>4k4hM (M:) observed residues (from ATOM records)
atnhnlhiteklevlakaysvqgdkwralgyakainalksfhkpvtsyqeacsipgigkr
maekiieilesghlrkldhisesvpvlelfsniwgagtktaqmwyqqgfrsledirsqas
lttqqaiglkhysdflermpreeateieqtvqkaaqafnsgllcvacgsyrrgkatcgdv
dvlithpdgrshrgifsrlldslrqegfltddlvsqeengqqqkylgvcrlpgpgrrhrr
ldiivvpysefacallyftgsahfnrsmralaktkgmslsehalstavvrckvgpgrvlp
tptekdvfrllglpyrepaerdwle