ID 2.7.1.226 DE L-serine kinase (ADP). CA ADP + L-serine = AMP + H(+) + O-phospho-L-serine. CC -!- The enzyme, characterized in the hyperthermophilic archaeon CC Thermococcus kodakarensis, participates in L-cysteine biosynthesis. DR Q5JD03, SERK_THEKO ; //