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Zhang Q, Dai B, Fan M, Yang L, Li C, Hou G, Wang X, Gao H, Li J. Genome-wide profile analysis of the Hsp20 family in lettuce and identification of its response to drought stress. FRONTIERS IN PLANT SCIENCE 2024; 15:1426719. [PMID: 39070912 PMCID: PMC11272627 DOI: 10.3389/fpls.2024.1426719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 06/24/2024] [Indexed: 07/30/2024]
Abstract
Heat shock protein 20 (Hsp20) plays a very important role in response to abiotic stressors such as drought; however, in lettuce (Lactuca sativa L.), this gene family is poorly understood. This study used bioinformatics methods to identify 36 members of the lettuce Hsp20 family, which were named LsHsp20-1~LsHsp20-36. Subcellular localization results revealed that 26 members of the LsHsp20 protein family localized to the cytoplasm and nucleus. Additionally, 15 conserved domains were identified in the LsHsp20 protein family, with the number of amino acids ranging from 8 to 50. Gene structure analysis revealed that 15 genes (41.7%) had no introns, and 20 genes (55.5%) had one intron. The proportion of the LsHsp20 secondary structure was random coil > alpha helix > extended strand > beta turn. Chromosome positioning analysis indicated that 36 genes were unevenly distributed on nine chromosomes, and four pairs of genes were collinear. The Ka/Ks ratio of the collinear genes was less than 1, indicating that purifying selection dominated during L. sativa evolution. Thirteen pairs of genes were collinear in lettuce and Arabidopsis, and 14 pairs of genes were collinear in lettuce and tomato. A total of 36 LsHsp20 proteins were divided into 12 subgroups based on phylogenetic analysis. Three types of cis-acting elements, namely, abiotic and biotic stress-responsive, plant hormone-responsive, and plant development-related elements, were identified in the lettuce LsHsp20 family. qRT-PCR was used to analyze the expression levels of 23 LsHsp20 genes that were significantly upregulated on the 7th or 14th day of drought treatment, and the expression levels of two genes (LsHsp20-12 and LsHsp20-26) were significantly increased by 153-fold and 273-fold on the 14th and 7th days of drought treatment, respectively. The results of this study provide comprehensive information for research on the LsHsp20 gene family in lettuce and lay a solid foundation for further elucidation of Hsp20 biological functions, providing valuable information on the regulatory mechanisms of the LsHsp20 family in lettuce drought resistance.
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Affiliation(s)
- Qinqin Zhang
- College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Bowen Dai
- College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Mi Fan
- College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Liling Yang
- College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Chang Li
- College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Guangguang Hou
- College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Xiaofang Wang
- College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Hongbo Gao
- College of Horticulture, Hebei Agricultural University, Baoding, China
- Key Laboratory of North China Water-saving Irrigation Engineering, Hebei Agricultural University, Baoding, China
- Ministry of Education of China-Hebei Province Joint Innovation Center for Efficient Green Vegetable Industry, Baoding, China
| | - Jingrui Li
- College of Horticulture, Hebei Agricultural University, Baoding, China
- Key Laboratory of North China Water-saving Irrigation Engineering, Hebei Agricultural University, Baoding, China
- Ministry of Education of China-Hebei Province Joint Innovation Center for Efficient Green Vegetable Industry, Baoding, China
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Wi J, Park EJ, Hwang MS, Choi DW. A subfamily of the small heat shock proteins of the marine red alga Neopyropia yezoensis localizes in the chloroplast. Cell Stress Chaperones 2023; 28:835-846. [PMID: 37632625 PMCID: PMC10746837 DOI: 10.1007/s12192-023-01375-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/21/2022] [Accepted: 08/21/2023] [Indexed: 08/28/2023] Open
Abstract
Small heat shock proteins (sHSPs) play a crucial role under abiotic stress and are present in all organisms, from eukaryotes to prokaryotes. However, studies on the sHSP gene family in red alga are limited. In this study, we aimed to identify and characterize NysHSP genes from the genome of N. yezoensis, a marine red alga adapted to the stressful intertidal zone. We identified seven NysHSP genes distributed on all three chromosomes. Expression analysis revealed that all NysHSP genes responded to H2O2 and heat stress in the gametophytic thalli, but these genes responded only to heat stress in the sporophytic conchocelis. NysHSP20.3, which has an acidic isoelectric point (pI) and short N-terminal region, was localized as granules in the cytosol. Fluorescence imaging of the NysHSP25.8-GFP and NysHSP28.4-GFP fusion proteins revealed that these proteins were located in the chloroplast. Based on their characteristics and cellular localization, the NysHSPs are divided into two subfamilies. Subfamily I includes four sHSP genes that strongly respond to heat stress and encode a protein localized in the cytosol. The NysHSP gene of subfamily II encodes a polypeptide with a long N-terminal region located in the chloroplast. This study provides insights into the evolution and function of the sHSP gene family of the marine red alga N. yezoensis and how it adapts to the stressful intertidal zone.
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Affiliation(s)
- Jiwoong Wi
- Department of Biology Education and Kumho Life Science Laboratory, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Eun-Jeong Park
- Aquatic Plant Variety Center, National Institute of Fisheries Science, Mokpo, 59002, Republic of Korea
| | - Mi-Sook Hwang
- Fisheries Seed and Breeding Research Institute, National Institute of Fisheries Science, Haenam, 58746, Republic of Korea
| | - Dong-Woog Choi
- Department of Biology Education and Kumho Life Science Laboratory, Chonnam National University, Gwangju, 61186, Republic of Korea.
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Wei P, Yu X, Yang Y, Chen Z, Zhao S, Li X, Zhang W, Liu C, Li X, Liu X. Biased gene expression reveals the contribution of subgenome to altitude adaptation in allopolyploid Isoetes sinensis. Ecol Evol 2022; 12:e9677. [PMID: 36619709 PMCID: PMC9797765 DOI: 10.1002/ece3.9677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 12/02/2022] [Accepted: 12/06/2022] [Indexed: 12/31/2022] Open
Abstract
Allopolyploids are believed to inherit the genetic characteristics of its progenitors and exhibit stronger adaptability and vigor. The allotetraploid Isoetes sinensis was formed by the natural hybridization and polyploidization of two diploid progenitors, Isoetes taiwanensis and Isoetes yunguiensis, and was believed to have the potential to adapt to plateau environments. To explore the expression pattern of homoeologous genes and their contributions to altitude adaptation, we transplanted natural allotetraploid I. sinensis (TnTnYnYn) along the altitude gradient for a long-term, and harvested them in summer and winter, respectively. One year after transplanting, it still lived well, even in the extreme environment of the Qinghai-Tibet Plateau. Then, we performed high-throughput RNA sequencing to measure their gene expression level. A total of 7801 homoeologous genes were expressed, among which 5786 were identified as shared expression in different altitudes and seasons. We further found that altitude variations could change the subgenome bias trend of I. sinensis, but season could not. Moreover, the functions of uniquely expressed genes indicated that temperature might be an important restrictive factor during the adaptation process. Through the analysis of DEGs and uniquely expressed genes, we found that Y subgenome provided more contributions to high altitude adaptation than T subgenome. These adaptive traits to high altitude may be inherited from its plateau progenitor I. yunguiensis. Through weighted gene co-expression network analysis, pentatricopeptide repeats gene family and glycerophospholipid metabolism pathway were considered to play important roles in high-altitude adaptation. Totally, this study will enrich our understanding of allopolyploid in environmental adaptation.
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Affiliation(s)
- Pei Wei
- State Key Laboratory of Hybrid Rice, Laboratory of Plant Systematics and Evolutionary Biology, College of Life SciencesWuhan UniversityWuhanChina
| | - Xiao‐lei Yu
- State Key Laboratory of Hybrid Rice, Laboratory of Plant Systematics and Evolutionary Biology, College of Life SciencesWuhan UniversityWuhanChina
| | - Yu‐jiao Yang
- State Key Laboratory of Hybrid Rice, Laboratory of Plant Systematics and Evolutionary Biology, College of Life SciencesWuhan UniversityWuhanChina
| | - Zhu‐yifu Chen
- State Key Laboratory of Hybrid Rice, Laboratory of Plant Systematics and Evolutionary Biology, College of Life SciencesWuhan UniversityWuhanChina
| | - Shu‐qi Zhao
- State Key Laboratory of Hybrid Rice, Laboratory of Plant Systematics and Evolutionary Biology, College of Life SciencesWuhan UniversityWuhanChina
| | - Xin‐zhong Li
- Laboratory of Extreme Environmental Biological Resources and Adaptive Evolution, Research Center for Ecology, School of SciencesTibet UniversityLhasaChina
| | - Wen‐cai Zhang
- Laboratory of Extreme Environmental Biological Resources and Adaptive Evolution, Research Center for Ecology, School of SciencesTibet UniversityLhasaChina
| | - Chen‐lai Liu
- State Key Laboratory of Hybrid Rice, Laboratory of Plant Systematics and Evolutionary Biology, College of Life SciencesWuhan UniversityWuhanChina
| | - Xiao‐yan Li
- Biology Experimental Teaching Center, School of Life ScienceWuhan UniversityWuhanChina
| | - Xing Liu
- State Key Laboratory of Hybrid Rice, Laboratory of Plant Systematics and Evolutionary Biology, College of Life SciencesWuhan UniversityWuhanChina,Laboratory of Extreme Environmental Biological Resources and Adaptive Evolution, Research Center for Ecology, School of SciencesTibet UniversityLhasaChina
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The Common Bean Small Heat Shock Protein Nodulin 22 from Phaseolus vulgaris L. Assembles into Functional High-Molecular-Weight Oligomers. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248681. [PMID: 36557819 PMCID: PMC9783675 DOI: 10.3390/molecules27248681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/23/2022] [Accepted: 12/01/2022] [Indexed: 12/13/2022]
Abstract
Small heat shock proteins (sHsps) are present in all domains of life. These proteins are responsible for binding unfolded proteins to prevent their aggregation. sHsps form dynamic oligomers of different sizes and constitute transient reservoirs for folding competent proteins that are subsequently refolded by ATP-dependent chaperone systems. In plants, the sHsp family is rather diverse and has been associated with the ability of plants to survive diverse environmental stresses. Nodulin 22 (PvNod22) is an sHsp of the common bean (Phaseolus vulgaris L.) located in the endoplasmic reticulum. This protein is expressed in response to stress (heat or oxidative) or in plant roots during mycorrhizal and rhizobial symbiosis. In this work, we study its oligomeric state using a combination of in silico and experimental approaches. We found that recombinant PvNod22 was able to protect a target protein from heat unfolding in vitro. We also demonstrated that PvNod22 assembles into high-molecular-weight oligomers with diameters of ~15 nm under stress-free conditions. These oligomers can cluster together to form high-weight polydisperse agglomerates with temperature-dependent interactions; in contrast, the oligomers are stable regarding temperature.
