>1xslA (A:) observed residues (from ATOM records)
atnhnlhiteklevlakaysvqgdkwralgyakainalksfhkpvtsyqeacsipgigkr
maekiieilesghlrkldhisesvpvlelfsniwgagtktaqmwyqqgfrsledirsqas
lttqqaiglkhysdflermpreeateieqtvqkaaqafnsgllcvacgsyrrgkatcgdv
dvlithpdgrshrgifsrlldslrqegfltddlvsqeengqqqkylgvcrlpgpgrrhrr
ldiivvpysefacallyftgsahfnrsmralaktkgmslsehalstavvrnthgckvgpg
rvlptptekdvfrllglpyrepaerdw