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Jin Y, Wang J, Liu Q, Qiu H, Wang Y, Zhou J, Sun J, Li P, Wang R, Zhang W. Genome of Bacillus sp. strain QHF158 provides insights into its parasporal inclusions encoded by the S-layer gene. Braz J Microbiol 2019; 51:1145-1150. [PMID: 31836963 DOI: 10.1007/s42770-019-00205-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 12/01/2019] [Indexed: 10/25/2022] Open
Abstract
Bacillus sp. strain QHF158, a Gram-positive, spore-forming and parasporal crystal-secreting bacterium, was isolated from soil of Limushan National Forest Park in China. Here we present the significant feature of parasporal inclusions of this organism, together with the draft genome sequence and annotation. Phylogenetic analysis suggested that strain QHF158 is possibly a novel species, most closely related to Bacillus mycoides. Genome annotation results revealed that strain QHF158 did not contain any typical Cry or Cyt toxin coding gene. Furthermore, the mass spectrometry analyses demonstrated that the parasporal crystalline inclusions were encoded by the orf_05273 gene, with 95% similarity to the S-layer protein (SLP) EA1 of B. mycoides, which indicated that the parasporal crystal from Bacillus sp. strain QHF158 was mainly formed by SLP, instead of the typical Cry or Cyt toxin proteins.
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Affiliation(s)
- Yinghong Jin
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Junhui Wang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Qian Liu
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Haifang Qiu
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Yangyang Wang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Jiayi Zhou
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Jie Sun
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Peng Li
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Ruiping Wang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Wenfei Zhang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China.
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Zhu C, Guo G, Ma Q, Zhang F, Ma F, Liu J, Xiao D, Yang X, Sun M. Diversity in S-layers. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2016; 123:1-15. [PMID: 27498171 DOI: 10.1016/j.pbiomolbio.2016.08.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 06/16/2016] [Accepted: 08/02/2016] [Indexed: 01/29/2023]
Abstract
Surface layers, referred simply as S-layers, are the two-dimensional crystalline arrays of protein or glycoprotein subunits on cell surface. They are one of the most common outermost envelope components observed in prokaryotic organisms (Archaea and Bacteria). Over the past decades, S-layers have become an issue of increasing interest due to their ubiquitousness, special features and functions. Substantial work in this field provides evidences of an enormous diversity in S-layers. This paper reviews and illustrates the diversity from several different aspects, involving the S-layer-carrying strains, the structure of S-layers, the S-layer proteins and genes, as well as the functions of S-layers.
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Affiliation(s)
- Chaohua Zhu
- College of Environment and Plant protection, Hainan University/Key Laboratory of Protection and Development Utilization of Tropical Crop Germplasm Resources (Hainan University), Ministry of Education, Haikou, 570228, Hainan, PR China
| | - Gang Guo
- Haikou Experimental Station/Hainan Key Laboratory of Banana Genetic Improvement, Chinese Academy of Tropical Agricultural Sciences, Haikou, 570102, Hainan, PR China; State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, PR China
| | - Qiqi Ma
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, PR China
| | - Fengjuan Zhang
- Haikou Experimental Station/Hainan Key Laboratory of Banana Genetic Improvement, Chinese Academy of Tropical Agricultural Sciences, Haikou, 570102, Hainan, PR China
| | - Funing Ma
- Haikou Experimental Station/Hainan Key Laboratory of Banana Genetic Improvement, Chinese Academy of Tropical Agricultural Sciences, Haikou, 570102, Hainan, PR China
| | - Jianping Liu
- Division of Functional Genomics, Department of Medical Biochemistry and Biophysics (MBB), Karolinska Institutet, Stockholm 17177, Sweden
| | - Dao Xiao
- Haikou Experimental Station/Hainan Key Laboratory of Banana Genetic Improvement, Chinese Academy of Tropical Agricultural Sciences, Haikou, 570102, Hainan, PR China
| | - Xiaolin Yang
- College of Environment and Plant protection, Hainan University/Key Laboratory of Protection and Development Utilization of Tropical Crop Germplasm Resources (Hainan University), Ministry of Education, Haikou, 570228, Hainan, PR China
| | - Ming Sun
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, PR China.