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Strauch A, Rossa B, Köhler F, Haeussler S, Mühlhofer M, Rührnößl F, Körösy C, Bushman Y, Conradt B, Haslbeck M, Weinkauf S, Buchner J. The permanently chaperone-active small heat shock protein Hsp17 from Caenorhabditis elegans exhibits topological separation of its N-terminal regions. J Biol Chem 2022; 299:102753. [PMID: 36442512 PMCID: PMC9800568 DOI: 10.1016/j.jbc.2022.102753] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 11/27/2022] Open
Abstract
Small Heat shock proteins (sHsps) are a family of molecular chaperones that bind nonnative proteins in an ATP-independent manner. Caenorhabditis elegans encodes 16 different sHsps, among them Hsp17, which is evolutionarily distinct from other sHsps in the nematode. The structure and mechanism of Hsp17 and how these may differ from other sHsps remain unclear. Here, we find that Hsp17 has a distinct expression pattern, structural organization, and chaperone function. Consistent with its presence under nonstress conditions, and in contrast to many other sHsps, we determined that Hsp17 is a mono-disperse, permanently active chaperone in vitro, which interacts with hundreds of different C. elegans proteins under physiological conditions. Additionally, our cryo-EM structure of Hsp17 reveals that in the 24-mer complex, 12 N-terminal regions are involved in its chaperone function. These flexible regions are located on the outside of the spherical oligomer, whereas the other 12 N-terminal regions are engaged in stabilizing interactions in its interior. This allows the same region in Hsp17 to perform different functions depending on the topological context. Taken together, our results reveal structural and functional features that further define the structural basis of permanently active sHsps.
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Affiliation(s)
- Annika Strauch
- Center for Protein Assemblies and Department of Chemistry, Technische Universität München, Garching, Germany
| | - Benjamin Rossa
- Center for Protein Assemblies and Department of Chemistry, Technische Universität München, Garching, Germany
| | - Fabian Köhler
- Faculty of Biology, Ludwig-Maximilians-University Munich, Planegg-Martinsried, Germany
| | - Simon Haeussler
- Faculty of Biology, Ludwig-Maximilians-University Munich, Planegg-Martinsried, Germany
| | - Moritz Mühlhofer
- Center for Protein Assemblies and Department of Chemistry, Technische Universität München, Garching, Germany
| | - Florian Rührnößl
- Center for Protein Assemblies and Department of Chemistry, Technische Universität München, Garching, Germany
| | - Caroline Körösy
- Center for Protein Assemblies and Department of Chemistry, Technische Universität München, Garching, Germany; Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, Netherlands
| | - Yevheniia Bushman
- Center for Protein Assemblies and Department of Chemistry, Technische Universität München, Garching, Germany
| | - Barbara Conradt
- Faculty of Biology, Ludwig-Maximilians-University Munich, Planegg-Martinsried, Germany
| | - Martin Haslbeck
- Center for Protein Assemblies and Department of Chemistry, Technische Universität München, Garching, Germany
| | - Sevil Weinkauf
- Center for Protein Assemblies and Department of Chemistry, Technische Universität München, Garching, Germany
| | - Johannes Buchner
- Center for Protein Assemblies and Department of Chemistry, Technische Universität München, Garching, Germany.
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SiHSFA2e regulated expression of SisHSP21.9 maintains chloroplast proteome integrity under high temperature stress. Cell Mol Life Sci 2022; 79:580. [DOI: 10.1007/s00018-022-04611-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/06/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022]
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Huang J, Hai Z, Wang R, Yu Y, Chen X, Liang W, Wang H. Genome-wide analysis of HSP20 gene family and expression patterns under heat stress in cucumber ( Cucumis sativus L.). FRONTIERS IN PLANT SCIENCE 2022; 13:968418. [PMID: 36035708 PMCID: PMC9412230 DOI: 10.3389/fpls.2022.968418] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 07/27/2022] [Indexed: 05/03/2023]
Abstract
Cucumber is an important vegetable in China, and its yield and cultivation area are among the largest in the world. Excessive temperatures lead to high-temperature disorder in cucumber. Heat shock protein 20 (HSP20), an essential protein in the process of plant growth and development, is a universal protective protein with stress resistance. HSP20 plays crucial roles in plants under stress. In this study, we characterized the HSP20 gene family in cucumber by studying chromosome location, gene duplication, phylogenetic relationships, gene structure, conserved motifs, protein-protein interaction (PPI) network, and cis-regulatory elements. A total of 30 CsHSP20 genes were identified, distributed across 6 chromosomes, and classified into 11 distinct subgroups based on conserved motif composition, gene structure analyses, and phylogenetic relationships. According to the synteny analysis, cucumber had a closer relationship with Arabidopsis and soybean than with rice and maize. Collinearity analysis revealed that gene duplication, including tandem and segmental duplication, occurred as a result of positive selection and purifying selection. Promoter analysis showed that the putative promoters of CsHSP20 genes contained growth, stress, and hormone cis-elements, which were combined with protein-protein interaction networks to reveal their potential function mechanism. We further analyzed the gene expression of CsHSP20 genes under high stress and found that the majority of the CsHSP20 genes were upregulated, suggesting that these genes played a positive role in the heat stress-mediated pathway at the seedling stage. These results provide comprehensive information on the CsHSP20 gene family in cucumber and lay a solid foundation for elucidating the biological functions of CsHSP20. This study also provides valuable information on the regulation mechanism of the CsHSP20 gene family in the high-temperature resistance of cucumber.
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Affiliation(s)
| | | | | | | | | | | | - Huahua Wang
- College of Life Science, Henan Normal University, Xinxiang, China
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Roy M, Bhakta K, Ghosh A. Minimal Yet Powerful: The Role of Archaeal Small Heat Shock Proteins in Maintaining Protein Homeostasis. Front Mol Biosci 2022; 9:832160. [PMID: 35647036 PMCID: PMC9133787 DOI: 10.3389/fmolb.2022.832160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 02/02/2022] [Indexed: 11/21/2022] Open
Abstract
Small heat shock proteins (sHsp) are a ubiquitous group of ATP-independent chaperones found in all three domains of life. Although sHsps in bacteria and eukaryotes have been studied extensively, little information was available on their archaeal homologs until recently. Interestingly, archaeal heat shock machinery is strikingly simplified, offering a minimal repertoire of heat shock proteins to mitigate heat stress. sHsps play a crucial role in preventing protein aggregation and holding unfolded protein substrates in a folding-competent form. Besides protein aggregation protection, archaeal sHsps have been shown recently to stabilize membranes and contribute to transferring captured substrate proteins to chaperonin for refolding. Furthermore, recent studies on archaeal sHsps have shown that environment-induced oligomeric plasticity plays a crucial role in maintaining their functional form. Despite being prokaryotes, the archaeal heat shock protein repository shares several features with its highly sophisticated eukaryotic counterpart. The minimal nature of the archaeal heat shock protein repository offers ample scope to explore the function and regulation of heat shock protein(s) to shed light on their evolution. Moreover, similar structural dynamics of archaeal and human sHsps have made the former an excellent system to study different chaperonopathies since archaeal sHsps are more stable under in vitro experiments.
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Falak S, Sajed M, Rashid N. Strategies to enhance soluble production of heterologous proteins in Escherichia coli. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-021-00994-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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Anticancer effects of 7,8-dihydromethysticin in human leukemia cells are mediated via cell-cycle dysregulation, inhibition of cell migration and invasion and targeting JAK/STAT pathway. ACTA PHARMACEUTICA (ZAGREB, CROATIA) 2021; 71:645-655. [PMID: 36651559 DOI: 10.2478/acph-2021-0037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/27/2020] [Indexed: 01/19/2023]
Abstract
The main focus of this research work was to study the anti-cancer properties of 7,8-dihydromethysticin against HL-60 leukemia cells. Investigations were also performed to check its impact on the phases of the cell cycle, cell migration and invasion, JAK/STAT signalling pathway and intracellular mitochondrial membrane potential (MMP) and reactive oxygen species (ROS). Cell proliferation was assessed through 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay and effects on colony formation were examined via clonogenic assay. Flow cytometry and Western blott analysis were performed to investigate the distribution of cell cycle phases. Flow cytometric analysis was performed for the examination of MMP and ROS production. The effect on JAK/STAT signalling pathway was examined through Western blot analysis. Results depicted that 7,8-dihydromethysticin induced concentration- as well as time-dependent inhibition of cell proliferation in leukemia HL-60 cells. Clonogenic assay indicated potential suppression in leukemia HL-60 cell colonies. The 7,8-dihydromethysticin molecule also caused cell cycle arrest at G2/M-phase along with concentration-dependent inhibition of cyclin B1, D1 and E. ROS and MMP measurements indicated significant ROS enhancement and MMP suppression with increasing 7,8-dihydromethysticin concentrations. Additionally, 7,8-dihydromethysticin led to remarkable dose-reliant inhibition of cell invasion as well as cell migration. Therefore, 7,8-dihydromethysticin should be considered a valuable candidate for leukemia research and chemoprevention.
