1
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Palkina KA, Karataeva TA, Perfilov MM, Fakhranurova LI, Markina NM, Somermeyer LG, Garcia-Perez E, Vazquez-Vilar M, Rodriguez-Rodriguez M, Vazquez-Vilriales V, Shakhova ES, Mitiouchkina T, Belozerova OA, Kovalchuk SI, Alekberova A, Malyshevskaia AK, Bugaeva EN, Guglya EB, Balakireva A, Sytov N, Bezlikhotnova A, Boldyreva DI, Babenko VV, Kondrashov FA, Choob VV, Orzaez D, Yampolsky IV, Mishin AS, Sarkisyan KS. A hybrid pathway for self-sustained luminescence. SCIENCE ADVANCES 2024; 10:eadk1992. [PMID: 38457503 PMCID: PMC10923510 DOI: 10.1126/sciadv.adk1992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 02/01/2024] [Indexed: 03/10/2024]
Abstract
The fungal bioluminescence pathway can be reconstituted in other organisms allowing luminescence imaging without exogenously supplied substrate. The pathway starts from hispidin biosynthesis-a step catalyzed by a large fungal polyketide synthase that requires a posttranslational modification for activity. Here, we report identification of alternative compact hispidin synthases encoded by a phylogenetically diverse group of plants. A hybrid bioluminescence pathway that combines plant and fungal genes is more compact, not dependent on availability of machinery for posttranslational modifications, and confers autonomous bioluminescence in yeast, mammalian, and plant hosts. The compact size of plant hispidin synthases enables additional modes of delivery of autoluminescence, such as delivery with viral vectors.
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Affiliation(s)
- Kseniia A. Palkina
- Planta LLC, 121205 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Tatiana A. Karataeva
- Planta LLC, 121205 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Maxim M. Perfilov
- Planta LLC, 121205 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Liliia I. Fakhranurova
- Planta LLC, 121205 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Nadezhda M. Markina
- Planta LLC, 121205 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | | | - Elena Garcia-Perez
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de Valéncia, 46022 Valencia, Spain
| | - Marta Vazquez-Vilar
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de Valéncia, 46022 Valencia, Spain
| | - Marta Rodriguez-Rodriguez
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de Valéncia, 46022 Valencia, Spain
| | - Victor Vazquez-Vilriales
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de Valéncia, 46022 Valencia, Spain
| | - Ekaterina S. Shakhova
- Planta LLC, 121205 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Tatiana Mitiouchkina
- Planta LLC, 121205 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Olga A. Belozerova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Sergey I. Kovalchuk
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Anna Alekberova
- Planta LLC, 121205 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Alena K. Malyshevskaia
- Planta LLC, 121205 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | | | - Elena B. Guglya
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
- Pirogov Russian National Research Medical University, Ostrovityanova 1, Moscow 117997, Russia
| | - Anastasia Balakireva
- Planta LLC, 121205 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Nikita Sytov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | | | - Daria I. Boldyreva
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - Vladislav V. Babenko
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - Fyodor A. Kondrashov
- Okinawa Institute of Science and Technology Graduate University, Okinawa 904-0412, Japan
| | - Vladimir V. Choob
- Botanical Garden of Lomonosov Moscow State University, Vorobievy Gory 1 b.12, Moscow 119234 Russia
| | - Diego Orzaez
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de Valéncia, 46022 Valencia, Spain
| | - Ilia V. Yampolsky
- Planta LLC, 121205 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
- Pirogov Russian National Research Medical University, Ostrovityanova 1, Moscow 117997, Russia
- Light Bio Inc., Ketchum, ID, USA
| | - Alexander S. Mishin
- Planta LLC, 121205 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Karen S. Sarkisyan
- Planta LLC, 121205 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
- Light Bio Inc., Ketchum, ID, USA
- Synthetic Biology Group, MRC Laboratory of Medical Sciences, London, UK
- Institute of Clinical Sciences, Faculty of Medicine and Imperial College Centre for Synthetic Biology, Imperial College London, London, UK
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Jiang L, Liu S, Hu X, Li D, Chen L, Weng X, Zheng Z, Chen X, Zhuang J, Li X, Chen Z, Yuan M. The Impact of Photosynthetic Characteristics and Metabolomics on the Fatty Acid Biosynthesis in Tea Seeds. Foods 2023; 12:3821. [PMID: 37893714 PMCID: PMC10606020 DOI: 10.3390/foods12203821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/09/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023] Open
Abstract
The synthesis of tea fatty acids plays a crucial role in determining the oil content of tea seeds and selecting tea tree varieties suitable for harvesting both leaves and fruits. However, there is limited research on fatty acid synthesis in tea trees, and the precise mechanisms influencing tea seed oil content remain elusive. To reveal the fatty acid biosynthesis mechanism, we conducted a photosynthetic characteristic and targeted metabolomics analysis in comparison between Jincha 2 and Wuniuzao cultivars. Our findings revealed that Jincha 2 exhibited significantly higher net photosynthetic rates (Pn), stomatal conductance (Gs), and transpiration rate (Tr) compared with Wuniuzao, indicating the superior photosynthetic capabilities of Jincha 2. Totally, we identified 94 metabolites with significant changes, including key hormone regulators such as gibberellin A1 (GA1) and indole 3-acetic acid (IAA). Additionally, linolenic acid, methyl dihydrojasmonate, and methylthiobutyric acid, precursors required for fatty acid synthesis, were significantly more abundant in Jincha 2 compared with Wuniuzao. In summary, our research suggests that photosynthetic rates and metabolites contribute to the increased yield, fatty acid synthesis, and oil content observed in Jincha 2 when compared with Wuniuzao.
