Serra Ana L, Mariscotti Javier F, Barra José L, Lucchesi Gloria I, Domenech Carlos E, Lisa Angela T
Departmento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, 5.800 Río Cuarto, Argentina.
J Bacteriol. 2002 Aug;184(15):4301-3. doi: 10.1128/JB.184.15.4301-4303.2002.
The gene for glycine betaine transmethylase (gbt) was identified in Pseudomonas aeruginosa strain Fildes III by biochemical, physiological, and molecular approaches. Based on sequence analysis, the knockout gene corresponded to an open reading frame (ORF) named PA3082 in the genome of P. aeruginosa PAO1. The translated product of this ORF displayed similarity to transferases of different microorganisms. Mutation in gbt blocked the utilization of choline and glycine betaine as carbon and nitrogen sources.
通过生化、生理和分子方法,在铜绿假单胞菌菲尔德斯三号菌株中鉴定出了甘氨酸甜菜碱转甲基酶(gbt)基因。基于序列分析,敲除基因对应于铜绿假单胞菌PAO1基因组中一个名为PA3082的开放阅读框(ORF)。该ORF的翻译产物与不同微生物的转移酶具有相似性。gbt基因的突变阻断了胆碱和甘氨酸甜菜碱作为碳源和氮源的利用。