>4m81A (A:) observed residues (from ATOM records)
awdydnnvirgvnlggwfvlepymtpslfepfqngndqsgvpvdeyhwtqtlgkeaalri
lqkhwstwiteqdfkqisnlglnfvripigywafqlldndpyvqgqvqylekalgwarkn
nirvwidlhgapgsqngfdnsglrdsynfqngdntqvtlnvlntifkkyggneysdvvig
iellneplgpvlnmdklkqffldgynslrqtgsvtpviihdafqvfgywnnfltvaegqw
nvvvdhhhyqvfsggelsrnindhisvacnwgwdakkeshwnvagswsaaltdcakwlng
vnrgaryegaydnapyigscqplldisqwsdehktdtrryieaqldafeytggwvfwswk
tenapewsfqtltynglfpqpvtdrqfpnqcgfh