>1u3gA (A:) observed residues (from ATOM records)
mdknalrkqilqkrmalstiekshldqkinqklvafltpkpciktialyepiknevtfvd
fffeflkinqiravypkvisdteiifidqetntfepnqidcfliplvgfnkdnyrlgfgk
gyydrylmqltrqqpkigiaysfqkgdfladpwdvqldliinde