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Affiliation(s)
- Li Jiang
- Jinhua Academy of Agricultural Sciences, Jinhua 321017, China; (L.J.); (X.H.); (D.L.); (L.C.); (X.W.); (Z.Z.)
| | - Shujing Liu
- International Institute of Tea Industry Innovation for the Belt and Road, Nanjing Agricultural University, Nanjing 210095, China; (X.C.); (J.Z.); (X.L.)
| | - Xinrong Hu
- Jinhua Academy of Agricultural Sciences, Jinhua 321017, China; (L.J.); (X.H.); (D.L.); (L.C.); (X.W.); (Z.Z.)
| | - Duojiao Li
- Jinhua Academy of Agricultural Sciences, Jinhua 321017, China; (L.J.); (X.H.); (D.L.); (L.C.); (X.W.); (Z.Z.)
| | - Le Chen
- Jinhua Academy of Agricultural Sciences, Jinhua 321017, China; (L.J.); (X.H.); (D.L.); (L.C.); (X.W.); (Z.Z.)
| | - Xiaoxing Weng
- Jinhua Academy of Agricultural Sciences, Jinhua 321017, China; (L.J.); (X.H.); (D.L.); (L.C.); (X.W.); (Z.Z.)
| | - Zhaisheng Zheng
- Jinhua Academy of Agricultural Sciences, Jinhua 321017, China; (L.J.); (X.H.); (D.L.); (L.C.); (X.W.); (Z.Z.)
| | - Xuan Chen
- International Institute of Tea Industry Innovation for the Belt and Road, Nanjing Agricultural University, Nanjing 210095, China; (X.C.); (J.Z.); (X.L.)
| | - Jing Zhuang
- International Institute of Tea Industry Innovation for the Belt and Road, Nanjing Agricultural University, Nanjing 210095, China; (X.C.); (J.Z.); (X.L.)
| | - Xinghui Li
- International Institute of Tea Industry Innovation for the Belt and Road, Nanjing Agricultural University, Nanjing 210095, China; (X.C.); (J.Z.); (X.L.)
| | - Zhengdao Chen
- Zhejiang Cultivated Land Quality and Fertilizer Management Station, Hangzhou 310020, China;
| | - Mingan Yuan
- Jinhua Academy of Agricultural Sciences, Jinhua 321017, China; (L.J.); (X.H.); (D.L.); (L.C.); (X.W.); (Z.Z.)
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Zhou Y, Yu H, Tang Y, Chen R, Luo J, Shi C, Tang S, Li X, Shen X, Chen R, Zhang Y, Lu Y, Ye Z, Guo L, Ouyang B. Critical roles of mitochondrial fatty acid synthesis in tomato development and environmental response. PLANT PHYSIOLOGY 2022; 190:576-591. [PMID: 35640121 PMCID: PMC9434154 DOI: 10.1093/plphys/kiac255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 04/28/2022] [Indexed: 05/30/2023]
Abstract
Plant mitochondrial fatty acid synthesis (mtFAS) appears to be important in photorespiration based on the reverse genetics research from Arabidopsis (Arabidopsis thaliana) in recent years, but its roles in plant development have not been completely explored. Here, we identified a tomato (Solanum lycopersicum) mutant, fern-like, which displays pleiotropic phenotypes including dwarfism, yellowing, curly leaves, and increased axillary buds. Positional cloning and genetic and heterozygous complementation tests revealed that the underlying gene FERN encodes a 3-hydroxyl-ACP dehydratase enzyme involved in mtFAS. FERN was causally involved in tomato morphogenesis by affecting photorespiration, energy supply, and the homeostasis of reactive oxygen species. Based on lipidome data, FERN and the mtFAS pathway may modulate tomato development by influencing mitochondrial membrane lipid composition and other lipid metabolic pathways. These findings provide important insights into the roles and importance of mtFAS in tomato development.
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Affiliation(s)
- Yuhong Zhou
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan 430070, China
| | - Huiyang Yu
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan 430070, China
| | - Yaping Tang
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan 430070, China
| | - Rong Chen
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan 430070, China
| | - Jinying Luo
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan 430070, China
| | - Chunmei Shi
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan 430070, China
| | - Shan Tang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Xin Li
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan 430070, China
| | - Xinyan Shen
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan 430070, China
| | - Rongfeng Chen
- National Center for Occupational Safety and Health, NHC, Beijing 102308, China
| | - Yuyang Zhang
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan 430070, China
| | - Yongen Lu
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan 430070, China
| | - Zhibiao Ye
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan 430070, China
| | - Liang Guo
- Author for correspondence: (B.O.), (L.G.)
| | - Bo Ouyang
- Author for correspondence: (B.O.), (L.G.)
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Venter L, Alfaro AC, Van Nguyen T, Lindeque JZ. Metabolite profiling of abalone (Haliotis iris) energy metabolism: a Chatham Islands case study. Metabolomics 2022; 18:52. [PMID: 35829802 PMCID: PMC9279229 DOI: 10.1007/s11306-022-01907-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 06/15/2022] [Indexed: 11/09/2022]
Abstract
INTRODUCTION The Chatham Islands has some of the most prized black-footed abalone (Haliotis iris) beds in New Zealand. This well-managed fishery includes restrictions on catch and size limits, selective fishing methods, and shellfish management. However, recent declines in biomass and growth parameters have prompted omics research to characterise the biological responses of abalone, potentially contributing towards animal management strategies. OBJECTIVES The aim of this study was to characterise the metabolite profiles of slow and fast growing, juvenile and adult abalone, relating to metabolites supporting energy metabolism. METHODS A gas chromatography-mass spectrometry metabolite profiling, applying methyl chloroformate alkylation, was performed on juvenile and adult abalone samples collected from Point Durham and Wharekauri sites, Chatham Islands, New Zealand. RESULTS The results obtained from haemolymph and muscle samples indicated that abalone from the fast-growing area, Wharekauri, fuelled metabolic functions via carbohydrate sources, providing energy for fatty acid and amino acid synthesis. Conversely, higher amino acid levels were largely utilised to promote growth in this population. The metabolism of juvenile abalone favoured anabolism, where metabolites were diverted from glycolysis and the tricarboxylic acid cycle, and used for the production of nucleotides, amino acids and fatty acids. CONCLUSIONS This research provides unique physiological insights towards abalone populations supporting the use of metabolomics as a tool to investigate metabolic processes related to growth. This work sets the stage for future work aimed at developing biomarkers for growth and health monitoring to support a growing and more sustainably abalone fishery.
