_:vb51020743 . . . _:vb51020744 . _:vb51020744 . _:vb51020743 . _:vb51020743 "19.51"^^ . _:vb51020744 . "Protein Engineering and Molecular Enzymology" . _:vb51020744 "49000.0"^^ . . _:vb51020743 .