FIELD: biotechnology, microbiology, amino acids.
SUBSTANCE: invention relates to a method for preparing L-histidine that is prepared by culturing microorganism of genus Escherichia with the enhanced activity of any enzyme taking part the conversion of 5'-phosphoribosyl-4-carboxamide-5-aminoimidazole to inosine-5'-monophosphate. Then the prepared L-histidine is isolated from the cultural fluid. The claimed invention provides preparing L-histidine with the high degree of effectiveness.
EFFECT: improved preparing method.
11 cl, 2 tbl, 2 ex
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