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Affiliation(s)
- Leonie Venter
- Aquaculture Biotechnology Research Group, Department of Environmental Science, School of Science, Auckland University of Technology, Private Bag 92006, Auckland, 1142, New Zealand
| | - Andrea C Alfaro
- Aquaculture Biotechnology Research Group, Department of Environmental Science, School of Science, Auckland University of Technology, Private Bag 92006, Auckland, 1142, New Zealand.
| | - Thao Van Nguyen
- Aquaculture Biotechnology Research Group, Department of Environmental Science, School of Science, Auckland University of Technology, Private Bag 92006, Auckland, 1142, New Zealand
- NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Jeremie Zander Lindeque
- Human Metabolomics, North West University, Potchefstroom Campus, Private Bag X 6001, Potchefstroom, 2520, South Africa
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Li B, Zheng L, Wang R, Xue C, Shen R, Lan P. A proteomic analysis of Arabidopsis ribosomal phosphoprotein P1A mutant. J Proteomics 2022; 262:104594. [PMID: 35483651 DOI: 10.1016/j.jprot.2022.104594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 04/04/2022] [Accepted: 04/11/2022] [Indexed: 11/25/2022]
Abstract
Ribosomal proteins are involved in the regulation of plant growth and development. However, the regulatory processes of most ribosomal proteins remain unclear. In this study, Arabidopsis plants with the mutation in ribosomal phosphoprotein P1A (RPP1A) produce larger and heavier seeds than wild-type plants. A comparative quantitative label-free proteomic analysis revealed that a total of 215 proteins were differentially accumulated between the young siliques of the wild type and rpp1a mutant. Knockout of RPP1A significantly reduced the abundance of proteins involved in carboxylic acid metabolism and lipid biosynthesis. Consistent with this, a metabolic analysis showed that the organic acids in the tricarboxylic acid cycle and the carbohydrates in the pentose phosphate pathway were severely reduced in the mature rpp1a mutant seeds. In contrast, the abundance of proteins related to seed maturation, especially seed storage proteins, was markedly increased during seed development. Indeed, seed storage proteins were accumulated in the mature rpp1a mutant seeds, and the seed nitrogen and sulfur contents were also increased. These results indicate that more carbon intermediates probably enter the nitrogen flow for the enhanced synthesis of seed storage proteins, which might subsequently contribute to the enlarged seed size in the rpp1a mutant. SIGNIFICANCE: Ribosomes are responsible for protein synthesis and are generally perceived as the housekeeping components in the cells. In this study, the knockout of RPP1A leads to an increased seed size through repressing carbon metabolism and lipid biosynthesis, and increasing the synthesis of seed storage proteins. Meanwhile, the abundance of seed storage proteins and the nitrogen and sulfur concentrations were increased in the mature rpp1a mutant seeds. The results provide a novel insight into the genetic regulatory networks for the control of seed size and seed storage protein accumulation, and this knowledge may facilitate the improvement of crop seed size.
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Affiliation(s)
- Bingjuan Li
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Lu Zheng
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
| | - Ruonan Wang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Caiwen Xue
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Renfang Shen
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Ping Lan
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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He W, Fang X, Lu X, Liu Y, Li G, Zhao Z, Li J, Yang R. Function Identification of Bovine ACSF3 Gene and Its Association With Lipid Metabolism Traits in Beef Cattle. Front Vet Sci 2022; 8:766765. [PMID: 35071379 PMCID: PMC8770830 DOI: 10.3389/fvets.2021.766765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 12/13/2021] [Indexed: 11/24/2022] Open
Abstract
Acyl-CoA synthetase family member 3 (ACSF3) carries out the first step of mitochondrial fatty acid synthesis II, which is the linkage of malonate and, to a lesser extent, methylmalonate onto CoA. Malonyl-coenzyme A (malonyl-CoA) is a central metabolite in mammalian fatty acid biochemistry that is generated and utilized in the cytoplasm. In this research, we verified the relationship between expression of the ACSF3 and the production of triglycerides (TGs) at the cellular level by silencing and over-expressing ACSF3. Subsequently, through Sanger sequencing, five polymorphisms were found in the functional domain of the bovine ACSF3, and the relationship between ACSF3 polymorphism and the economic traits and fatty acid composition of Chinese Simmental cattle was analyzed by a means of variance analysis and multiple comparison. The results illustrated that the expression of ACSF3 promoted triglyceride synthesis in bovine mammary epithelial cells and bovine fetal fibroblast cells. Further association analysis also indicated that individuals with the AG genotype (g.14211090 G > A) of ACSF3 were significantly associated with the fatty acid composition of intramuscular fat (higher content of linoleic acid, α-linolenic acid, and arachidonic acid), and that CTCAG haplotype individuals were significantly related to the fatty acid composition of intramuscular fat (higher linoleic acid content). Individuals with the AA genotypes of g.14211055 A > G and g.14211090 G > A were substantially associated with a larger eye muscle area in the Chinese Simmental cattle population. ACSF3 played a pivotal role in the regulation of cellular triacylglycerol and long-chain polyunsaturated fatty acid levels, and polymorphism could serve as a useful molecular marker for future marker-assisted selection in the breeding of intramuscular fat deposition traits in beef cattle.
