NtcA-dependent expression of the devBCA operon,: encoding a heterocyst-specific ATP-binding Cassette Transporter in Anabaena spp.

被引：32

作者：

Fiedler, G

Muro-Pastor, AM

Flores, E

Maldener, I ^{[1
]}

机构：

[1] Univ Regensburg, Lehrstuhl Zellbiol & Pflanzenphysiol, D-93040 Regensburg, Germany

[2] Univ Sevilla, CSIC, Ctr Invest Cient Isla Cartuja, Inst Bioquim Vegetal & Fotosintesis, E-41092 Seville, Spain

来源：

JOURNAL OF BACTERIOLOGY | 2001年 / 183卷 / 12期

关键词：

D O I：

10.1128/JB.183.12.3795-3799.2001

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

The devBCA operon, encoding subunits of an ATP-binding cassette exporter, is essential for differentiation of N-2-fixing heterocysts in Anabaena spp. Nitrogen deficiency-dependent transcription of the operon and the use of its transcriptional start point, located 762 (Anabaena variabilis strain ATCC 29413-FD) or 704 (Anabaena sp. strain PCC 7120) bp upstream of the translation start site, were found to require the global nitrogen transcriptional regulator NtcA. Furthermore, NtcA was shown to bind in vitro to the promoter of devBCA.

引用

页码：3795 / 3799

页数：5

共 25 条

[21] IDENTIFICATION AND CLONING OF A REGULATORY GENE FOR NITROGEN ASSIMILATION IN THE CYANOBACTERIUM SYNECHOCOCCUS SP STRAIN PCC-7942 [J].