| 摘要 |
PURPOSE:To provide the subject DNA fragment, derived from Xanthomonas microbes, useful for producing ALA, vitamin B12, etc. CONSTITUTION:The objective DNA fragment can be obtained by extracting genome DNA from Xanthomonas microbes such as Xanthomonas phaseoli HUT-8925 followed by nicking using e.g. restriction enzyme. Using transformant cells holding a recombinant DNA containing this fragment, glutamic acid-1- semialdehydeaminotransferase can be obtained. |