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Affiliation(s)
- Wei He
- College of Animal Science, Jilin University, Changchun, China
| | - Xibi Fang
- College of Animal Science, Jilin University, Changchun, China
| | - Xin Lu
- College of Animal Science, Jilin University, Changchun, China
| | - Yue Liu
- College of Animal Science, Jilin University, Changchun, China
| | - Guanghui Li
- College of Animal Science, Jilin University, Changchun, China
| | - Zhihui Zhao
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Junya Li
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Runjun Yang
- College of Animal Science, Jilin University, Changchun, China
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Martins-Noguerol R, Acket S, Troncoso-Ponce MA, Garcés R, Thomasset B, Venegas-Calerón M, Salas JJ, Martínez-Force E, Moreno-Pérez AJ. Characterization of Helianthus annuus Lipoic Acid Biosynthesis: The Mitochondrial Octanoyltransferase and Lipoyl Synthase Enzyme System. FRONTIERS IN PLANT SCIENCE 2021; 12:781917. [PMID: 34868183 PMCID: PMC8639206 DOI: 10.3389/fpls.2021.781917] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 10/26/2021] [Indexed: 05/03/2023]
Abstract
Lipoic acid (LA, 6,8-dithiooctanoic acid) is a sulfur containing coenzyme essential for the activity of several key enzymes involved in oxidative and single carbon metabolism in most bacteria and eukaryotes. LA is synthetized by the concerted activity of the octanoyltransferase (LIP2, EC 2.3.1.181) and lipoyl synthase (LIP1, EC 2.8.1.8) enzymes. In plants, pyruvate dehydrogenase (PDH), 2-oxoglutarate dehydrogenase or glycine decarboxylase are essential complexes that need to be lipoylated. These lipoylated enzymes and complexes are located in the mitochondria, while PDH is also present in plastids where it provides acetyl-CoA for de novo fatty acid biosynthesis. As such, lipoylation of PDH could regulate fatty acid synthesis in both these organelles. In the present work, the sunflower LIP1 and LIP2 genes (HaLIP1m and HaLIP2m) were isolated sequenced, cloned, and characterized, evaluating their putative mitochondrial location. The expression of these genes was studied in different tissues and protein docking was modeled. The genes were also expressed in Escherichia coli and Arabidopsis thaliana, where their impact on fatty acid and glycerolipid composition was assessed. Lipidomic studies in Arabidopsis revealed lipid remodeling in lines overexpressing these enzymes and the involvement of both sunflower proteins in the phenotypes observed is discussed in the light of the results obtained.
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Affiliation(s)
- Raquel Martins-Noguerol
- Departamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, Seville, Spain
| | - Sébastien Acket
- UPJV, UMR CNRS 7025, Enzyme and Cell Engineering, Centre de Recherche Royallieu, Université de Technologie de Compiègne, Compiègne, France
| | - M. Adrián Troncoso-Ponce
- UPJV, UMR CNRS 7025, Enzyme and Cell Engineering, Centre de Recherche Royallieu, Université de Technologie de Compiègne, Compiègne, France
| | | | - Brigitte Thomasset
- UPJV, UMR CNRS 7025, Enzyme and Cell Engineering, Centre de Recherche Royallieu, Université de Technologie de Compiègne, Compiègne, France
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8
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Sofeo N, Hart JH, Butler B, Oliver DJ, Yandeau-Nelson MD, Nikolau BJ. Altering the Substrate Specificity of Acetyl-CoA Synthetase by Rational Mutagenesis of the Carboxylate Binding Pocket. ACS Synth Biol 2019; 8:1325-1336. [PMID: 31117358 DOI: 10.1021/acssynbio.9b00008] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Acetyl-CoA synthetase (ACS) is a member of a large superfamily of enzymes that display diverse substrate specificities, with a common mechanism of catalyzing the formation of a thioester bond between Coenzyme A and a carboxylic acid, while hydrolyzing ATP to AMP and pyrophosphate. As an activated form of acetate, acetyl-CoA is a key metabolic intermediate that links many metabolic processes, including the TCA cycle, amino acid metabolism, fatty acid metabolism and biosynthetic processes that generate many polyketides and some terpenes. We explored the structural basis of the specificity of ACS for only activating acetate, whereas other members of this superfamily utilize a broad range of other carboxylate substrates. By computationally modeling the structure of the Arabidopsis ACS and the Pseudomonas chlororaphis isobutyryl-CoA synthetase using the experimentally determined tertiary structures of homologous ACS enzymes as templates, we identified residues that potentially comprise the carboxylate binding pocket. These predictions were systematically tested by mutagenesis of four specific residues. The resulting rationally redesigned carboxylate binding pocket modified the size and chemo-physical properties of the carboxylate binding pocket. This redesign successfully switched a highly specific enzyme from using only acetate, to be equally specific for using longer linear (up to hexanoate) or branched chain (methylvalerate) carboxylate substrates. The significance of this achievement is that it sets a precedent for understanding the structure-function relationship of an enzyme without the need for an experimentally determined tertiary structure of that target enzyme, and rationally generates new biocatalysts for metabolic engineering of a broad range of metabolic processes.
