Kim S I, Germond J E, Pridmore D, Söll D
Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut 06520-8114, USA.
J Bacteriol. 1996 Apr;178(8):2459-61. doi: 10.1128/jb.178.8.2459-2461.1996.
Genes encoding the ammonia-dependent asparagine synthetase (asnA) and asparaginyl-tRNA synthetase (asnS) have been cloned from Lactobacillus bulgaricus ATCC 11842. The nucleotide sequence suggests that asnA and asnS are organized as one operon and regulated by the tRNA-directed transcription antitermination mechanism (T. M. Henkin, Mol. Microbiol. 13:381-387, 1994).
编码氨依赖性天冬酰胺合成酶(asnA)和天冬酰胺-tRNA合成酶(asnS)的基因已从保加利亚乳杆菌ATCC 11842中克隆出来。核苷酸序列表明,asnA和asnS被组织成一个操纵子,并受tRNA指导的转录抗终止机制调控(T.M.亨金,《分子微生物学》13:381 - 387,1994年)。