File extension .zip. Display Provides a view of the data file in either PDB or mmCIF format. The mmCIF format is described in the mmCIF dictionary. Structural Neighbors Provides access to the most common methods for finding and analyzing structures which have 3-D structure homology to the protein currently being explored. There is currently no exact solution to finding 3-D structure homologs.
All methods require making assumptions to be computationally tractable.
These assumptions lead to somewhat different results, particularly when the homology is weak. Difference in detected homology leads to differences in alignment. It is strongly suggested that users try all available methods in an effort to understand more about structural homology to their known starting protein. Geometry Provides details of the geometry of the structure under study in either tabular or graphical form. The FDS is the mean of all standard deviations in all main chain and side chain bond lengths, bond angles, and dihedral bond angles for that residue.