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Khatun M, Borphukan B, Alam I, Keya CA, Panditi V, Khan H, Huq S, Reddy MK, Salimullah M. Mitochondria-Targeted SmsHSP24.1 Overexpression Stimulates Early Seedling Vigor and Stress Tolerance by Multi-Pathway Transcriptome-Reprogramming. FRONTIERS IN PLANT SCIENCE 2021; 12:741898. [PMID: 34887885 PMCID: PMC8649800 DOI: 10.3389/fpls.2021.741898] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
Among the diverse array of heat shock proteins across the three domains of life, mitochondria-targeted small heat shock proteins (sHSPs) are evolved in the plant lineage. However, they remained mysterious and understudied. In this study, we reported a systematic study of a novel mitochondria-targeted nuclear sHSP from eggplant (Solanum melongena L.; SmsHSP24.1). Differential expression of SmsHSP24.1 indicated its positive role exerted during stress conditions. Escherichia coli-BL21 cell line overexpressing the SmsHSP24.1 showed excellent thermo-tolerance ability, tolerating up to 52°C. Spectrometry and electron microscopy revealed a multimeric structure of the protein which acted as a molecular chaperone at high temperatures. Overexpression of SmsHSP24.1 significantly enhanced resistance against heat, drought, and salt stresses and showed rapid germination in constitutively overexpressed eggplant lines. RNA-seq analysis reveals an apparent upregulation of a set of reactive oxygen species (ROS) scavenging enzymes of the glutathione (GHS) pathway and mitochondrial electron transport chain (ETC). Significant upregulation was also observed in auxin biosynthesis and cell-wall remodeling transcripts in overexpressed lines. qPCR, biochemical and physiological analysis further aligned with the finding of transcriptome analysis and suggested an essential role of SmsHSP24.1 under various stress responses and positive physiological influence on the growth of eggplants. Therefore, this gene has immense potential in engineering stress-resilient crop plants.
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Affiliation(s)
- Muslima Khatun
- Plant Biotechnology Division, National Institute of Biotechnology, Dhaka, Bangladesh
| | - Bhabesh Borphukan
- Crop Improvement Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Iftekhar Alam
- Plant Biotechnology Division, National Institute of Biotechnology, Dhaka, Bangladesh
| | - Chaman Ara Keya
- Department of Biochemistry and Microbiology, North South University, Dhaka, Bangladesh
| | - Varakumar Panditi
- Crop Improvement Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Haseena Khan
- Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, Bangladesh
| | - Saaimatul Huq
- Molecular Biotechnology Division, National Institute of Biotechnology, Dhaka, Bangladesh
| | - Malireddy K. Reddy
- Crop Improvement Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Md. Salimullah
- Molecular Biotechnology Division, National Institute of Biotechnology, Dhaka, Bangladesh
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Roy M, Bhakta K, Bhowmick A, Gupta S, Ghosh A, Ghosh A. Archaeal Hsp14 drives substrate shuttling between small heat shock proteins and thermosome: insights into a novel substrate transfer pathway. FEBS J 2021; 289:1080-1104. [PMID: 34637594 DOI: 10.1111/febs.16226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 08/26/2021] [Accepted: 10/11/2021] [Indexed: 12/25/2022]
Abstract
Heat shock proteins maintain protein homeostasis and facilitate the survival of an organism under stress. Archaeal heat shock machinery usually consists of only sHsps, Hsp70, and Hsp60. Moreover, Hsp70 is absent in thermophilic and hyperthermophilic archaea. In the absence of Hsp70, how aggregating protein substrates are transferred to Hsp60 for refolding remains elusive. Here, we investigated the crosstalk in the heat shock response pathway of thermoacidophilic crenarchaeon Sulfolobus acidocaldarius. In the present study, we biophysically and biochemically characterized one of the small heat shock proteins, Hsp14, of S. acidocaldarius. Moreover, we investigated its ability to interact with Hsp20 and Hsp60 to facilitate the substrate proteins' folding under stress conditions. Like Hsp20, we demonstrated that the dimer is the active form of Hsp14, and it forms an oligomeric storage form at a higher temperature. More importantly, the dynamics of the Hsp14 oligomer are maintained by rapid subunit exchange between the dimeric states, and the rate of subunit exchange increases with increasing temperature. We also tested the ability of Hsp14 to form hetero-oligomers via subunit exchange with Hsp20. We observed hetero-oligomer formation only at higher temperatures (50 °C-70 °C). Furthermore, experiments were performed to investigate the interaction between small heat shock proteins and Hsp60. We demonstrated an enthalpy-driven direct physical interaction between Hsp14 and Hsp60. Our results revealed that Hsp14 could transfer sHsp-captured substrate proteins to Hsp60, which then refolds them back to their active form.
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Affiliation(s)
- Mousam Roy
- Department of Biochemistry, Bose Institute, Kolkata, India
| | - Koustav Bhakta
- Department of Biochemistry, Bose Institute, Kolkata, India
| | | | | | - Anupama Ghosh
- Division of Plant Biology, Bose Institute, Kolkata, India
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13
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The Pathophysiological Role of Heat Shock Response in Autoimmunity: A Literature Review. Cells 2021; 10:cells10102626. [PMID: 34685607 PMCID: PMC8533860 DOI: 10.3390/cells10102626] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/27/2021] [Accepted: 09/28/2021] [Indexed: 12/16/2022] Open
Abstract
Within the last two decades, there has been increasing evidence that heat-shock proteins can have a differential influence on the immune system. They can either provoke or ameliorate immune responses. This review focuses on outlining the stimulatory as well as the inhibitory effects of heat-shock proteins 27, 40, 70, 65, 60, and 90 in experimental and clinical autoimmune settings.
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14
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The relationship between small heat shock proteins and redox homeostasis during acute heat stress in chickens. J Therm Biol 2021; 100:103040. [PMID: 34503787 DOI: 10.1016/j.jtherbio.2021.103040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 06/01/2021] [Accepted: 06/25/2021] [Indexed: 12/25/2022]
Abstract
As heat stress is a major emerging issue in poultry farming, investigations on the molecular mechanisms of the heat-triggered cellular response in chickens are of special importance. In the present study, 32-day-old Ross 308 broiler chickens were subjected to 37 °C environmental temperature combined with 50% relative humidity for 4 or 8 h respectively. Following sampling, redox parameters such as malondialdehyde (MDA), reduced glutathione (GSH), protein carbonyl levels as well as glutathione peroxidase activity were assessed in liver, spleen, and kidney homogenates. The concentrations of small heat shock proteins (sHSP-s) HSP27, αA- and αB-crystallins were also investigated. Among these organs, the liver was found the most susceptible to heat-provoked oxidative stress, indicated by enhanced lipid peroxidation and rapid activation of protective pathways, including the definite increase of glutathione peroxidase activity and the excessive utilization of αA- and αB-crystallin proteins. Heat-associated decline of protein carbonylation and GSH content was observed in the liver in correlation with the increased involvement of αA- and αB-crystallins in cellular defense, resulting supposedly in an overcompensation mechanism. These data highlight the hepatic sensitivity to acute heat shock, potential adaptation mechanisms, and the specific role of sHSP-s in the restoration of physiologic cell function.
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15
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Short-form OPA1 is a molecular chaperone in mitochondrial intermembrane space. SCIENCE CHINA-LIFE SCIENCES 2021; 65:227-235. [PMID: 34480695 DOI: 10.1007/s11427-021-1962-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 06/15/2021] [Indexed: 10/20/2022]
Abstract
Mitochondria, double-membrane organelles, are known to participate in a variety of metabolic and signal transduction pathways. The intermembrane space (IMS) of mitochondria is proposed to subject to multiple damages emanating from the respiratory chain. The optic atrophy 1 (OPA1), an important protein for mitochondrial fusion, is cleaved into soluble short-form (S-OPA1) under stresses. Here we report that S-OPA1 could function as a molecular chaperone in IMS. We purified the S-OPA1 (amino acid sequence after OPA1 isoform 5 S1 site) protein and showed it protected substrate proteins from thermally and chemically induced aggregation and strengthened the thermotolerance of Escherichia coli (E. coli). We also showed that S-OPA1 conferred thermotolerance on IMS proteins, e.g., neurolysin. The chaperone activity of S-OPA1 may be required for maintaining IMS homeostasis in mitochondria.
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16
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Rice LJ, Ecroyd H, van Oijen AM. Illuminating amyloid fibrils: Fluorescence-based single-molecule approaches. Comput Struct Biotechnol J 2021; 19:4711-4724. [PMID: 34504664 PMCID: PMC8405898 DOI: 10.1016/j.csbj.2021.08.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 08/11/2021] [Accepted: 08/12/2021] [Indexed: 12/15/2022] Open
Abstract
The aggregation of proteins into insoluble filamentous amyloid fibrils is a pathological hallmark of neurodegenerative diseases that include Parkinson's disease and Alzheimer's disease. Since the identification of amyloid fibrils and their association with disease, there has been much work to describe the process by which fibrils form and interact with other proteins. However, due to the dynamic nature of fibril formation and the transient and heterogeneous nature of the intermediates produced, it can be challenging to examine these processes using techniques that rely on traditional ensemble-based measurements. Single-molecule approaches overcome these limitations as rare and short-lived species within a population can be individually studied. Fluorescence-based single-molecule methods have proven to be particularly useful for the study of amyloid fibril formation. In this review, we discuss the use of different experimental single-molecule fluorescence microscopy approaches to study amyloid fibrils and their interaction with other proteins, in particular molecular chaperones. We highlight the mechanistic insights these single-molecule techniques have already provided in our understanding of how fibrils form, and comment on their potential future use in studying amyloid fibrils and their intermediates.
