Protein structural motifs and surfaces true Protein structural features Protein surfaces Structural motifs Protein_structural_motifs_and_surfaces Protein structural motifs beta12orEarlier Protein 3D motifs This includes conformation of conserved substructures, conserved geometry (spatial arrangement) of secondary structure or protein backbone, solvent-exposed surfaces, internal cavities, the analysis of shape, hydropathy, electrostatic patches, role and functions etc. Structural features or common 3D motifs within protein structures, including the surface of a protein structure, such as biological interfaces with other molecules. Protein structure analysis