General distribution of the nitrogen control gene ntcA in cyanobacteria
Open Access
- 1 September 1993
- journal article
- Published by American Society for Microbiology in Journal of Bacteriology
- Vol. 175 (17) , 5710-5713
- https://doi.org/10.1128/jb.175.17.5710-5713.1993
Abstract
The ntcA gene from Synechococcus sp. strain PCC 7942 encodes a regulatory protein which is required for the expression of all of the genes known to be subject to repression by ammonium in that cyanobacterium. Homologs to ntcA have now been cloned by hybridization from the cyanobacteria Synechocystis sp. strain PCC 6803 and Anabaena sp. strain PCC 7120. Sequence analysis has shown that these ntcA genes would encode polypeptides strongly similar (77 to 79% identity) to the Synechococcus NtcA protein. Sequences hybridizing to ntcA have been detected in the genomes of nine other cyanobacteria that were tested, including strains of the genera Anabaena, Calothrix, Fischerella, Nostoc, Pseudoanabaena, Synechococcus, and Synechocystis.Keywords
This publication has 10 references indexed in Scilit:
- NtcA, a global nitrogen regulator from the cyanobacterium Synechococcus that belongs to the Crp family of bacterial regulatorsMolecular Microbiology, 1992
- Regulation of Anabaena sp. strain PCC 7120 glutamine synthetase activity in a Synechocystis sp. strain PCC 6803 derivative strain bearing the Anabaena glnA gene and a mutated host glnA geneJournal of Bacteriology, 1992
- Use of a conditionally lethal gene in Anabaena sp. strain PCC 7120 to select for double recombinants and to entrap insertion sequencesJournal of Bacteriology, 1990
- Identification and cloning of a regulatory gene for nitrogen assimilation in the cyanobacterium Synechococcus sp. strain PCC 7942Journal of Bacteriology, 1990
- Evolutionary relationships among cyanobacteria and green chloroplastsJournal of Bacteriology, 1988
- A versatile class of positive-selection vectors based on the nonviability of palindrome-containing plasmids that allows cloning into long polylinkersGene, 1988
- Different promoters for the Anabaena glutamine synthetase gene during growth using molecular or fixed nitrogenNature, 1983
- Genetic Relatedness of Heterocystous Cyanobacteria by Deoxyribonucleic Acid-Deoxyribonucleic Acid ReassociationInternational Journal of Systematic and Evolutionary Microbiology, 1981
- HeterocystsAnnual Review of Plant Physiology, 1978
- Effects of L-methionine-DL-sulphoximine on the assimilation of newly fixed NH3, acetylene reduction and heterocyst production in Anabaena cylindricaBiochemical and Biophysical Research Communications, 1975