Mikroorganismen für die Produktion von Tryptophan und Verfahren zu ihrer Herstellung
摘要
Microorganisms for the production of tryptophan and a process for producing the same are disclosed. These microorganisms are characterised by a deregulated tryptophan metabolism and by a feedback-resistant serA-allele deregulated serine metabolism. When the disclosed strains were fermented, it has been surprisingly shown that the strains with the highest tryptophan yield are those which contain a feedback-resistant serA-allele with a Ki value for serine from 100 mu M to 50 mM and a deregulated tryptophan metabolism having a trpE-allele with a Ki value for tryptophan from 0.1 mM to 20 mM.
申请公布号
DE4232468(A1)
申请公布日期
1994.03.31
申请号
DE19924232468
申请日期
1992.09.28
申请人
CONSORTIUM FUER ELEKTROCHEMISCHE INDUSTRIE GMBH, 81379 MUENCHEN, DE