Ts. Ramasubramanian et al., TRANSCRIPTION OF THE ANABAENA SP STRAIN PCC-7120 NTCA GENE - MULTIPLETRANSCRIPTS AND NTCA BINDING, Journal of bacteriology, 178(3), 1996, pp. 922-926
The Anabaena sp. strain PCC 7120 ntcA gene showed multiple transcripts
with different 5' ends. The relative abundance of transcripts varied
in response to nitrogen availability. The ntcA product, NtcA, showed b
inding to the promoter region of its own gene. The binding site mapped
to a region between the transcription start site used under nitrogen-
replete conditions and the start sites used under nitrogen-limiting co
nditions, suggesting that NtcA regulates its own expression.