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Affiliation(s)
- Naazneen Sofeo
- Roy J. Carver Department of Biochemistry, Biophysics, and Molecular Biology, Iowa State University, Ames, Iowa 50011, United States
- Engineering Research Center for Biorenewable Chemicals, Iowa State University, Ames, Iowa 50011, United States
- Center for Metabolic Biology, Iowa State University, Ames, Iowa 50011, United States
| | - Jason H. Hart
- Roy J. Carver Department of Biochemistry, Biophysics, and Molecular Biology, Iowa State University, Ames, Iowa 50011, United States
- Engineering Research Center for Biorenewable Chemicals, Iowa State University, Ames, Iowa 50011, United States
| | - Brandon Butler
- Engineering Research Center for Biorenewable Chemicals, Iowa State University, Ames, Iowa 50011, United States
| | - David J. Oliver
- Department of Genetics, Development, and Cell Biology, Iowa State University, Ames, Iowa 50011, United States
- Engineering Research Center for Biorenewable Chemicals, Iowa State University, Ames, Iowa 50011, United States
| | - Marna D. Yandeau-Nelson
- Roy J. Carver Department of Biochemistry, Biophysics, and Molecular Biology, Iowa State University, Ames, Iowa 50011, United States
- Department of Genetics, Development, and Cell Biology, Iowa State University, Ames, Iowa 50011, United States
- Engineering Research Center for Biorenewable Chemicals, Iowa State University, Ames, Iowa 50011, United States
- Center for Metabolic Biology, Iowa State University, Ames, Iowa 50011, United States
| | - Basil J. Nikolau
- Roy J. Carver Department of Biochemistry, Biophysics, and Molecular Biology, Iowa State University, Ames, Iowa 50011, United States
- Engineering Research Center for Biorenewable Chemicals, Iowa State University, Ames, Iowa 50011, United States
- Center for Metabolic Biology, Iowa State University, Ames, Iowa 50011, United States
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9
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Bowman CE, Wolfgang MJ. Role of the malonyl-CoA synthetase ACSF3 in mitochondrial metabolism. Adv Biol Regul 2019; 71:34-40. [PMID: 30201289 PMCID: PMC6347522 DOI: 10.1016/j.jbior.2018.09.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 09/04/2018] [Accepted: 09/04/2018] [Indexed: 12/26/2022]
Abstract
Malonyl-CoA is a central metabolite in fatty acid biochemistry. It is the rate-determining intermediate in fatty acid synthesis but is also an allosteric inhibitor of the rate-setting step in mitochondrial long-chain fatty acid oxidation. While these canonical cytoplasmic roles of malonyl-CoA have been well described, malonyl-CoA can also be generated within the mitochondrial matrix by an alternative pathway: the ATP-dependent ligation of malonate to Coenzyme A by the malonyl-CoA synthetase ACSF3. Malonate, a competitive inhibitor of succinate dehydrogenase of the TCA cycle, is a potent inhibitor of mitochondrial respiration. A major role for ACSF3 is to provide a metabolic pathway for the clearance of malonate by the generation of malonyl-CoA, which can then be decarboxylated to acetyl-CoA by malonyl-CoA decarboxylase. Additionally, ACSF3-derived malonyl-CoA can be used to malonylate lysine residues on proteins within the matrix of mitochondria, possibly adding another regulatory layer to post-translational control of mitochondrial metabolism. The discovery of ACSF3-mediated generation of malonyl-CoA defines a new mitochondrial metabolic pathway and raises new questions about how the metabolic fates of this multifunctional metabolite intersect with mitochondrial metabolism.
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Affiliation(s)
- Caitlyn E Bowman
- Department of Biological Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Michael J Wolfgang
- Department of Biological Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.
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10
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Liu Z, Wang Z, Gu H, You J, Hu M, Zhang Y, Zhu Z, Wang Y, Liu S, Chen L, Liu X, Tian Y, Zhou S, Jiang L, Liu L, Wan J. Identification and Phenotypic Characterization of ZEBRA LEAF16 Encoding a β-Hydroxyacyl-ACP Dehydratase in Rice. FRONTIERS IN PLANT SCIENCE 2018; 9:782. [PMID: 29946330 PMCID: PMC6005893 DOI: 10.3389/fpls.2018.00782] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 05/23/2018] [Indexed: 05/06/2023]
Abstract
The chloroplast is a self-independent organelle and contains its own transcription and translation systems. The establishment of genetic systems is vital for normal plant growth and development. We isolated a rice zebra leaf 16 (zl16) mutant derived from rice cultivar 9311. The zl16 mutant showed chlorotic abnormalities in the transverse sectors of the young leaves of seedlings. The use of transmission electron microscopy (TEM) demonstrated that dramatic defects occurred in variegated zl16 leaves during the early development of a chloroplast. Map-based cloning revealed that ZL16 encodes a β-hydroxyacyl-ACP dehydratase (HAD) involved in de novo fatty acid synthesis. Compared with the wild type, a missense mutation (Arg164Trp) in the zl16 mutant was identified, which significantly reduced enzymatic activity and altered the three-dimensional modeling structure of the putative protein. ZL16 was ubiquitously expressed in various plant organs, with a pronounced level in the young leaf. A subcellular localization experiment indicated that ZL16 was targeted in the chloroplast. Furthermore, we analyzed the expression of some nuclear genes involved in chloroplast development, and found they were altered in the zl16 mutant. RNA-Seq analysis indicated that some genes related to cell membrane constituents were downregulated in the mutant. An in vivo metabolic assay revealed that the total fatty acid content in the mutant was significantly decreased relative to the wild type. Our results indicate that HAD is essential for the development of chloroplasts by regulating the synthesis of fatty acids in rice.
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Affiliation(s)
- Ziwen Liu
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, China
| | - Zhiyuan Wang
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, China
| | - Han Gu
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, China
| | - Jia You
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, China
| | - Manman Hu
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, China
| | - Yujun Zhang
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, China
| | - Ze Zhu
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, China
| | - Yihua Wang
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, China
| | - Shijia Liu
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, China
| | - Liangming Chen
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, China
| | - Xi Liu
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, China
| | - Yunlu Tian
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, China
| | - Shirong Zhou
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, China
| | - Ling Jiang
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, China
| | - Linglong Liu
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, China
- *Correspondence: Linglong Liu,
| | - Jianmin Wan
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, China
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
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11
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Li-Beisson Y, Neunzig J, Lee Y, Philippar K. Plant membrane-protein mediated intracellular traffic of fatty acids and acyl lipids. CURRENT OPINION IN PLANT BIOLOGY 2017; 40:138-146. [PMID: 28985576 DOI: 10.1016/j.pbi.2017.09.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 09/06/2017] [Accepted: 09/07/2017] [Indexed: 05/24/2023]
Abstract
In plants, de novo synthesis of fatty acids (FAs) occurs in plastids, whereas assembly and modification of acyl lipids is accomplished in the endoplasmic reticulum (ER) and plastids as well as in mitochondria. Subsequently, lipophilic compounds are distributed within the cell and delivered to their destination site. Thus, constant acyl-exchanges between subcellular compartments exist. These can occur via several modes of transport and plant membrane-intrinsic proteins for FA/lipid transfer have been shown to play an essential role in delivery and distribution. Lately, substantial progress has been made in identification and characterization of transport proteins for lipid compounds in plant organelle membranes. In this review, we focus on our current understanding of protein mediated lipid traffic between organelles of land plants.
