| abstract |
It is intended to provide a protein having an amino acid sequence represented by SEQ ID NO: 1, 2 or 30 having an activity to produce cytidine 5'-monophosphate (CMP) from cytosine, and a protein having an amino acid sequence in which in the amino acid sequence represented by SEQ ID NO: 1, 2 or 30, one or more amino acid residues selected from amino acid residues at positions 36, 46, 94, 102, 121, 141, 143, 167 and 198 have been substituted with another amino acid residue. |