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Affiliation(s)
- Lauren J. Rice
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia
- Illawarra Health & Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Heath Ecroyd
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia
- Illawarra Health & Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Antoine M. van Oijen
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia
- Illawarra Health & Medical Research Institute, Wollongong, NSW 2522, Australia
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17
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Liu D, Chen Q, Zhang L, Hu H, Yin C. AgsA oligomer acts as a functional unit. Biochem Biophys Res Commun 2020; 530:22-28. [PMID: 32828289 DOI: 10.1016/j.bbrc.2020.07.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 07/08/2020] [Indexed: 11/18/2022]
Abstract
AgsA (aggregation-suppressing protein) is an ATP-independent molecular chaperone machine belonging to the family of small heat shock proteins (sHSP), and it can prevent the aggregation of non-natural proteins. However, the substrate-binding site of AgsA and the functional unit that captures and binds the substrate remain unknown. In this study, different N-terminal and C-terminal deletion mutants of AgsA were constructed and their effects on AgsA oligomer assembly and chaperone activity were investigated. We found that the IXI motif at the C-terminus and the α-helix at the N-terminus affected the oligomerization and molecular chaperone activity of AgsA. In this work, we obtained a 6.8 Å resolution structure of AgsA using Electron cryo-microscopy (cryo-EM), and found that the functional form of AgsA was an 18-mer with D3 symmetry. Through amino acid mutations, disulfide bonds were introduced into two oligomeric interfaces, namely dimeric interface and non-partner interface. Under oxidation and reduction conditions, the chaperone activity of the disulfide-bonded AgsA did not change significantly, indicating that AgsA would not dissociate to achieve chaperone activity. Therefore, we concluded that the oligomer, especially 18-mer, was the primary functional unit.
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Affiliation(s)
- Dongmei Liu
- Department of Biochemistry and Biophysics, The Health Science Center, Peking University, Beijing, 100191, China.
| | - Qiang Chen
- The Chinese University of Hong Kong, Shenzhen, Shenzhen, Guangdong, 518172, PR China.
| | - Lei Zhang
- Department of Biochemistry and Biophysics, The Health Science Center, Peking University, Beijing, 100191, China; Electron Microscopy Analysis Laboratory, Center of Medical and Health Analysis, Peking University, Beijing, 100191, China.
| | - Hongli Hu
- The Chinese University of Hong Kong, Shenzhen, Shenzhen, Guangdong, 518172, PR China.
| | - Changcheng Yin
- Department of Biochemistry and Biophysics, The Health Science Center, Peking University, Beijing, 100191, China; Electron Microscopy Analysis Laboratory, Center of Medical and Health Analysis, Peking University, Beijing, 100191, China.
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18
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Al-Thuwaini TM, Al-Shuhaib MBS, Hussein ZM. A novel T177P missense variant in the HSPA8 gene associated with the low tolerance of Awassi sheep to heat stress. Trop Anim Health Prod 2020; 52:2405-2416. [PMID: 32277322 DOI: 10.1007/s11250-020-02267-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 03/30/2020] [Indexed: 01/19/2023]
Abstract
This study was conducted to identify the association of coding variations in the HSPA8 gene with heat stress in two different breeds of sheep. All the coding regions of the HSPA8 gene of Awassi and Arabi sheep were covered by amplifying nine exons. A single-strand conformation polymorphism (SSCP) was utilized to assess the genetic variations in both breeds. The possible association of the observed genotypes with rectal temperature (RT), respiratory rate (RR), and heat tolerance coefficient (HTC) was analyzed in different seasons. While all the coding regions of both sheep were monomorphous, a remarkable heterogeneity was observed in exon 4, of which two SSCP patterns, a normal TT and a mutant TG, were detected. The TG genotype was characterized by a missense variant of T177P with frequencies of 77% in Awassi and 54% in Arabi. Cumulative in silico tools indicated extremely deleterious consequences for T177P on protein structure, function, and stability. Results indicated that sheep with the TT genotype had significantly (P < 0.05) lower RT, RR, and HTC values than sheep with the TG genotype. Therefore, a significant association of T177P with a lower tolerance of Awassi to higher temperature conditions was revealed. In conclusion, the identified T177P may have damaging effects in the HSPA8, which affects the ability of Awassi sheep to cope up with elevated temperatures compared with Arabi sheep. This manuscript describes a novel description of a highly deleterious missense variant in the HSPA8 gene that may reduce the ability of sheep to withstand high-temperature conditions.
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Affiliation(s)
- Tahreer M Al-Thuwaini
- Department of Animal Production, College of Agriculture, Al-Qasim Green University, Al-Qasim, Babil, 51001, Iraq
| | - Mohammed Baqur S Al-Shuhaib
- Department of Animal Production, College of Agriculture, Al-Qasim Green University, Al-Qasim, Babil, 51001, Iraq.
| | - Zainab Manji Hussein
- Department of Animal Production, College of Agriculture, Al-Qasim Green University, Al-Qasim, Babil, 51001, Iraq
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19
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Iburg M, Puchkov D, Rosas-Brugada IU, Bergemann L, Rieprecht U, Kirstein J. The noncanonical small heat shock protein HSP-17 from Caenorhabditis elegans is a selective protein aggregase. J Biol Chem 2020; 295:3064-3079. [PMID: 32001616 DOI: 10.1074/jbc.ra119.011185] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 01/22/2020] [Indexed: 12/14/2022] Open
Abstract
Small heat shock proteins (sHsps) are conserved, ubiquitous members of the proteostasis network. Canonically, they act as "holdases" and buffer unfolded or misfolded proteins against aggregation in an ATP-independent manner. Whereas bacteria and yeast each have only two sHsps in their genomes, this number is higher in metazoan genomes, suggesting a spatiotemporal and functional specialization in higher eukaryotes. Here, using recombinantly expressed and purified proteins, static light-scattering analysis, and disaggregation assays, we report that the noncanonical sHsp HSP-17 of Caenorhabditis elegans facilitates aggregation of model substrates, such as malate dehydrogenase (MDH), and inhibits disaggregation of luciferase in vitro Experiments with fluorescently tagged HSP-17 under the control of its endogenous promoter revealed that HSP-17 is expressed in the digestive and excretory organs, where its overexpression promotes the aggregation of polyQ proteins and of the endogenous kinase KIN-19. Systemic depletion of hsp-17 shortens C. elegans lifespan and severely reduces fecundity and survival upon prolonged heat stress. HSP-17 is an abundant protein exhibiting opposing chaperone activities on different substrates, indicating that it is a selective protein aggregase with physiological roles in development, digestion, and osmoregulation.
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Affiliation(s)
- Manuel Iburg
- Leibniz Research Institute for Molecular Pharmacology im Forschungsverbund Berlin e.V., R.-Roessle-Strasse 10, 13125 Berlin, Germany
| | - Dmytro Puchkov
- Leibniz Research Institute for Molecular Pharmacology im Forschungsverbund Berlin e.V., R.-Roessle-Strasse 10, 13125 Berlin, Germany
| | - Irving U Rosas-Brugada
- Leibniz Research Institute for Molecular Pharmacology im Forschungsverbund Berlin e.V., R.-Roessle-Strasse 10, 13125 Berlin, Germany
| | - Linda Bergemann
- Leibniz Research Institute for Molecular Pharmacology im Forschungsverbund Berlin e.V., R.-Roessle-Strasse 10, 13125 Berlin, Germany
| | - Ulrike Rieprecht
- Leibniz Research Institute for Molecular Pharmacology im Forschungsverbund Berlin e.V., R.-Roessle-Strasse 10, 13125 Berlin, Germany
| | - Janine Kirstein
- Leibniz Research Institute for Molecular Pharmacology im Forschungsverbund Berlin e.V., R.-Roessle-Strasse 10, 13125 Berlin, Germany; Faculty 2, Cell Biology, University of Bremen, Leobener Strasse, 28359 Bremen, Germany.
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20
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Avelange-Macherel MH, Rolland A, Hinault MP, Tolleter D, Macherel D. The Mitochondrial Small Heat Shock Protein HSP22 from Pea is a Thermosoluble Chaperone Prone to Co-Precipitate with Unfolding Client Proteins. Int J Mol Sci 2019; 21:E97. [PMID: 31877784 PMCID: PMC6981728 DOI: 10.3390/ijms21010097] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 12/19/2019] [Accepted: 12/19/2019] [Indexed: 12/26/2022] Open
Abstract
The small heat shock proteins (sHSPs) are molecular chaperones that share an alpha-crystallin domain but display a high diversity of sequence, expression, and localization. They are especially prominent in plants, populating most cellular compartments. In pea, mitochondrial HSP22 is induced by heat or oxidative stress in leaves but also strongly accumulates during seed development. The molecular function of HSP22 was addressed by studying the effect of temperature on its structural properties and chaperone effects using a recombinant or native protein. Overexpression of HSP22 significantly increased bacterial thermotolerance. The secondary structure of the recombinant protein was not affected by temperature in contrast with its quaternary structure. The purified protein formed large polydisperse oligomers that dissociated upon heating (42 °C) into smaller species (mainly monomers). The recombinant protein appeared thermosoluble but precipitated with thermosensitive proteins upon heat stress in assays either with single protein clients or within complex extracts. As shown by in vitro protection assays, HSP22 at high molar ratio could partly prevent the heat aggregation of rhodanese but not of malate dehydrogenase. HSP22 appears as a holdase that could possibly prevent the aggregation of some proteins while co-precipitating with others to facilitate their subsequent refolding by disaggregases or clearance by proteases.
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Affiliation(s)
| | | | | | | | - David Macherel
- IRHS, Agrocampus-Ouest, INRA, Université d’Angers, SFR 4207 Quasav, 42 rue George Morel, 49071 Beaucouzé, France; (M.-H.A.-M.)