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Affiliation(s)
- Yonghua Li-Beisson
- CEA, CNRS and Aix-Marseille Université, Institut de Biosciences et Biotechnologies d'Aix-Marseille, UMR 7265, CEA Cadarache, Saint-Paul-lez Durance F-13108, France
| | - Jens Neunzig
- Saarland University, Center for Human- and Molecular Biology - Plant Biology, Campus A 2.4, D-66123 Saarbrücken, Germany
| | - Youngsook Lee
- Division of Integrative Bioscience and Biotechnology, POSTECH, Pohang 37673, Republic of Korea
| | - Katrin Philippar
- Saarland University, Center for Human- and Molecular Biology - Plant Biology, Campus A 2.4, D-66123 Saarbrücken, Germany.
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A conserved mammalian mitochondrial isoform of acetyl-CoA carboxylase ACC1 provides the malonyl-CoA essential for mitochondrial biogenesis in tandem with ACSF3. Biochem J 2017; 474:3783-3797. [PMID: 28986507 DOI: 10.1042/bcj20170416] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 09/29/2017] [Accepted: 10/03/2017] [Indexed: 01/06/2023]
Abstract
Mitochondrial fatty acid synthesis (mtFAS) is a highly conserved pathway essential for mitochondrial biogenesis. The mtFAS process is required for mitochondrial respiratory chain assembly and function, synthesis of the lipoic acid cofactor indispensable for the function of several mitochondrial enzyme complexes and essential for embryonic development in mice. Mutations in human mtFAS have been reported to lead to neurodegenerative disease. The source of malonyl-CoA for mtFAS in mammals has remained unclear. We report the identification of a conserved vertebrate mitochondrial isoform of ACC1 expressed from an ACACA transcript splicing variant. A specific knockdown (KD) of the corresponding transcript in mouse cells, or CRISPR/Cas9-mediated inactivation of the putative mitochondrial targeting sequence in human cells, leads to decreased lipoylation and mitochondrial fragmentation. Simultaneous KD of ACSF3, encoding a mitochondrial malonyl-CoA synthetase previously implicated in the mtFAS process, resulted in almost complete ablation of protein lipoylation, indicating that these enzymes have a redundant function in mtFAS. The discovery of a mitochondrial isoform of ACC1 required for lipoic acid synthesis has intriguing consequences for our understanding of mitochondrial disorders, metabolic regulation of mitochondrial biogenesis and cancer.
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13
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Mujahid H, Meng X, Xing S, Peng X, Wang C, Peng Z. Malonylome analysis in developing rice (Oryza sativa) seeds suggesting that protein lysine malonylation is well-conserved and overlaps with acetylation and succinylation substantially. J Proteomics 2017; 170:88-98. [PMID: 28882676 DOI: 10.1016/j.jprot.2017.08.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 07/29/2017] [Accepted: 08/31/2017] [Indexed: 12/13/2022]
Abstract
In recent years, lysine malonylation has garnered wide spread interest due to its potential regulatory roles. While studies have been performed in bacteria, mouse, and human, the involvement and the biological function of this modification in plant are still largely unknown. We examined the global proteome profile of lysine malonylation in developing rice seeds using affinity enrichment followed by LC-MS/MS analysis. We identified 421 malonylated lysine sites across 247 proteins. Functional analyses showed predominant presence of malonylated proteins in metabolic processes, including carbon metabolism, glycolysis/gluconeogenesis, TCA cycle, as well as photosynthesis. Malonylation was also detected on enzymes in starch biosynthesis pathway in developing rice seeds. In addition, we found a remarkable overlap among the malonylated, succinylated and acetylated sites identified in rice. Furthermore, malonylation at conserved sites of homologous proteins was observed across organisms of different kingdoms, including mouse, human, and bacteria. Finally, distinct motifs were identified when the rice malonylation sites were analyzed and conserved motifs were observed from bacterium to human and rice. Our results provide an initial understanding of the lysine malonylome in plants. The study has critical reference value for future understanding of the biological function of protein lysine malonylation in plants. BIOLOGICAL SIGNIFICANCE Lysine malonylation is a newly discovered acylation with functional potential in regulating cellular metabolisms and activities. However, the malonylation status has not been reported in plants. Grain yield and quality, mainly determined during cereal seed development, are closely related to food security, human health and economic value. To evaluate malonylation level in plants and the possible regulatory functions of malonylation in seed development, we conducted comprehensive analyses of malonylome in developing rice seeds. A total of 421 malonylated lysine sites from 247 proteins were identified, which involved in multiple critical metabolic processes, including central carbon metabolism, lipid metabolism, photosynthesis, and starch biosynthesis. We found that charged amino acids, lysine and arginine, were the preferred residues in positions flanking the modified lysines. Highly conserved modification sites on both histone and non-histone proteins were observed among different organisms through sequence alignment analysis. More interestingly, a large number of modification sites shared by malonylation, acetylation and succinylation were identified in rice. The study presents a comprehensive understanding of malonylome in plants, which will serve as an initial platform for further investigation of the functions of lysine malonylation, especially in cereal seeds development.
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Affiliation(s)
- Hana Mujahid
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Starkville, MS 39762, USA
| | - Xiaoxi Meng
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Starkville, MS 39762, USA
| | - Shihai Xing
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Starkville, MS 39762, USA
| | - Xiaojun Peng
- Department of Bioinformatics, Jingjie PTM Biolab Co. Ltd, Hangzhou, Zhejiang 310018, China
| | - Cailin Wang
- Institute of Crop Sciences, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu 210014, China.
| | - Zhaohua Peng
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Starkville, MS 39762, USA.
