PDB Data Distribution by Experimental Method and Molecular Type

Molecular TypeX-rayEMNMRIntegrativeMultiple methodsNeutronOtherTotal
Protein (only)180,04022,51612,7993432288432216,042
Protein/Oligosaccharide10,4443,670348111014,168
Protein/NA9,1666,6092872680016,096
Nucleic acid (only)3,1532461,570315314,991
Other17527334000239
Oligosaccharide (only)1106010422
Total 202,98933,06814,7293842638837251,558

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

193,132 have a structure factor file
11,505 have an NMR restraint file
6,038 have a chemical shifts file
4,538 have NMR unified data files (NEF and/or NMR-STAR format files)
32,511 3DEM maps were used for the determination of 32,760 PDB structures

PDB Structures with Small Molecule Data

190,495 with any non-polymer small molecules
188,794 with non-polymer small molecules of 100-300 Da
66,890 with non-polymer small molecules of 300-500 Da
46,142 with non-polymer small molecules of 500-1200 Da
51,618 with author-designated Ligand/s of Interest
5,193 with a biologically interesting short oligomer or oligomer-like BIRD molecules
14,368 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.