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21
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Hall D. On the nature of the optimal form of the holdase-type chaperone stress response. FEBS Lett 2019; 594:43-66. [PMID: 31432502 DOI: 10.1002/1873-3468.13580] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 08/12/2019] [Accepted: 08/14/2019] [Indexed: 11/08/2022]
Abstract
The holdase paradigm of chaperone action involves preferential binding by the chaperone to the unfolded protein state, thereby preventing it from either, associating with other unstable proteins (to form large dysfunctional aggregates), or being degraded by the proteolytic machinery of the cell/organism. In this paper, we examine the necessary physical constraints imposed upon the holdase chaperone response in a cell-like environment and use these limitations to comment on the likely nature of the optimal form of chaperone response in vivo.
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Affiliation(s)
- Damien Hall
- Laboratory of Biochemistry and Genetics, NIDDK, NIH, Bethesda, MD, USA.,Institute for Protein Research, Osaka University, Suita, Osaka, Japan
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22
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Liu S, Liu L, Aranda MA, Peng B, Gu Q. Expression and Localization Patterns of a Small Heat Shock Protein that Interacts with the Helicase Domain of Cucumber Green Mottle Mosaic Virus. PHYTOPATHOLOGY 2019; 109:1648-1657. [PMID: 31025902 DOI: 10.1094/phyto-11-18-0436-r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Cucumber green mottle mosaic virus (CGMMV), a member of the genus Tobamovirus (family Virgaviridae), is an economically important virus that has detrimental effects on cucurbit crops worldwide. Understanding the interaction between host factors and CGMMV viral proteins will facilitate the design of new strategies for disease control. In this study, a yeast two-hybrid assay revealed that the CGMMV helicase (HEL) domain interacts with a Citrullus lanatus small heat shock protein (sHSP), and we verified this observation by performing in vitro GST pull-down and in vivo coimmunoprecipitation assays. Measurement of the levels of accumulated sHSP transcript revealed that sHSP is upregulated on initial CGMMV infection in both Nicotiana benthamiana and C. lanatus plants, although not in the systemically infected leaves. We also found that the subcellular localization of the sHSP was altered after CGMMV infection. To further validate the role of sHSP in CGMMV infection, we produced and assayed N. benthamiana transgenic plants with up- and down-regulated sHSP expression. Overexpression of sHSP inhibited viral RNA accumulation and retarded disease development, whereas sHSP silencing had no marked effect on CGMMV infection. Therefore, we postulate that the identified sHSP may be one of the factors modulating host defense mechanisms in response to CGMMV infection and that the HEL domain interaction may inhibit this sHSP function to promote viral infection.
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Affiliation(s)
- Shanshan Liu
- Henan Provincial Key Laboratory of Fruit and Cucurbit Biology, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, Henan, China
| | - Lifeng Liu
- Henan Provincial Key Laboratory of Fruit and Cucurbit Biology, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, Henan, China
| | - Miguel A Aranda
- Centro de Edafología y Biología Aplicada del Segura-CSIC, 30100 Espinardo, Murcia, Spain
| | - Bin Peng
- Henan Provincial Key Laboratory of Fruit and Cucurbit Biology, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, Henan, China
| | - Qinsheng Gu
- Henan Provincial Key Laboratory of Fruit and Cucurbit Biology, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, Henan, China
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23
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Yin B, Tang S, Xu J, Sun J, Zhang X, Li Y, Bao E. CRYAB protects cardiomyocytes against heat stress by preventing caspase-mediated apoptosis and reducing F-actin aggregation. Cell Stress Chaperones 2019; 24:59-68. [PMID: 30246229 PMCID: PMC6363628 DOI: 10.1007/s12192-018-0941-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 09/10/2018] [Accepted: 09/11/2018] [Indexed: 11/28/2022] Open
Abstract
CRYAB is a small heat shock protein (sHSP) that has previously been shown to protect the heart against various cellular stresses; however, its precise function in myocardial cell injury caused by heat stress remains unclear. This study aimed to investigate the molecular mechanism by which CRYAB protects cardiomyocytes against heat stress. We constructed two H9C2 cell lines that stably express CRYAB protein to differing degrees: CRYAB-5 and CRYAB-7. Both CRYAB-5 and CRYAB-7 showed significantly reduced granular degeneration and vacuolar degeneration following heat stress compared to control cells. In addition, CRYAB overexpression in H9C2 cells relieved cell cycle proportion at the G0/G1 phase following heat stress compared to control cells. These protective effects were associated with the level of CRYAB protein expression. Our immunofluorescence analysis showed CRYAB could translocate from the cytoplasm to the nucleus under heat stress conditions, but that CRYAB co-localized with F-actin (which accumulates under stress conditions). Indeed, overexpression of CRYAB significantly reduced the aggregation of F-actin in H9C2 cells caused by heat stress. Furthermore, overexpressing CRYAB protein significantly reduced the apoptosis of cardiomyocytes induced by heat stress, likely by reducing the expression of cleaved-caspase 3. Collectively, our results show overexpression of CRYAB significantly increases the heat resistance of H9C2 cardiomyocytes, likely by reducing F-actin aggregation (thus stabilizing the cytoskeleton), regulating the cell cycle, and preventing caspase-mediated apoptosis.
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Affiliation(s)
- Bin Yin
- College of Veterinary Medicine, Nanjing Agricultural University, Weigang 1, Nanjing, 210095, China
| | - Shu Tang
- College of Veterinary Medicine, Nanjing Agricultural University, Weigang 1, Nanjing, 210095, China
| | - Jiao Xu
- College of Veterinary Medicine, Nanjing Agricultural University, Weigang 1, Nanjing, 210095, China
| | - Jiarui Sun
- College of Veterinary Medicine, Nanjing Agricultural University, Weigang 1, Nanjing, 210095, China
| | - Xiaohui Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Weigang 1, Nanjing, 210095, China
| | - Yubao Li
- College of Agronomy, Liaocheng University, Hunan road 1, Liaocheng, 252000, China
| | - Endong Bao
- College of Veterinary Medicine, Nanjing Agricultural University, Weigang 1, Nanjing, 210095, China.
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24
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Avraham O, Bayer EA, Livnah O. Crystal structure of afifavidin reveals common features of molecular assemblage in the bacterial dimeric avidins. FEBS J 2018; 285:4617-4630. [DOI: 10.1111/febs.14685] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 10/10/2018] [Accepted: 10/24/2018] [Indexed: 01/05/2023]
Affiliation(s)
- Orly Avraham
- Department of Biological Chemistry The Alexander Silverman Institute of Life Sciences The Wolfson Centre for Applied Structural Biology The Hebrew University of Jerusalem Israel
| | - Edward A. Bayer
- Department of Biological Chemistry The Weizmann Institute of Science Rehovot Israel
| | - Oded Livnah
- Department of Biological Chemistry The Alexander Silverman Institute of Life Sciences The Wolfson Centre for Applied Structural Biology The Hebrew University of Jerusalem Israel
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25
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Santhanagopalan I, Degiacomi MT, Shepherd DA, Hochberg GKA, Benesch JLP, Vierling E. It takes a dimer to tango: Oligomeric small heat shock proteins dissociate to capture substrate. J Biol Chem 2018; 293:19511-19521. [PMID: 30348902 DOI: 10.1074/jbc.ra118.005421] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 10/12/2018] [Indexed: 12/23/2022] Open
Abstract
Small heat-shock proteins (sHsps) are ubiquitous molecular chaperones, and sHsp mutations or altered expression are linked to multiple human disease states. sHsp monomers assemble into large oligomers with dimeric substructure, and the dynamics of sHsp oligomers has led to major questions about the form that captures substrate, a critical aspect of their mechanism of action. We show here that substructural dimers of two plant dodecameric sHsps, Ta16.9 and homologous Ps18.1, are functional units in the initial encounter with unfolding substrate. We introduced inter-polypeptide disulfide bonds at the two dodecameric interfaces, dimeric and nondimeric, to restrict how their assemblies can dissociate. When disulfide-bonded at the nondimeric interface, mutants of Ta16.9 and Ps18.1 (TaCT-ACD and PsCT-ACD) were inactive but, when reduced, had WT-like chaperone activity, demonstrating that dissociation at nondimeric interfaces is essential for sHsp activity. Moreover, the size of the TaCT-ACD and PsCT-ACD covalent unit defined a new tetrahedral geometry for these sHsps, different from that observed in the Ta16.9 X-ray structure. Importantly, oxidized Tadimer (disulfide bonded at the dimeric interface) exhibited greatly enhanced ability to protect substrate, indicating that strengthening the dimeric interface increases chaperone efficiency. Temperature-induced size and secondary structure changes revealed that folded sHsp dimers interact with substrate and that dimer stability affects chaperone efficiency. These results yield a model in which sHsp dimers capture substrate before assembly into larger, heterogeneous sHsp-substrate complexes for substrate refolding or degradation, and suggest that tuning the strength of the dimer interface can be used to engineer sHsp chaperone efficiency.
