>2z43B (B:) observed residues (from ATOM records)
ktindlpgisqtvinklieagyssletlavaspqdlsvaagiplstaqkiikeardaldi
rfktalevkkermnvkkistgsqaldgllaggietrtmteffgefgsgktqlchqlsvnv
qlppekgglsgkavyidtegtfrwerienmakalgldidnvmnniyyiraintdhqiaiv
ddlqelvskdpsiklivvdsvtshfraeypgrenlavrqqklnkhlhqltrlaevydiav
iitnqvpgiriqlkksrgnrriarvvdaphlpegevvfalteegirdaee