>sp|O27272|PUR5_METTH Phosphoribosylformylglycinamidine cyclo-ligase OS=Methanothermobacter thermautotrophicus GN=purM MVTYSESGVDIDLEELTVSSLTSRLSDTLKYCDVITGAGHFAALVRMGDVAIAMSTDGVG SKILVAEMMNRYDTVGIDCIAMVVNDILCVGARPAALVDYLAVERPDPEVAGEIGKGLAM GAEMARVAIIGGETASLPGIIRNLDLAATGIGFVDVDRIITGEDVSPGDTVIGLESSGIH SNGLSLARRVFFDELELSPEDEMPGSSSSVGDELLRPTRIYVEPIMELIESDVDVHGLAH ITGGGFGNLKRLRKDVGYRLDSLPEPQQIFRVIHEAGVDIREMYRVFNMGVGFCAVVAPD DVDEALSILGDRAHPIGEVTDRGSEVELEACTGETIKL