>sp|Q46JK2|NADK2_PROMT NAD kinase 2 OS=Prochlorococcus marinus GN=nadK2 MPRVGLIVNDGKELAVKTAKTFQKKLEDSGFEVVRVSSAGGLLGFTNPDQYMSSQGYNSC IPEGFDSSILFAVVLGGDGTVLSAARQTAPLGIPILTVNTGHLGFLAEAYLSDIDKIFKH LVARQWSIEKRTSLVVSVMRGDQCRWEALCLNEMALHREPMTSMCHFEISVGRHAPVDIS ADGVILSTPTGSTAYSLSAGGPVITPDCPVLQLTPVSPHSLASRALVFSNEEPVTVFPAT PERLMMVVDGSAGCYVWPEDRVLIRKSDHPVKFIRLSDHEFFQVLRNKLGWGLPHVAKPD KT