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