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14
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Abstract
In this issue of Cell Chemical Biology, Bowman and colleagues show that the mitochondrial enzyme ACSF3 generates malonyl-CoA from malonate, in turn regulating metabolic flux and mitochondrial protein malonylation (Bowman et al., 2017). The study reveals a mechanism to generate mitochondrial malonyl-CoA and how this molecule impacts mitochondrial biology.
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Affiliation(s)
- David B Lombard
- Department of Pathology and Institute of Gerontology, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Yingming Zhao
- Ben May Department for Cancer Research, The University of Chicago, Chicago, IL 60637, USA.
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15
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The Mammalian Malonyl-CoA Synthetase ACSF3 Is Required for Mitochondrial Protein Malonylation and Metabolic Efficiency. Cell Chem Biol 2017; 24:673-684.e4. [PMID: 28479296 DOI: 10.1016/j.chembiol.2017.04.009] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 03/08/2017] [Accepted: 04/07/2017] [Indexed: 12/13/2022]
Abstract
Malonyl-coenzyme A (malonyl-CoA) is a central metabolite in mammalian fatty acid biochemistry generated and utilized in the cytoplasm; however, little is known about noncanonical organelle-specific malonyl-CoA metabolism. Intramitochondrial malonyl-CoA is generated by a malonyl-CoA synthetase, ACSF3, which produces malonyl-CoA from malonate, an endogenous competitive inhibitor of succinate dehydrogenase. To determine the metabolic requirement for mitochondrial malonyl-CoA, ACSF3 knockout (KO) cells were generated by CRISPR/Cas-mediated genome editing. ACSF3 KO cells exhibited elevated malonate and impaired mitochondrial metabolism. Unbiased and targeted metabolomics analysis of KO and control cells in the presence or absence of exogenous malonate revealed metabolic changes dependent on either malonate or malonyl-CoA. While ACSF3 was required for the metabolism and therefore detoxification of malonate, ACSF3-derived malonyl-CoA was specifically required for lysine malonylation of mitochondrial proteins. Together, these data describe an essential role for ACSF3 in dictating the metabolic fate of mitochondrial malonate and malonyl-CoA in mammalian metabolism.
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16
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Chen G, Liu H, Wei Q, Zhao H, Liu J, Yu Y. The acyl-activating enzyme PhAAE13 is an alternative enzymatic source of precursors for anthocyanin biosynthesis in petunia flowers. JOURNAL OF EXPERIMENTAL BOTANY 2017; 68:457-467. [PMID: 28204578 PMCID: PMC5441920 DOI: 10.1093/jxb/erw426] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Anthocyanins, a class of flavonoids, are responsible for the orange to blue coloration of flowers and act as visual attractors to aid pollination and seed dispersal. Malonyl-CoA is the precursor for the formation of flavonoids and anthocyanins. Previous studies have suggested that malonyl-CoA is formed almost exclusively by acetyl-CoA carboxylase, which catalyzes the ATP-dependent formation of malonyl-CoA from acetyl-CoA and bicarbonate. In the present study, the full-length cDNA of Petunia hybrida acyl-activating enzyme 13 (PhAAE13), a member of clade VII of the AAE superfamily that encodes malonyl-CoA synthetase, was isolated. The expression of PhAAE13 was highest in corollas and was down-regulated by ethylene. Virus-induced gene silencing of petunia PhAAE13 significantly reduced anthocyanin accumulation, fatty acid content, and cuticular wax components content, and increased malonic acid content in flowers. The silencing of PhAAE3 and PhAAE14, the other two genes in clade VII of the AAE superfamily, did not change the anthocyanin content in petunia flowers. This study provides strong evidence indicating that PhAAE13, among clade VII of the AAE superfamily, is specifically involved in anthocyanin biosynthesis in petunia flowers.
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Affiliation(s)
- Guoju Chen
- College of Horticulture, South China Agricultural University, Guangzhou, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China
| | - Heping Liu
- College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Qian Wei
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China
| | - Huina Zhao
- College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Juanxu Liu
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China
| | - Yixun Yu
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China
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17
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Liu Y, Wang X, Mo T, Yan Y, Song Y, Zhao Y, Li J, Shi S, Liu X, Tu P. Identification and functional application of a new malonyltransferase NbMaT1 towards diverse aromatic glycosides from Nicotiana benthamiana. RSC Adv 2017. [DOI: 10.1039/c7ra01940h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new malonyltransferase NbMaT1 from Nicotiana benthamiana with significant substrate tolerance was identified and used in the chemo-enzymatic synthesis of diverse bioactive malonylated glycosides derivatives in this article.
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18
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Parker N, Wang Y, Meinke D. Analysis of Arabidopsis Accessions Hypersensitive to a Loss of Chloroplast Translation. PLANT PHYSIOLOGY 2016; 172:1862-1875. [PMID: 27707889 PMCID: PMC5100756 DOI: 10.1104/pp.16.01291] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 10/03/2016] [Indexed: 05/04/2023]
Abstract
Natural accessions of Arabidopsis (Arabidopsis thaliana) differ in their ability to tolerate a loss of chloroplast translation. These differences can be attributed in part to variation in a duplicated nuclear gene (ACC2) that targets homomeric acetyl-coenzyme A carboxylase (ACCase) to plastids. This functional redundancy allows limited fatty acid biosynthesis to occur in the absence of heteromeric ACCase, which is encoded in part by the plastid genome. In the presence of functional ACC2, tolerant alleles of several nuclear genes, not yet identified, enhance the growth of seedlings and embryos disrupted in chloroplast translation. ACC2 knockout mutants, by contrast, are hypersensitive. Here we describe an expanded search for hypersensitive accessions of Arabidopsis, evaluate whether all of these accessions are defective in ACC2, and characterize genotype-to-phenotype relationships for homomeric ACCase variants identified among 855 accessions with sequenced genomes. Null alleles with ACC2 nonsense mutations, frameshift mutations, small deletions, genomic rearrangements, and defects in RNA splicing are included among the most sensitive accessions examined. By contrast, most missense mutations affecting highly conserved residues failed to eliminate ACC2 function. Several accessions were identified where sensitivity could not be attributed to a defect in either ACC2 or Tic20-IV, the chloroplast membrane channel required for ACC2 uptake. Overall, these results underscore the central role of ACC2 in mediating Arabidopsis response to a loss of chloroplast translation, highlight future applications of this system to analyzing chloroplast protein import, and provide valuable insights into the mutational landscape of an important metabolic enzyme that is highly conserved throughout eukaryotes.
