>1v4jB (B:) observed residues (from ATOM records)
nsyelekvkerieqilsqffpeqimkdlplygkmlrvrlsilsfknrgveigedaissla
alelyhlasllhddvidgarfrrgketinfmygdkaavaagdlvlvsafhtveeignnkl
rraflnvigkmseaelieqlsrykpitkeeylrivegksgalfglalqlpallegelged
lynlgvtigtiyqmfddimdfagmekigkdgfldlkngvasfplvtamekfpearqmfen
rdwsglmsfmrekgilkeceetlkvlvknviienswlrdf