EXPRESSION OF GLNA IN THE CYANOBACTERIUM SYNECHOCOCCUS SP STRAIN PCC-7942 IS INITIATED FROM A SINGLE NIF-LIKE PROMOTER UNDER VARIOUS NITROGEN CONDITIONS

Citation
R. Cohenkupiec et al., EXPRESSION OF GLNA IN THE CYANOBACTERIUM SYNECHOCOCCUS SP STRAIN PCC-7942 IS INITIATED FROM A SINGLE NIF-LIKE PROMOTER UNDER VARIOUS NITROGEN CONDITIONS, Journal of bacteriology, 175(23), 1993, pp. 7727-7731
Citations number
32
Categorie Soggetti
Microbiology
Journal title
ISSN journal
00219193
Volume
175
Issue
23
Year of publication
1993
Pages
7727 - 7731
Database
ISI
SICI code
0021-9193(1993)175:23<7727:EOGITC>2.0.ZU;2-J
Abstract
The glnA mRNA, encoding glutamine synthetase, is differentially accumu lated in the cyanobacterium Synechococcus sp. strain PCC 7942 in media containing different nitrogen sources. With the different nitrogen co mpounds, transcription of glnA initiated at a single site located -146 nucleotides upstream of the translation start site of the gene. A sim ilarity to the nif-like promoter of the glnA gene of Anabaena sp. stra in PCC 7120 and a binding-site sequence for the Synechococcus sp. stra in PCC 7942 transcription regulator, NtcA, were found upstream of the transcription initiation site.