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Affiliation(s)
- Nicole Parker
- Department of Plant Biology, Ecology, and Evolution, Oklahoma State University, Stillwater, Oklahoma 74078
| | - Yixing Wang
- Department of Plant Biology, Ecology, and Evolution, Oklahoma State University, Stillwater, Oklahoma 74078
| | - David Meinke
- Department of Plant Biology, Ecology, and Evolution, Oklahoma State University, Stillwater, Oklahoma 74078
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19
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Kastaniotis AJ, Autio KJ, Kerätär JM, Monteuuis G, Mäkelä AM, Nair RR, Pietikäinen LP, Shvetsova A, Chen Z, Hiltunen JK. Mitochondrial fatty acid synthesis, fatty acids and mitochondrial physiology. Biochim Biophys Acta Mol Cell Biol Lipids 2016; 1862:39-48. [PMID: 27553474 DOI: 10.1016/j.bbalip.2016.08.011] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Revised: 07/20/2016] [Accepted: 08/17/2016] [Indexed: 02/07/2023]
Abstract
Mitochondria and fatty acids are tightly connected to a multiplicity of cellular processes that go far beyond mitochondrial fatty acid metabolism. In line with this view, there is hardly any common metabolic disorder that is not associated with disturbed mitochondrial lipid handling. Among other aspects of mitochondrial lipid metabolism, apparently all eukaryotes are capable of carrying out de novo fatty acid synthesis (FAS) in this cellular compartment in an acyl carrier protein (ACP)-dependent manner. The dual localization of FAS in eukaryotic cells raises the questions why eukaryotes have maintained the FAS in mitochondria in addition to the "classic" cytoplasmic FAS and what the products are that cannot be substituted by delivery of fatty acids of extramitochondrial origin. The current evidence indicates that mitochondrial FAS is essential for cellular respiration and mitochondrial biogenesis. Although both β-oxidation and FAS utilize thioester chemistry, CoA acts as acyl-group carrier in the breakdown pathway whereas ACP assumes this role in the synthetic direction. This arrangement metabolically separates these two pathways running towards opposite directions and prevents futile cycling. A role of this pathway in mitochondrial metabolic sensing has recently been proposed. This article is part of a Special Issue entitled: Lipids of Mitochondria edited by Guenther Daum.
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Affiliation(s)
- Alexander J Kastaniotis
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Oulu, Finland.
| | - Kaija J Autio
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Juha M Kerätär
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Geoffray Monteuuis
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Anne M Mäkelä
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Remya R Nair
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Laura P Pietikäinen
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Antonina Shvetsova
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Zhijun Chen
- State Key Laboratory of Supramolecular Structure and Materials and Institute of Theoretical Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China
| | - J Kalervo Hiltunen
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Oulu, Finland; State Key Laboratory of Supramolecular Structure and Materials and Institute of Theoretical Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China.
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20
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Gacek K, Bayer PE, Bartkowiak-Broda I, Szala L, Bocianowski J, Edwards D, Batley J. Genome-Wide Association Study of Genetic Control of Seed Fatty Acid Biosynthesis in Brassica napus. FRONTIERS IN PLANT SCIENCE 2016; 7:2062. [PMID: 28163710 PMCID: PMC5247464 DOI: 10.3389/fpls.2016.02062] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 12/26/2016] [Indexed: 05/03/2023]
Abstract
Fatty acids and their composition in seeds determine oil value for nutritional or industrial purposes and also affect seed germination as well as seedling establishment. To better understand the genetic basis of seed fatty acid biosynthesis in oilseed rape (Brassica napus L.) we applied a genome-wide association study, using 91,205 single nucleotide polymorphisms (SNPs) characterized across a mapping population with high-resolution skim genotyping by sequencing (SkimGBS). We identified a cluster of loci on chromosome A05 associated with oleic and linoleic seed fatty acids. The delineated genomic region contained orthologs of the Arabidopsis thaliana genes known to play a role in regulation of seed fatty acid biosynthesis such as Fatty acyl-ACP thioesterase B (FATB) and Fatty Acid Desaturase (FAD5). This approach allowed us to identify potential functional genes regulating fatty acid composition in this important oil producing crop and demonstrates that this approach can be used as a powerful tool for dissecting complex traits for B. napus improvement programs.
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Affiliation(s)
- Katarzyna Gacek
- Plant Breeding and Acclimatization Institute—National Research Institute, Oilseed Crops Research CentrePoznan, Poland
| | - Philipp E. Bayer
- School of Plant Biology, University of Western AustraliaPerth, WA, Australia
| | - Iwona Bartkowiak-Broda
- Plant Breeding and Acclimatization Institute—National Research Institute, Oilseed Crops Research CentrePoznan, Poland
| | - Laurencja Szala
- Plant Breeding and Acclimatization Institute—National Research Institute, Oilseed Crops Research CentrePoznan, Poland
| | - Jan Bocianowski
- Department of Mathematical and Statistical Methods, Poznan University of Life SciencesPoznan, Poland
| | - David Edwards
- School of Plant Biology, University of Western AustraliaPerth, WA, Australia
| | - Jacqueline Batley
- School of Plant Biology, University of Western AustraliaPerth, WA, Australia
- *Correspondence: Jacqueline Batley
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