>3ztxB (B:) observed residues (from ATOM records)
talaempkrkftiddfdigrplgnvylarekqnkfimalkvlfksqlekegvehqlrrei
eiqshlrhpnilrmynyfhdrkriylmlefaprgelykelqkhgrfdeqrsatfmeelad
alhycherkvihrdikpenllmgykgelkiadfgwsvhapslrrrtmcgtldylppemie
gkthdekvdlwcagvlcyeflvgmppfdspshtethrrivnvdlkfppflsdgskdlisk
llryhppqrlplkgvmehpwvkansrrvlppvy