>sp|O27269|PURP_METTH 5-formaminoimidazole-4-carboxamide-1-(beta)-D-ribofuranosyl 5'-monophosphate synthetase OS=Methanothermobacter thermautotrophicus GN=purP MSKVNRDEILDILEGYSREDITVATLGSHTSLHILNGAKQEGFKTAVVCEKGREVPYQRF RVADEFIMVDKFSDIVNDDVQDELRSMNSIIVPHGSFVAYAGLDHIENDFYVPMFGNRDI LRWESERDLERKLMEEAGIRIPFKYTDPEEIDRTVMVKFPGARGGRGYFVASSTEEFNEK IDSMLERGWITEDDVKDAHIEEYIAGTNFCIHYFYSIMNDEVELMGMDSRFESNIDGLVR IPARDQLDINLDPSYVITGNHPVAMRESLLPQAFDMGDRMVEAASKIVPPGMNGPFCLQT MCTDNLEIVTFEMSARTDGGTNTFMHGSTYSYLLHGEGMSMGRRVAREIRVAAEQDRLPE IIT