>1VMK_1|Chains A, B, C|purine nucleoside phosphorylase|Thermotoga maritima (243274) MGSDKIHHHHHHMMKKIEEARTFISERTNLSPDILIILGSGFGPFIEKVEDPVIIDYKDIPHFPQPTVEGHSGKLVFGRISDKPVMIMAGRFHLYEGHDPATVAFPVYLAKYVGVKGVVVTNAAGAINPEFKPGEIILVRDIINFMFRNPLRGPNDEKIGPRFPDMSSVVDPEWARKIQERLSLKEGVYIGVLGPSYETPAEIRVFEKLGADLVGMSTVPEVIAAKHCGLKVVVFSCVTNMAAGITHGRLSHEEVVRTTKMAQGKIEKALTTAVEVF