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Complete genome sequence of Bacillus thuringiensis CTC—A typical strain with high production of S-layer proteins. J Biotechnol 2016; 220:100-1. [DOI: 10.1016/j.jbiotec.2015.12.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 12/17/2015] [Indexed: 11/21/2022]
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Makart L, Gillis A, Mahillon J. pXO16 from Bacillus thuringiensis serovar israelensis: Almost 350 kb of terra incognita. Plasmid 2015; 80:8-15. [PMID: 25770691 DOI: 10.1016/j.plasmid.2015.03.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 02/21/2015] [Accepted: 03/03/2015] [Indexed: 11/20/2022]
Abstract
Bacillus thuringiensis strains usually harbor large sets of plasmids, some of which carrying the entomopathogenic δ-endotoxins. B. thuringiensis serovar israelensis, active on Dipteran larvae, carries the very large conjugative plasmid pXO16 (350 kb). pXO16 displays a macroscopic aggregation phenotype when liquid cultures of conjugative partners are mixed. Its conjugative apparatus is able of transferring itself and other non-conjugative and non-mobilizable plasmids in a fast and very efficient manner. Even though its conjugative kinetics and capabilities have been extensively studied, the genetic bases for this unique transfer system remain largely unknown. In this work, the sequence of pXO16 has been identified in the existing sequenced genome of B. thuringiensis sv. israelensis HD-789 as corresponding to the p01 plasmid. Despite pXO16 sequence being highly coding, few CDS possess homologs in the databases. However, potential regions responsible for the aggregation phenotype and the plasmid replication have been highlighted. The common orientation of all CDS and the presence of a high number of potential paralogs suggested a phage-like nature. Concerning conjugative functions, no significant type IV secretion system homologs have been found, indicating that pXO16 encodes an unforeseen conjugative system.
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Affiliation(s)
- Lionel Makart
- Laboratory of Food and Environmental Microbiology, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium
| | - Annika Gillis
- Laboratory of Food and Environmental Microbiology, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium
| | - Jacques Mahillon
- Laboratory of Food and Environmental Microbiology, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium.
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Allievi MC, Palomino MM, Prado Acosta M, Lanati L, Ruzal SM, Sánchez-Rivas C. Contribution of S-layer proteins to the mosquitocidal activity of Lysinibacillus sphaericus. PLoS One 2014; 9:e111114. [PMID: 25354162 PMCID: PMC4213006 DOI: 10.1371/journal.pone.0111114] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 09/26/2014] [Indexed: 11/25/2022] Open
Abstract
Lysinibacillus sphaericus strains belonging the antigenic group H5a5b produce spores with larvicidal activity against larvae of Culex mosquitoes. C7, a new isolated strain, which presents similar biochemical characteristics and Bin toxins in their spores as the reference strain 2362, was, however, more active against larvae of Culex mosquitoes. The contribution of the surface layer protein (S-layer) to this behaviour was envisaged since this envelope protein has been implicated in the pathogenicity of several bacilli, and we had previously reported its association to spores. Microscopic observation by immunofluorescence detection with anti S-layer antibody in the spores confirms their attachment. S-layers and BinA and BinB toxins formed high molecular weight multimers in spores as shown by SDS-PAGE and western blot detection. Purified S-layer from both L. sphaericus C7 and 2362 strain cultures was by itself toxic against Culex sp larvae, however, that from C7 strain was also toxic against Aedes aegypti. Synergistic effect between purified S-layer and spore-crystal preparations was observed against Culex sp. and Aedes aegypti larvae. This effect was more evident with the C7 strain. In silico analyses of the S-layer sequence suggest the presence of chitin-binding and hemolytic domains. Both biochemical characteristics were detected for both S-layers strains that must justify their contribution to pathogenicity.
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Affiliation(s)
- Mariana Claudia Allievi
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IQUIBICEN-CONICET, Buenos Aires, Argentina
| | - María Mercedes Palomino
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IQUIBICEN-CONICET, Buenos Aires, Argentina
| | - Mariano Prado Acosta
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IQUIBICEN-CONICET, Buenos Aires, Argentina
| | - Leonardo Lanati
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IQUIBICEN-CONICET, Buenos Aires, Argentina
| | - Sandra Mónica Ruzal
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IQUIBICEN-CONICET, Buenos Aires, Argentina
| | - Carmen Sánchez-Rivas
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IQUIBICEN-CONICET, Buenos Aires, Argentina
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