Unstable Mutations for Constitutive Synthesis of Tyramine Oxidase and Arylsulfatase Inklebsiella Aerogenes
Agricultural and biological chemistry(1980)
摘要
Mutants of Klebsiella aerogenes that synthesized tyramine oxidase and arylsulfatase constitutively were isolated. The properties of four of seven constitutive mutants isolated were unstable, segregating spontaneously to the parental type at high frequency. Some of these segregants also lost arylsulfatase (AtsA-) or tyramine oxidase (TynA-) spontaneously. These unstable constitutive mutations were shown by genetic analysis to involve mutations of tynP and tynR, and transductants receiving the tynP gene were also unstable. These results showed that the instability was due to unstable tynP gene, which may be the promoter region for tyramine oxidase.
更多查看译文
关键词
Amino Acid Transporters
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要