| Literature DB >> 6329710 |
J Piette, R Cunin, F Van Vliet, D Charlier, M Crabeel, Y Ota, N Glansdorff.
Abstract
The argF and argI genes code for similar proteins able to assemble into hybrid isoenzymes and are therefore thought to share a common origin. We show here that the nucleotide sequence of the promoter and operator regions of these two genes are highly homologous. DNA regions preceding the control sites also present significant homologies. The results support the notion of divergent evolution of the two genes from a common ancestor. Like argE and argCBH , argF and argI are controlled by a repressor molecule recognizing a family of similar operator sites. Attenuation appears to play no role in this regulation.Entities:
Mesh:
Substances:
Year: 1982 PMID: 6329710 PMCID: PMC553121 DOI: 10.1002/j.1460-2075.1982.tb01259.x
Source DB: PubMed Journal: EMBO J ISSN: 0261-4189 Impact factor: 11.598