>sp|C6A187|KCY_THESM Cytidylate kinase OS=Thermococcus sibiricus (strain DSM 12597 / MM 739) OX=604354 GN=cmk PE=3 SV=1 MSRKCLVITVSGLAGSGTTTLCRNLSRYYGFKHIYAGLIFRQMAKEMGMSLQQFQEYAEM HPEIDREVDRRQIEAAEDCNVVIEGRLAGWMVKEADLKVWLEAPIQVRAQRVARREGISI EEAFMQIAEREMQNRKRYLNLYGIDINDRSIYDLVINTFKWGPDGVFAIVKAAIDHLYPD GDAGSGANPGNKS