title: Component identification of electron transport chains in curdlan-producing Agrobacterium sp. ATCC 31749 and its genome-specific prediction using comparative genome and phylogenetic trees analysis.
abstract: Agrobacterium sp. ATCC 31749 (formerly named Alcaligenes faecalis var. myxogenes) is a non-pathogenic aerobic soil bacterium used in large scale biotechnological production of curdlan. However, little is known about its genomic information. DNA partial sequence of electron transport chains (ETCs) protein genes were obtained in order to understand the components of ETC and genomic-specificity in Agrobacterium sp. ATCC 31749. Degenerate primers were designed according to ETC conserved sequences in other reported species. DNA partial sequences of ETC genes in Agrobacterium sp. ATCC 31749 were cloned by the PCR method using degenerate primers. Based on comparative genomic analysis, nine electron transport elements were ascertained, including NADH ubiquinone oxidoreductase, succinate dehydrogenase complex II, complex III, cytochrome c, ubiquinone biosynthesis protein ubiB, cytochrome d terminal oxidase, cytochrome bo terminal oxidase, cytochrome cbb (3)-type terminal oxidase and cytochrome caa (3)-type terminal oxidase. Similarity and phylogenetic analyses of these genes revealed that among fully sequenced Agrobacterium species, Agrobacterium sp. ATCC 31749 is closest to Agrobacterium tumefaciens C58. Based on these results a comprehensive ETC model for Agrobacterium sp. ATCC 31749 is proposed.
authors: Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China.
authors: Hongtao
authors: H
authors: Zhang
authors: Joao Carlos
authors: JC
authors: Setubal
authors: Xiaobei
authors: X
authors: Zhan
authors: Zhiyong
authors: Z
authors: Zheng
authors: Lijun
authors: L
authors: Yu
authors: Jianrong
authors: J
authors: Wu
authors: Dingqiang
authors: D
authors: Chen
mesh_terms: D017937:Cytochrome d Group / Q000235:genetics; D004579:Electron Transport / Q000235:genetics; D003576:Electron Transport Complex IV / Q000235:genetics; D005798:Genes, Bacterial; D016680:Genome, Bacterial; D023281:Genomics; D010088:Oxidoreductases / Q000235:genetics; D010802:Phylogeny; D012231:Rhizobium / Q000145:classification / Q000201:enzymology / Q000235:genetics*; D013385:Succinate Dehydrogenase / Q000235:genetics; D047071:beta-Glucans / Q000378:metabolism*
chemical_list: D047071:beta-Glucans; C038459:curdlan; D017937:Cytochrome d Group; D010088:Oxidoreductases; D013385:Succinate Dehydrogenase; C038862:cytochrome o oxidase; D003576:Electron Transport Complex IV