>2q4aB (B:) observed residues (from ATOM records)
aelllvetpipqqkhyeskpfpavisppsasipipalslplftqtiktqkhyldsllhes
gavlfrgfpvnsaddfndvveafgfdelpytsvvgrvftanesppdqkipfhhemaqvre
fpsklffyceiepkcggetpivlshvvyermkdkhpefvqrleehgllyvrvlgedddps
spigrgwkstflthdknlaeqravdlgmklewtedggaktvmgpipaikydesrnrkvwf
nsmvaaytgwedkrndprkavtfgdgkplpadivhdclrileeecvavpwqrgdvllidn
wavlhsrrpfdpprrvlaslck