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鉴定和系统发育特征分析固氮螺菌 cobalamin 生物合成基因。

Identification and phylogenetic characterization of cobalamin biosynthetic genes of Ensifer adhaerens.

机构信息

Department of Applied Biological Chemistry, The University of Tokyo, Tokyo, Japan.

出版信息

Microbes Environ. 2013;28(1):153-5. doi: 10.1264/jsme2.me12069. Epub 2012 Dec 19.

DOI:10.1264/jsme2.me12069
PMID:23257908
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4070679/
Abstract

Ensifer adhaerens CSBa was screened as a cobalamin producer. The draft genome sequence revealed that the strain possesses 22 cobalamin biosynthetic genes (cob genes). The cob gene arrangement on the genome of E. adhaerens CSBa was similar to that of other Ensifer species, and most similar to that of Pseudomonas denitrificans SC510. The cobN sequence phylogeny was generally congruent with that of the 16S rRNA gene, and it is suggeted that E. adhaerens CSBa might have inherited the cob genes from common ancestors of the Ensifer species. It was also suggested that the cob genes can be laterally transferred.

摘要

粘着伊氏杆菌 CSBa 被筛选为钴胺素的生产者。该菌株的草图基因组序列表明，其拥有 22 个钴胺素生物合成基因（ cob 基因）。粘着伊氏杆菌 CSBa 基因组上 cob 基因的排列方式与其他伊氏杆菌属物种相似，与假单胞菌属脱氮硫杆菌 SC510 最为相似。 cobN 序列系统发育与 16S rRNA 基因基本一致，提示粘着伊氏杆菌 CSBa 可能从伊氏杆菌属的共同祖先那里继承了 cob 基因。同时也提示 cob 基因可以发生水平转移。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5278/4070679/ca861a4beba9/28_153f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5278/4070679/3002f35d01e7/28_153f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5278/4070679/ca861a4beba9/28_153f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5278/4070679/3002f35d01e7/28_153f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5278/4070679/ca861a4beba9/28_153f2.jpg

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