>2DXD_1|Chains A, B|Nucleoside diphosphate kinase|Pyrococcus horikoshii (strain ATCC 700860 / DSM 12428 / JCM 9974 / NBRC 100139 / OT-3) (70601) MFQMSETERTLVIIKPDAVVRGLIGEIISRFEKKGLKIVGMKMIWIDRELAEKHYEEHREKPFFKALIDYITKTPVVVMVLEGRYAVEVVRKMAGATDPKDAAPGTIRGDFGLEVSDAICNVIHASDSKESAEREISLFFKPEELFEYPRAADWFYKKGI