>6h91B (B:) observed residues (from ATOM records)
mfkavlfdldgvitdtaeyhfrawkalaeeigingvdrqfneqlkgvsredslqkildla
dkkvsaeefkelakrkndnyvkmiqdvspadvypgilqllkdlrsnkikialasaskngp
fllermnltgyfdaiadpaevaaskpapdifiaaahavgvapsesigledsqagiqaikd
sgalpigvgrpedlgddivivpdtshytleflkevwlq