>2i91B (B:) observed residues (from ATOM records)
mdqtqplnekqvpnsegcyvwqvsdmnrlrrflcfgseggtyyieekklgqenaeallrl
iedgkgcevvqeiktfsqegraakqeptlfalavcsqcsdiktkqaafravpevcripth
lftfiqfkkdlkwgralrkavsdwyntkdalnlamavtkykqrngwshkdllrlshikpa
negltmvakyvskgwkevqeaykekelspetekvlkyleatervkrtkdeleiihlidey
rlvrehlltihlkskeiwksllqdmpltallrnlgkmtadsvlapassevssvcerltne
kllkkarihpfhilvaletykkghgnrgklrwipdtsivealdnafyksfklveptgkrf
llaidvsasmnqrvlgsilnasvvaaamcmlvartekdshmvafsdemlpcpitvnmllh
evvekmsditmgstdcalpmlwaqktntaadifivftdcetnvedvhpatalkqyrekmg
ipaklivcamtsngfsiadpddrgmldicgfdsgaldvirnftldl