ID 2.7.1.213 DE cytidine kinase. CA ATP + cytidine = ADP + CMP + H(+). CC -!- The enzyme, characterized from the archaeon Thermococcus CC kodakarensis, participates in a pathway for nucleoside degradation. CC -!- The enzyme can also act on deoxycytidine and uridine, but unlike CC EC 2.7.1.48 it is most active with cytidine. DR Q5JEK6, CYDK_THEKO ; Q57849, NK_METJA ; Q9HJT3, NK_THEAC ; //