>sp|A6USF2|APT_METVS Adenine phosphoribosyltransferase OS=Methanococcus vannielii GN=apt2 MDLRKKIRIIDDFPKKGISFKDVTPILKDPKSMKHTTKEITKYLEDKNIDVIVGPEARGF LFGILVAQELDLGFVPVRKPGKLPFKTFSVDYALEYGLDRLEIHSDSIEKGQNVAVVDDL LATGGTVLGVTKLVEKIGGNVSALSFVIELTNLNGRDKLKGYNVQSLVKYDDL