>1usyF (F:) observed residues (from ATOM records)
mlklaipkgrleekvmtylkktgviferessilregkdivcfmvrpfdvptylvhgvadi
gfcgtdvlleketsliqpffiptnisrmvlagpkgrgipegekriatkfpnvtqrycesk
gwhcriiplkgsvelapiaglsdlivditetgrtlkennleildeifvirthvvvnpvsy
rtkreevvsfleklqeviehdsn