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Affiliation(s)
- Indu Santhanagopalan
- From the Department of Biochemistry and Molecular Biology, University of Massachusetts Amherst, Amherst, Massachusetts 01003
| | - Matteo T Degiacomi
- Department of Chemistry, Physical & Theoretical Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, United Kingdom, and.,Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, United Kingdom
| | - Dale A Shepherd
- Department of Chemistry, Physical & Theoretical Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, United Kingdom, and
| | - Georg K A Hochberg
- Department of Chemistry, Physical & Theoretical Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, United Kingdom, and
| | - Justin L P Benesch
- Department of Chemistry, Physical & Theoretical Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, United Kingdom, and
| | - Elizabeth Vierling
- From the Department of Biochemistry and Molecular Biology, University of Massachusetts Amherst, Amherst, Massachusetts 01003,
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26
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Roy M, Gupta S, Patranabis S, Ghosh A. The oligomeric plasticity of Hsp20 of Sulfolobus acidocaldarius protects environment-induced protein aggregation and membrane destabilization. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2018; 1860:2549-2565. [PMID: 30293966 DOI: 10.1016/j.bbamem.2018.09.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 08/29/2018] [Accepted: 09/05/2018] [Indexed: 12/21/2022]
Abstract
Small heat shock proteins (sHsps) are a ubiquitous family of molecular chaperones that rescue misfolded proteins from irreversible aggregation during cellular stress. Many such sHsps exist as large polydisperse species in solution, and a rapid dynamic subunit exchange between oligomeric and dissociated forms modulates their function under a variety of stress conditions. Here, we investigated the structural and functional properties of Hsp20 from thermoacidophilic crenarchaeon Sulfolobus acidocaldarius. To provide a framework for investigating the structure-function relationship of Hsp20 and understanding its dynamic nature, we employed several biophysical and biochemical techniques. Our data suggested the existence of a ~24-mer of Hsp20 at room temperature (25 °C) and a higher oligomeric form at higher temperature (50 °C-70 °C) and lower pH (3.0-5.0). To our surprise, we identified a dimeric form of protein as the functional conformation in the presence of aggregating substrate proteins. The hydrophobic microenvironment mainly regulates the oligomeric plasticity of Hsp20, and it plays a key role in the protection of stress-induced protein aggregation. In Sulfolobus sp., Hsp20, despite being a non-secreted protein, has been reported to be present in secretory vesicles and it is still unclear whether it stabilizes substrate proteins or membrane lipids within the secreted vesicles. To address such an issue, we tested the ability of Hsp20 to interact with membrane lipids along with its ability to modulate membrane fluidity. Our data revealed that Hsp20 interacts with membrane lipids via a hydrophobic interaction and it lowers the propensity of in vitro phase transition of bacterial and archaeal lipids.
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Affiliation(s)
- Mousam Roy
- Department of Biochemistry, Bose Institute, Centenary Campus, P 1/12, C. I. T. Road, Scheme - VIIM, Kolkata 700054, West Bengal, India
| | - Sayandeep Gupta
- Department of Biochemistry, Bose Institute, Centenary Campus, P 1/12, C. I. T. Road, Scheme - VIIM, Kolkata 700054, West Bengal, India
| | - Somi Patranabis
- Department of Biochemistry, Bose Institute, Centenary Campus, P 1/12, C. I. T. Road, Scheme - VIIM, Kolkata 700054, West Bengal, India
| | - Abhrajyoti Ghosh
- Department of Biochemistry, Bose Institute, Centenary Campus, P 1/12, C. I. T. Road, Scheme - VIIM, Kolkata 700054, West Bengal, India.
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27
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Eckley DM, Coletta CE, Orlov NV, Wilson MA, Iser W, Bastian P, Lehrmann E, Zhang Y, Becker KG, Goldberg IG. Transcriptome States Reflect Imaging of Aging States. J Gerontol A Biol Sci Med Sci 2018; 73:893-901. [PMID: 29216338 DOI: 10.1093/gerona/glx236] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 11/22/2017] [Indexed: 01/09/2023] Open
Abstract
In this study, we describe a morphological biomarker that detects multiple discrete subpopulations (or "age-states") at several chronological ages in a population of nematodes (Caenorhabditis elegans). We determined the frequencies of three healthy adult states and the timing of the transitions between them across the lifespan. We used short-lived and long-lived strains to confirm the general applicability of the state classifier and to monitor state progression. This exploration revealed healthy and unhealthy states, the former being favored in long-lived strains and the latter showing delayed onset. Short-lived strains rapidly transitioned through the putative healthy state. We previously found that age-matched animals in different age-states have distinct transcriptome profiles. We isolated animals at the beginning and end of each identified state and performed microarray analysis (principal component analysis, relative sample to sample distance measurements, and gene set enrichment analysis). In some comparisons, chronologically identical individuals were farther apart than morphologically identical individuals isolated on different days. The age-state biomarker allowed assessment of aging in a novel manner, complementary to chronological age progression. We found hsp70 and some small heat shock protein genes are expressed later in adulthood, consistent with the proteostasis collapse model.
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Affiliation(s)
- D Mark Eckley
- Laboratory of Genetics and Genomics, Biomedical Research Center, Baltimore, Maryland
| | - Christopher E Coletta
- Laboratory of Genetics and Genomics, Biomedical Research Center, Baltimore, Maryland
| | - Nikita V Orlov
- Laboratory of Genetics and Genomics, Biomedical Research Center, Baltimore, Maryland
| | - Mark A Wilson
- Laboratory of Neuroscience, Biomedical Research Center, Baltimore, Maryland
| | - Wendy Iser
- Laboratory of Neuroscience, Biomedical Research Center, Baltimore, Maryland
| | - Paul Bastian
- Laboratory of Genetics and Genomics, Biomedical Research Center, Baltimore, Maryland
| | - Elin Lehrmann
- Laboratory of Genetics and Genomics, Biomedical Research Center, Baltimore, Maryland
| | - Yonqing Zhang
- Laboratory of Genetics and Genomics, Biomedical Research Center, Baltimore, Maryland
| | - Kevin G Becker
- Laboratory of Genetics and Genomics, Biomedical Research Center, Baltimore, Maryland
| | - Ilya G Goldberg
- Laboratory of Genetics and Genomics, Biomedical Research Center, Baltimore, Maryland.,Mindshare Medical, Inc., Baltimore, Maryland
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la Peña Sol D, Isela SR, Zendy OV, Mónica NM, Irene XR, Omar AH. Changes in trophoblasts gene expression in response to perchlorate exposition. Toxicol In Vitro 2018; 50:328-335. [PMID: 29673971 DOI: 10.1016/j.tiv.2018.04.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 03/19/2018] [Accepted: 04/12/2018] [Indexed: 10/17/2022]
Abstract
Contaminated water with chlorates is a public health problem associated with iodine deficiency. Epidemiological evidence shows that iodine deficiency is a risk factor for preeclampsia (PE). In this study we use human BeWo trophoblast cells exposed to perchlorate (KClO4) and changes in gene expression were analyzed by microarrays, quantitative RT-PCR (qRT-PCR) and immunoblot. The microarray analysis identified 48 transcripts up-regulated and 112 down-regulated in comparison with non-exposed trophoblast. The qRT-PCR analysis confirmed changes in GAS7, PKP2, Emilin, Dynatic 3, protocadherins 11, 15, gamma A12, EGFR, SAFB1, ACE2, ANXA2, Apoliprotein E, SREBF1, and C/EBP-β. KClO4 exposition decreased the mRNA and protein of C/EBP-β and GPX4. Also, we observed a nuclear translocation of HIF1α protein, and increase in both Snail and ACE2 protein by immunoblot. These effects were accompanied by an increases in ROS and nitric oxide. In conclusion, our results show that exposure to KClO4 alters genes involved in migration, adhesion, differentiation, and correlate with the increase of oxidative stress and nitric oxide production in trophoblast cells. It is possible that iodine deficiency is associated with these processes. However, further studies are required to corroborate the role of iodine in trophoblast cells.
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Affiliation(s)
- De la Peña Sol
- Laboratorio de Investigación Clínica, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas S/N Ciudad Universitaria Sur, col. La Haciendita, Chilpancingo, Guerrero ZC 39087, Mexico
| | - Santiago-Roque Isela
- Facultad de Bioanálisis, Universidad Veracruzana. Odontólogos W/N, U.H. del Bosque, Xalapa, Veracruz, Mexico
| | - Olivo-Vidal Zendy
- Ecology and Health Laboratory, Public Health Institute, Universidad Veracruzana, Av. Luís Castelazo Ayala W/N, Col. Industrial Animas, Xalapa, Veracruz ZC 41190, Mexico
| | - Navarro-Meza Mónica
- Centro Universitario del Sur., Av. Enrique Arreola Silva no. 883, Col. Centro, Ciudad Guzmán, Jalisco ZC 49000, Mexico
| | - Xochihua-Rosas Irene
- Facultad de Idiomas, Universidad Veracruzana, Francisco Moreno esq. E. Alatriste S/N, col. Ferrer Guardia, Xalapa, Veracruz ZC91020, Mexico
| | - Arroyo-Helguera Omar
- Ecology and Health Laboratory, Public Health Institute, Universidad Veracruzana, Av. Luís Castelazo Ayala W/N, Col. Industrial Animas, Xalapa, Veracruz ZC 41190, Mexico.
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29
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Manee MM, Alharbi SN, Algarni AT, Alghamdi WM, Altammami MA, Alkhrayef MN, Alnafjan BM. Molecular cloning, bioinformatics analysis, and expression of small heat shock protein beta-1 from Camelus dromedarius, Arabian camel. PLoS One 2017; 12:e0189905. [PMID: 29287083 PMCID: PMC5747437 DOI: 10.1371/journal.pone.0189905] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 12/04/2017] [Indexed: 11/18/2022] Open
Abstract
Small heat shock protein beta-1 (HSPB-1) plays an essential role in the protection of cells against environmental stress.Elucidation of its molecular, structural, and biological characteristics in a naturally wild-type model is essential. Although the sequence information of the HSPB-1 gene is available for many mammalian species, the HSPB-1 gene of Arabian camel (Arabian camel HSPB-1) has not yet been structurally characterized. We cloned and functionally characterized a full-length of Arabian camel HSPB-1 cDNA. It is 791 bp long, with a 5′-untranslated region (UTR) of 34 bp, a 3′-UTR of 151 bp with a poly(A) tail, and an open reading frame (ORF) of 606 bp encoding a protein of 201 amino acids (accession number: MF278354). The tissue-specific expression analysis of Arabian camel HSPB-1 mRNA was examined using quantitative real-time PCR (qRT-PCR); which suggested that Arabian camel HSPB-1 mRNA was constitutionally expressed in all examined tissues of Arabian camel, with the predominately level in the esophagus tissue. Peptide mass fingerprint-mass spectrometry (PMF-MS) analysis of the purified Arabian camel HSPB-1 protein confirmed the identity of this protein. Phylogenetic analysis showed that the HSPB-1 protein of Arabian camel is grouped together with those of Bactrian camel and Alpaca. Comparing the modelled 3D structure of Arabian camel HSPB-1 protein with the available protein 3D structure of HSPB-1 from human confirmed the presence of α-crystallin domain, and high similarities were noted between the two structures by using super secondary structure prediction.
