>6fu6B (B:) observed residues (from ATOM records)
rintvrgpitiseagftlthehicgssagflrawpeffgsraalvekavrglrraraagv
rtivdvstfdigrdvsllaevsraadvhivaatglwedpplsmrlrsveeltqfflreiq
ygiedtgiragiikvatngkatpfqelvlraaaraslatgvpvtthtaasqrdgeqqaai
feseglspsrvcighsddtddlsyltalaargyligldgiphsaiglednasasallgnr
swqtrallikalidqgymkqilvsndwlfgfssyvtnimdvmdsvnpdgmafiplrvipf
lrekgvsqetlagitvtnparflsptlra