>sp|Q57849|NK_METJA Nucleoside kinase OS=Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440) OX=243232 GN=MJ0406 PE=1 SV=1 MGGKMEKITCVGHTALDYIFNVEKFPEPNTSIQIPSARKYYGGAAANTAVGIKKLGVNSE LLSCVGYDFKNSGYERYLKNLDINISKLYYSEEEETPKAWIFTDKDNNQITFFLWGAAKH YKELNPPNFNTEIVHIATGDPEFNLKCAKKAYGNNLVSFDPGQDLPQYSKEMLLEIIEHT NFLFMNKHEFERASNLLNFEIDDYLERVDALIVTKGSKGSVIYTKDKKIEIPCIKAGKVI DPTGAGDSYRAGFLSAYVKGYDLEKCGLIGAATASFVVEAKGCQTNLPTWDKVVERLEKH RI