>1f1bB (B:) SEQRES residues mthdnklqveaikrgtvidhipaqigfkllslfkltetdqritiglnlpsgemgrkdlik ientflsedqvdqlalyapqatvnridnyevvgksrpslperidnvlvcpnsncishaep vsssfavrkrandialkckycekefshnvvlan