>sp|A7I5R5|KCY_METB6 Cytidylate kinase OS=Methanoregula boonei GN=cmk MRITVSGLPGSGTTSLSRYLSERYGFTMISAGEVFRQCAKEHNMELAEFGRLAEKDPAYD KMIDARQKEIAEKSDNIIVEGRLSGWMVENADLKIWLFAPISCRLDRIVFRDQIADVETA KAITLEREHCEAIRYQQYYSIDINDHSVYHLILNSEHWGVDDLGKIVAAAIDQLKKTPFA AS