substructure (motif) queries. d1ubia_ (all SSEs) and β-grasp motif query (darker shaded SSEs only) structures (left), and 3D structure of the canonical active serpin, α1-antitrypsin, PDB id 1QLP, showing the B/C sheet used as the substructure query as the darker shaded SSEs (right). Images created with PyMOL .
Stivala et al. BMC Bioinformatics 2010 11:446 doi:10.1186/1471-2105-11-446