>3r9pB (B:) observed residues (from ATOM records)
arrvlvinsgssslkfqlvdpefgvaastgiverigespvpdhdaalrrafdmlagdgvd
lntaglvavghrvvhggntfyrptvlddaviarlhelselaplhnppalqgievarrllp
diahvavfdtgffhdlppaaatyaidreladrwqirrygfhgtshryvseqaaafldrpl
rglkqivlhlgngcsasaiagtrpldtsmgltpleglvmgtrsgdidpsivsylchtagm
gvddvesmlnhrsgvvglsgvrdfrrlreliesgdgaaqlaysvfthrlrkyigaylavl
ghtdvisftagigendaavrrdavsgmeelgivlderrnlaggkgarqisaddspitvlv
vptneelaiardcvrvlgg