>2q4aA (A:) observed residues (from ATOM records)
lllvetpipqqkhyeskpfpavispppalslplftqtiktqkhyldsllhesgavlfrgf
pvnsaddfndvveafgfdelpyvggaaprtsvvgrvftanesppdqkipfhhemaqvref
psklffyceiepkcggetpivlshvvyermkdkhpefvqrleehgllyvrvlgedddpss
pigrgwkstflthdknlaeqravdlgmklewtedggaktvmgpipaikydesrnrkvwfn
smvaaytgwedkrndprkavtfgdgkplpadivhdclrileeecvavpwqrgdvllidnw
avlhsrrpfdpprrvlaslck