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Affiliation(s)
- Manee M. Manee
- National Center for Genomic Technology, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
- Center of Excellence for Genomics (CEG), King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Sultan N. Alharbi
- Center of Excellence for Genomics (CEG), King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
- National Center for Stem Cell Technology, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
- * E-mail:
| | - Abdulmalek T. Algarni
- National Center for Genomic Technology, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
- Center of Excellence for Genomics (CEG), King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Waleed M. Alghamdi
- Institute of Innovation and Industrial Development, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Musaad A. Altammami
- National Center for Biotechnology, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Mohammad N. Alkhrayef
- National Center for Stem Cell Technology, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Basel M. Alnafjan
- National Center for Stem Cell Technology, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
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Hollmann T, Kim TK, Tirloni L, Radulović ŽM, Pinto AFM, Diedrich JK, Yates JR, da Silva Vaz I, Mulenga A. Identification and characterization of proteins in the Amblyomma americanum tick cement cone. Int J Parasitol 2017; 48:211-224. [PMID: 29258831 DOI: 10.1016/j.ijpara.2017.08.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 08/26/2017] [Indexed: 01/08/2023]
Abstract
The adaptation of hard ticks to feed for long periods is facilitated by the cement cone, which securely anchors the tick mouthparts onto host skin and protects the tick from being groomed off by the host. Thus, preventing tick cement deposition is an attractive target for the development of innovative tick control. We used LC-MS/MS sequencing to identify 160 Amblyomma americanum tick cement proteins that include glycine-rich proteins (GRP, 19%), protease inhibitors (12%), proteins of unknown function (11%), mucin (4%), detoxification, storage, and lipocalin at 1% each, and housekeeping proteins (50%). Spatiotemporal transcription analysis showing mRNA expression in multiple tick organs and transcript abundance increasing with feeding suggest that selected GRPs (n = 13) regulate multiple tick feeding functions, being classified as constitutively expressed (CE), feeding induced (FI), and up-regulated with feeding (UR). We show that transcription of CE GRPs is likely under the control of tick appetence associated factors in that mRNA abundance increased several thousand fold in 1 week old adult ticks, the time period that coincides with tick attainment of appetence. Given the high number of targets, we synthesized and injected unfed ticks with combinatorial (co) double stranded (ds)RNA and disrupted GRP mRNA in clusters according to similar transcription patterns: CE (n = 3), FI, (n = 4), and UR (n = 6) to streamline the work. Our data suggest that CE and FI GRPs are important for maintenance of the tick feeding site in that reddening and subsequent bleeding were observed around the mouthparts of CE and FI GRP co-dsRNA injected ticks during feeding. Furthermore, although not significantly different, indices for blood meal size and fecundity were apparently reduced in FI and UR ticks. We discuss our data with reference to A. americanum tick feeding physiology.
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Affiliation(s)
- Taylor Hollmann
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, TX, USA
| | - Tae Kwon Kim
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, TX, USA
| | - Lucas Tirloni
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, TX, USA; Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Željko M Radulović
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, TX, USA
| | - Antônio F M Pinto
- Centro de Pesquisas em Biologia Molecular e Funcional, Instituto Nacional de Ciência e Tecnologia em Tuberculose (INCT-TB), Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil; Department of Chemical Physiology, The Scripps Research Institute, La Jolla, CA, USA; Mass Spectrometry Core, Salk Institute for Biological Studies, La Jolla, CA, USA
| | - Jolene K Diedrich
- Department of Chemical Physiology, The Scripps Research Institute, La Jolla, CA, USA; Mass Spectrometry Core, Salk Institute for Biological Studies, La Jolla, CA, USA
| | - John R Yates
- Department of Chemical Physiology, The Scripps Research Institute, La Jolla, CA, USA
| | - Itabajara da Silva Vaz
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Albert Mulenga
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, TX, USA.
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31
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RNA polymerase II pausing and transcriptional regulation of the HSP70 expression. Eur J Cell Biol 2017; 96:739-745. [DOI: 10.1016/j.ejcb.2017.09.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 08/16/2017] [Accepted: 09/25/2017] [Indexed: 12/20/2022] Open
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Jena R, Garg DK, Choudhury L, Saini A, Kundu B. Heterologous expression of an engineered protein domain acts as chaperone and enhances thermotolerance of Escherichia coli. Int J Biol Macromol 2017; 107:2086-2093. [PMID: 29042276 DOI: 10.1016/j.ijbiomac.2017.10.081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 10/11/2017] [Accepted: 10/13/2017] [Indexed: 11/29/2022]
Abstract
Heat shock proteins (HSPs) are known to confer protection to the stressed cells by rescuing vital host cell proteins. In the present study we have demonstrated that heterologous expression of N-terminal domain of hyperthermophilic L-asparaginase (NPfA) confers thermotolerance to E. coli. The recombinant expression of NPfA enabled E. coli to demonstrate typical growth behavior at 52°C and survive a thermal shock up to 62°C, both being the highest reported temperatures for growth and heat shock survival. To understand the basis of protection proteome analysis of these cells was carried out which showed that NPfA guards a battery of proteins, especially related to gene regulations and repair, providing definite survival advantage to the stressed cells. Thus NPfA a non-canonical, non-natural chaperone has been shown to render E. coli cells with selective growth advantage under extremes of conditions. We propose that such modified, heat stabilized hosts could be utilized in developing heat-induced expression systems as well for the recombinant expression of thermophilic proteins.
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Affiliation(s)
- Rajender Jena
- Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, New Delhi, 110016, India
| | - Dushyant K Garg
- Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, New Delhi, 110016, India; School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Lipsa Choudhury
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, New Delhi, 110075, India
| | - Akanksha Saini
- Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, New Delhi, 110016, India
| | - Bishwajit Kundu
- Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, New Delhi, 110016, India.
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Jin Y, Yang S, Im S, Jeong WJ, Park E, Choi DW. Overexpression of the Small Heat Shock Protein, PtsHSP19.3 from Marine Red Algae, Pyropia tenera (Bangiales, Rhodophyta) Enhances Abiotic Stress Tolerance in Chlamydomonas. ACTA ACUST UNITED AC 2017. [DOI: 10.5010/jpb.2017.44.3.287] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Yujin Jin
- Department of Biology Education and Kumho Life Science Laboratory, Chonnam National University, Gwangju, 61186, Korea
| | - Sungwhan Yang
- Department of Biology Education and Kumho Life Science Laboratory, Chonnam National University, Gwangju, 61186, Korea
| | - Sungoh Im
- Department of Biology Education and Kumho Life Science Laboratory, Chonnam National University, Gwangju, 61186, Korea
| | - Won-Joong Jeong
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Korea
| | - EunJeong Park
- Seaweed Research Center, National Fisheries Research and Development Institute, Mokpo, 58746, Korea
| | - Dong-Woog Choi
- Department of Biology Education and Kumho Life Science Laboratory, Chonnam National University, Gwangju, 61186, Korea
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Ogbaga CC, Stepien P, Athar HUR, Ashraf M. Engineering Rubisco activase from thermophilic cyanobacteria into high-temperature sensitive plants. Crit Rev Biotechnol 2017; 38:559-572. [DOI: 10.1080/07388551.2017.1378998] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Chukwuma C. Ogbaga
- Department of Biological Sciences, Nile University of Nigeria, Abuja, Nigeria
| | - Piotr Stepien
- Department of Plant Nutrition, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
| | - Habib-Ur-Rehman Athar
- Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, Pakistan
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Ezemaduka AN, Wang Y, Li X. Expression of CeHSP17 Protein in Response to Heat Shock and Heavy Metal Ions. J Nematol 2017; 49:334-340. [PMID: 29062158 PMCID: PMC5644928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Indexed: 06/07/2023] Open
Abstract
Small heat shock proteins (sHSP) are ubiquitously found in all organisms, and with other heat shock proteins (HSP) such as HSP60, HSP70, HSP90, HSP100 made up the molecular chaperone family. They are involved in a wide range of biological processes which include among others cell resistance to biological and environmental stress conditions. In this study, we show by western blotting that CeHSP17, an sHSP of Caenorhabiditis elegans, is significantly induced by high temperatures. Furthermore, in response to metal stress, the CeHSP17 protein expression was significantly induced by cadmium and zinc at high concentration of clearly cytotoxic range in wild-type C. elegans. Altogether, our results show the involvement of CeHSP17 protein in both environmental and biological stresses in C. elegans and establish for the first time the expression pattern of the CeHSP17 protein in response to thermal and metal stress conditions in C. elegans. The responses of CeHSP17 protein expression may serve as potential sensitive biomarker for metal-induced toxicity monitoring and environmental risk assessment.
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Affiliation(s)
- Anastasia N Ezemaduka
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China
| | - Yunbiao Wang
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China
| | - Xiujun Li
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China
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Abstract
The heat shock response is crucial for organisms against heat-damaged proteins and maintaining homeostasis at a high temperature. Heterologous expression of eukaryotic molecular chaperones protects Escherichia coli from heat stress. Here we report that expression of the plant E3 ligase BnTR1 significantly increases the thermotolerance of E. coli. Different from eukaryotic chaperones, BnTR1 expression induces the accumulation of heat shock factor σ32 and heat shock proteins. The active site of BnTR1 in E. coli is the zinc fingers of the RING domain, which interacts with DnaK resulting in stabilizing σ32. Our findings indicate the expression of BnTR1 confers thermoprotective effects on E. coli cells, and it may provide useful clues to engineer thermophilic bacterial strains.
