PDB Data Distribution by Experimental Method and Molecular Type

Molecular TypeX-rayEMNMRIntegrativeMultiple methodsNeutronOtherTotal
Protein (only)179,28621,99312,7863432268432214,750
Protein/Oligosaccharide10,3883,611348111014,053
Protein/NA9,1406,4382872470015,896
Nucleic acid (only)3,1362221,568315314,948
Other17525334000237
Oligosaccharide (only)1106010422
Total 202,13632,28914,7143822608837249,906

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

192,276 have a structure factor file
11,505 have an NMR restraint file
6,038 have a chemical shifts file
4,522 have NMR unified data files (NEF and/or NMR-STAR format files)
31,733 3DEM maps were used for the determination of 31,982 PDB structures

PDB Structures with Small Molecule Data

189,220 with any non-polymer small molecules
187,536 with non-polymer small molecules of 100-300 Da
66,360 with non-polymer small molecules of 300-500 Da
45,817 with non-polymer small molecules of 500-1200 Da
50,688 with author-designated Ligand/s of Interest
4,694 with a biologically interesting short oligomer or oligomer-like BIRD molecules
14,251 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.

Mouse over to view the statistical description of the particular section; click on a section to zoom in that particular section's statistical distribution, and then click on the center bullseye to zoom out back to the previous distribution.