>sp|Q7VDB6|KGUA_PROMA Guanylate kinase OS=Prochlorococcus marinus GN=gmk MTNYNGLIVITGPSGVGKGTLVKKLLLENPEIWLSISATTRTPREGEINGKDYFFLNKKE FIDLVDKEGFLEWAEFAGNFYGTPRAQAQEKISVGKKVLLEIELDGARQVRKTFPEGFQI FIAPPSFEELEKRIRTRGTDSELAIQSRLNRAKEELLAKNEFDAIVINDQLDIALLEIKK LIKS