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Moutaoufik MT, Morrow G, Finet S, Tanguay RM. Effect of N-terminal region of nuclear Drosophila melanogaster small heat shock protein DmHsp27 on function and quaternary structure. PLoS One 2017; 12:e0177821. [PMID: 28520783 PMCID: PMC5433770 DOI: 10.1371/journal.pone.0177821] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 05/03/2017] [Indexed: 01/12/2023] Open
Abstract
The importance of the N-terminal region (NTR) in the oligomerization and chaperone-like activity of the Drosophila melanogaster small nuclear heat shock protein DmHsp27 was investigated by mutagenesis using size exclusion chromatography and native gel electrophoresis. Mutation of two sites of phosphorylation in the N-terminal region, S58 and S75, did not affect the oligomerization equilibrium or the intracellular localization of DmHsp27 when transfected into mammalian cells. Deletion or mutation of specific residues within the NTR region delineated a motif (FGFG) important for the oligomeric structure and chaperone-like activity of this sHsp. While deletion of the full N-terminal region, resulted in total loss of chaperone-like activity, removal of the (FGFG) at position 29 to 32 or single mutation of F29A/Y, G30R and G32R enhanced oligomerization and chaperoning capacity under non-heat shock conditions in the insulin assay suggesting the importance of this site for chaperone activity. Unlike mammalian sHsps DmHsp27 heat activation leads to enhanced association of oligomers to form large structures of approximately 1100 kDa. A new mechanism of thermal activation for DmHsp27 is presented.
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Affiliation(s)
- Mohamed Taha Moutaoufik
- Laboratoire de génétique cellulaire et développementale, Département de biologie moléculaire, biochimie médicale et pathologie, Institut de biologie intégrative et des systèmes (IBIS) and PROTEO, Université Laval, Québec, Canada
| | - Geneviève Morrow
- Laboratoire de génétique cellulaire et développementale, Département de biologie moléculaire, biochimie médicale et pathologie, Institut de biologie intégrative et des systèmes (IBIS) and PROTEO, Université Laval, Québec, Canada
| | - Stéphanie Finet
- IMPMC UMR7590, CNRS, UPMC Paris 6, 4 place Jussieu, Paris, France
| | - Robert M. Tanguay
- Laboratoire de génétique cellulaire et développementale, Département de biologie moléculaire, biochimie médicale et pathologie, Institut de biologie intégrative et des systèmes (IBIS) and PROTEO, Université Laval, Québec, Canada
- * E-mail:
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Wang HJ, Shi ZK, Shen QD, Xu CD, Wang B, Meng ZJ, Wang SG, Tang B, Wang S. Molecular Cloning and Induced Expression of Six Small Heat Shock Proteins Mediating Cold-Hardiness in Harmonia axyridis (Coleoptera: Coccinellidae). Front Physiol 2017; 8:60. [PMID: 28232804 PMCID: PMC5299025 DOI: 10.3389/fphys.2017.00060] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 01/23/2017] [Indexed: 12/18/2022] Open
Abstract
The main function of small heat shock proteins (sHSPs) as molecular chaperones is to protect proteins from denaturation under adverse conditions. Molecular and physiological data were used to examine the sHSPs underlying cold-hardiness in Harmonia axyridis. Complementary DNA sequences were obtained for six H. axyridis sHSPs based on its transcriptome, and the expression of the genes coding for these sHSPs was evaluated by quantitative real-time PCR (qRT-PCR) in several developmental stages, under short-term cooling or heating conditions, and in black and yellow females of experimental and overwintering populations under low-temperature storage. In addition, we measured water content and the super cooling and freezing points (SCP and FP, respectively) of H. axyridis individuals from experimental and overwintering populations. The average water content was not significantly different between adults of both populations, but the SCP and FP of the overwintering population were significantly lower than that of the experimental population. Overall, the six sHSPs genes showed different expression patterns among developmental stages. In the short-term cooling treatment, Hsp16.25 and Hsp21.00 expressions first increased and then decreased, while Hsp10.87 and Hsp21.56 expressions increased during the entire process. Under short-term heating, the expressions of Hsp21.00, Hsp21.62, Hsp10.87, and Hsp16.25 showed an increasing trend, whereas Hsp36.77 first decreased and then increased. Under low-temperature storage conditions, the expression of Hsp36.77 decreased, while the expressions of Hsp21.00 and Hsp21.62 were higher than that of the control group in the experimental population. The expression of Hsp36.77 first increased and then decreased, whereas Hsp21.56 expression was always higher than that of the control group in the overwintering population. Thus, differences in sHSPs gene expression were correlated with the H. axyridis forms, suggesting that the mechanism of cold resistance might differ among them. Although, Hsp36.77, Hsp16.25, Hsp21.00, and Hsp21.62 regulated cold- hardiness, the only significant differences between overwintering and experimental populations were found for Hsp16.25 and Hsp21.00.
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Affiliation(s)
- Hui-Juan Wang
- College of Life and Environmental Sciences, Hangzhou Normal UniversityHangzhou, China
| | - Zuo-Kun Shi
- College of Life and Environmental Sciences, Hangzhou Normal UniversityHangzhou, China
| | - Qi-Da Shen
- College of Life and Environmental Sciences, Hangzhou Normal UniversityHangzhou, China
| | - Cai-Di Xu
- College of Life and Environmental Sciences, Hangzhou Normal UniversityHangzhou, China
| | - Bing Wang
- Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry SciencesBeijing, China
| | - Zhao-Jun Meng
- College of Forestry, Northeast Forestry UniversityHarbin, China
| | - Shi-Gui Wang
- College of Life and Environmental Sciences, Hangzhou Normal UniversityHangzhou, China
| | - Bin Tang
- College of Life and Environmental Sciences, Hangzhou Normal UniversityHangzhou, China
| | - Su Wang
- Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry SciencesBeijing, China
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The Role of Heat Shock Proteins in Response to Extracellular Stress in Aquatic Organisms. HEAT SHOCK PROTEINS 2017. [DOI: 10.1007/978-3-319-73377-7_9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Lai KH, Liu YC, Su JH, El-Shazly M, Wu CF, Du YC, Hsu YM, Yang JC, Weng MK, Chou CH, Chen GY, Chen YC, Lu MC. Antileukemic Scalarane Sesterterpenoids and Meroditerpenoid from Carteriospongia (Phyllospongia) sp., Induce Apoptosis via Dual Inhibitory Effects on Topoisomerase II and Hsp90. Sci Rep 2016; 6:36170. [PMID: 27796344 PMCID: PMC5086919 DOI: 10.1038/srep36170] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 10/07/2016] [Indexed: 01/24/2023] Open
Abstract
Two new scalarane sesterterpenoids, 12β-(3′β-hydroxybutanoyloxy)-20,24-dimethyl-24-oxo-scalara-16-en-25-al (1) and 12β-(3′β-hydroxypentanoyloxy)-20,24-dimethyl-24-oxo-scalara-16-en-25-al (2), along with one known tetraprenyltoluquinol-related metabolite (3), were isolated from the sponge Carteriospongia sp. In leukemia Molt 4 cells, 1 at 0.0625 μg/mL (125 nM) triggered mitochondrial membrane potential (MMP) disruption and apoptosis showing more potent effect than 2 and 3. The isolates inhibited topoisomerase IIα expression. The apoptotic-inducing effect of 3 was supported by the in vivo experiment through suppressing the volume of xenograft tumor growth (47.58%) compared with the control. Compound 1 apoptotic mechanism of action in Molt 4 cells was further elucidated through inducing ROS generation, calcium release and ER stress. Using the molecular docking analysis, 1 exhibited more binding affinity to N-terminal ATP-binding pocket of Hsp90 protein than 17-AAG, a standard Hsp90 inhibitor. The expression of Hsp90 client proteins, Akt, p70S6k, NFκB, Raf-1, p-GSK3β, and XIAP, MDM 2 and Rb2, and CDK4 and Cyclin D3, HIF 1 and HSF1 were suppressed by the use of 1. However, the expression of Hsp70, acetylated tubulin, and activated caspase 3 were induced after 1 treatment. Our results suggested that the proapoptotic effect of the isolates is mediated through the inhibition of Hsp90 and topoisomerase activities.
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Affiliation(s)
- Kuei-Hung Lai
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung, 944, Taiwan.,National Museum of Marine Biology &Aquarium, Pingtung 944, Taiwan.,Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan.,Division of Pharmacognosy, Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden
| | - Yi-Chang Liu
- Division of Hematology-Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan.,Department of Internal Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Jui-Hsin Su
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung, 944, Taiwan.,National Museum of Marine Biology &Aquarium, Pingtung 944, Taiwan
| | - Mohamed El-Shazly
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, Ain-Shams University, Organization of African Unity Street, Abassia, Cairo 11566, Egypt
| | - Chih-Fung Wu
- Division of Surgical Oncology, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Ying-Chi Du
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung, 944, Taiwan.,National Museum of Marine Biology &Aquarium, Pingtung 944, Taiwan.,Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yu-Ming Hsu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Juan-Cheng Yang
- School of Pharmacy, College of Pharmacy, China Medical University, Taichung, Taiwan.,Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan
| | - Ming-Kai Weng
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung, 944, Taiwan
| | - Chia-Hua Chou
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung, 944, Taiwan.,National Museum of Marine Biology &Aquarium, Pingtung 944, Taiwan
| | - Guan-Yu Chen
- School of Pharmacy, College of Pharmacy, China Medical University, Taichung, Taiwan.,Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan
| | - Yu-Cheng Chen
- The Ph.D. Program for Cancer Biology and Drug Discovery, China Medical University and Academia Sinica, Taichung, Taiwan
| | - Mei-Chin Lu
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung, 944, Taiwan.,National Museum of Marine Biology &Aquarium, Pingtung 944, Taiwan
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Hu H, Zhang K, Meng X. Classification using diffraction patterns for single-particle analysis. Ultramicroscopy 2016; 164:46-50. [DOI: 10.1016/j.ultramic.2016.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 02/13/2016] [Accepted: 03/04/2016] [Indexed: 10/22/2022]
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42
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Plant Small Heat Shock Proteins and Its Interactions with Biotic Stress. HEAT SHOCK PROTEINS AND PLANTS 2016. [DOI: 10.1007/978-3-319-46340-7_2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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