>2y7rB (B:) SEQRES residues
mdpfastrtfnlamtdigemyfmpplmealaqraphiqistlrpnagnlkedmesgavdl
algllpelqtgffqrrlfrhryvcmfrkdhpsakspmslkqfselehvgvvalntghgev
dglleragikrrmrlvvphfiaigpilhstdliatvpqrfavrcevpfglttsphpaklp
diainlfwhakynrdpgnmwlrqlfvelfseahhhhhh