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编码ATP合酶的α、γ、δ亚基以及四个F0亚基的基因在蓝藻鱼腥藻Anabaena sp. PCC 7120菌株中构成一个操纵子。

Genes encoding the alpha, gamma, delta, and four F0 subunits of ATP synthase constitute an operon in the cyanobacterium Anabaena sp. strain PCC 7120.

作者信息

McCarn D F, Whitaker R A, Alam J, Vrba J M, Curtis S E

机构信息

Department of Genetics, North Carolina State University, Raleigh 27695-7614.

出版信息

J Bacteriol. 1988 Aug;170(8):3448-58. doi: 10.1128/jb.170.8.3448-3458.1988.

DOI:10.1128/jb.170.8.3448-3458.1988
PMID:2900236
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC211314/
Abstract

A cluster of genes encoding subunits of ATP synthase of Anabaena sp. strain PCC 7120 was cloned, and the nucleotide sequences of the genes were determined. This cluster, denoted atp1, consists of four F0 genes and three F1 genes encoding the subunits a (atpI), c (atpH), b' (atpG), b (atpF), delta (atpD), alpha (aptA), and gamma (atpC) in that order. Closely linked upstream of the ATP synthase subunit genes is an open reading frame denoted gene 1, which is equivalent to the uncI gene of Escherichia coli. The atp1 gene cluster is at least 10 kilobase pairs distant in the genome from apt2, a cluster of genes encoding the beta (atpB) and epsilon (atpE) subunits of the ATP synthase. This two-clustered ATP synthase gene arrangement is intermediate between those found in chloroplasts and E. coli. A unique feature of the Anabaena atp1 cluster is overlap between the coding regions for atpF and atpD. The atp1 cluster is transcribed as a single 7-kilobase polycistronic mRNA that initiates 140 base pairs upstream of gene 1. The deduced translation products for the Anabaena sp. strain PCC 7120 subunit genes are more similar to chloroplast ATP synthase subunits than to those of E. coli.

摘要

克隆了鱼腥藻PCC 7120菌株ATP合酶亚基的一组编码基因，并测定了这些基因的核苷酸序列。该基因簇命名为atp1，由四个F0基因和三个F1基因组成，依次编码亚基a（atpI）、c（atpH）、b'（atpG）、b（atpF）、δ（atpD）、α（aptA）和γ（atpC）。在ATP合酶亚基基因的紧密上游连接着一个开放阅读框，命名为基因1，它等同于大肠杆菌的uncI基因。atp1基因簇在基因组中与apt2至少相距10千碱基对，apt2是一组编码ATP合酶β（atpB）和ε（atpE）亚基的基因。这种双簇状的ATP合酶基因排列介于叶绿体和大肠杆菌中的排列之间。鱼腥藻atp1基因簇的一个独特特征是atpF和atpD的编码区之间存在重叠。atp1基因簇转录为一条7千碱基的单顺反子mRNA，起始于基因1上游140个碱基对处。鱼腥藻PCC 7120菌株亚基基因推导的翻译产物与叶绿体ATP合酶亚基的相似性高于与大肠杆菌的相似性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f727/211314/8367d0f60531/jbacter00186-0145-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f727/211314/bd6d699082e3/jbacter00186-0145-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f727/211314/8367d0f60531/jbacter00186-0145-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f727/211314/bd6d699082e3/jbacter00186-0145-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f727/211314/8367d0f60531/jbacter00186-0145-b.jpg

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