FIELD: biotechnology.
SUBSTANCE: disclosed is a polypeptide involved in the production of IMP (5'-inosyl monophosphate), consisting of an amino acid sequence represented by SEQ ID NO: 1, in which alanine, which is an amino acid corresponding to position 122 in SEQ ID NO: 3 is replaced by threonine. Also disclosed is a polynucleotide coding said polypeptide, a Corynebacterium stationis microorganism producing IMP and containing said polypeptide or polynucleotide, as well as a method of producing IMP using said microorganism.
EFFECT: invention enables to obtain IMP with high output.
5 cl, 1 tbl, 2 ex
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