PDB Data Distribution by Experimental Method and Molecular Type

Molecular TypeX-rayEMNMRIntegrativeMultiple methodsNeutronOtherTotal
Protein (only)174,42319,43412,6683372178332207,194
Protein/Oligosaccharide10,1933,263348111013,510
Protein/NA8,9495,7062862470014,972
Nucleic acid (only)2,9931891,544215314,747
Other17113333000220
Oligosaccharide (only)1106010422
Total 196,74028,60514,5713742518737240,665

Multiple Methods: Atomic structures substantially underpinned by more than one experimental method currently supported by the PDB archive (NMR, 3DEM, or crystallography/diffraction) with or without some additional data provided by currently unsupported methods.

Integrative Methods: Atomic structures with all data coming from currently unsupported methods by the PDB, or only partially underpinned by an experimental method currently supported by the PDB, or partially/entirely non-atomic structures supported by the PDB-IHM.

PDB Structures with Experimental Data

186,865 have a structure factor file
11,505 have an NMR restraint file
6,038 have a chemical shifts file
4,379 have NMR unified data files (NEF and/or NMR-STAR format files)
28,068 3DEM maps were used for the determination of 28,303 PDB structures

PDB Structures with Small Molecule Data

182,531 with any non-polymer small molecules
180,889 with non-polymer small molecules of 100-300 Da
63,613 with non-polymer small molecules of 300-500 Da
43,723 with non-polymer small molecules of 500-1200 Da
45,770 with author-designated Ligand/s of Interest
4,632 with a biologically interesting short oligomer or oligomer-like BIRD molecules
13,694 with with branched entities of oligosaccharides

Inner most layer represents the distribution by experimental methods, X-ray is shown in blue; EM in orange; NMR in green; Integrative in Red; Multiple methods in yellow; Neutron in pink; Other in grey. Outer most layer further shows the distribution by molecular type of each correspond experimental method.

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