Zinchenko V V, Shestopalov V I, Churin Iu N
Biokhimiia. 1995 Sep;60(9):1429-34.
A comparative analysis of the amino acid sequence of glutamine synthetase (GS) of the photosynthetic purple bacterium Rhodobacter sphaeroides revealed that the enzyme is typical for first type procaryotic GSs and structurally resembles GSs of enteric bacteria. The data obtained indicate that the complex phenotype of purple bacterial mutants at the glnA gene coding for GS may be conditioned by specific regulation of nitrogen metabolism in bacterial cells rather than by structural-and-functional peculiarities of GS.
对光合紫色细菌球形红杆菌谷氨酰胺合成酶（GS）的氨基酸序列进行的比较分析表明，该酶是典型的第一类原核GS，在结构上类似于肠道细菌的GS。所获得的数据表明，编码GS的glnA基因处紫色细菌突变体的复杂表型可能由细菌细胞中氮代谢的特定调节决定，而非由GS的结构和功能特性决定。
