>4p61B (B:) observed residues (from ATOM records)
aprkffvggnwkmngdkkslgelihtlngaklsadtevvcgapsiyldfarqkldakigv
aaqncykvpkgaftgeispamikdigaawvilghserrhvfgesdeligqkvahalaegl
gviacigekldereagitekvvfeqtkaiadnvkdwskvvlayeppatpqqaqevheklr
gwlkshvsdavaqstriiyggsvtggnckelasqhdvdgflvggaslkpefvdiinakh