Miranda-Ríos J, Sánchez-Pescador R, Urdea M, Covarrubias A A
Nucleic Acids Res. 1987 Mar 25;15(6):2757-70. doi: 10.1093/nar/15.6.2757.
The nucleotide sequence of the E. coli glnALG operon has been determined. The glnL (ntrB) and glnG (ntrC) genes present a high homology, at the nucleotide and aminoacid levels, with the corresponding genes of Klebsiella pneumoniae. The predicted aminoacid sequence for glutamine synthetase allowed us to locate some of the enzyme domains. The structure of this operon is discussed.
已确定大肠杆菌谷氨酰胺合成酶操纵子(glnALG operon)的核苷酸序列。谷氨酰胺合成酶调节基因(glnL,即ntrB基因)和谷氨酰胺合成酶激活蛋白基因(glnG,即ntrC基因)在核苷酸和氨基酸水平上与肺炎克雷伯菌的相应基因具有高度同源性。谷氨酰胺合成酶的预测氨基酸序列使我们能够定位该酶的一些结构域。本文讨论了该操纵子的结构。