Sequence and mutational analysis of the devBCA gene cluster encoding a putative ABC transporter in the cyanobacterium Anabaena variabilis ATCC 29413

被引:15
作者
Fiedler, G [1 ]
Arnold, M [1 ]
Maldener, I [1 ]
机构
[1] Univ Regensburg, Lehrstuhl Zellbiol & Pflanzenphysiol, D-93040 Regensburg, Germany
来源
BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES | 1998年 / 1375卷 / 1-2期
关键词
heterocyst differentiation; cyanobacterium; ABC transporter;
D O I
10.1016/S0005-2736(98)00147-3
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The devBCA gene cluster (dev for development), shown to be essential for envelope formation in heterocysts of Anabaena sp. strain PCC 7120, was identified in the gene bank of a second heterocyst-forming strain, Anabaena variabilis ATCC 29413. Sequence and structural organization of the three genes, encoding subunits of a presumptive ABC transporter, were nearly identical in both strains. Mutants of A. variabilis defective in the devA gene were constructed, As devA mutants of Anabaena 7120, A. variabilis mutants were unable to grow on N-2 as sole nitrogen source due to incomplete differentiation of heterocysts. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:140 / 143
页数:4
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