PDB Data Distribution by Experimental Method and Molecular Type

Molecular TypeX-rayEMNMRIntegrativeMultiple methodsNeutronOtherTotal
Protein (only)180,75823,11112,8133482298432217,375
Protein/Oligosaccharide10,4883,741348111014,283
Protein/NA9,2056,7512872680016,277
Nucleic acid (only)3,1542501,578315315,004
Other17827354000244
Oligosaccharide (only)1106010422
Total 203,79433,88014,7533892648837253,205

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

193,950 have a structure factor file
11,505 have an NMR restraint file
6,038 have a chemical shifts file
4,562 have NMR unified data files (NEF and/or NMR-STAR format files)
33,312 3DEM maps were used for the determination of 33,560 PDB structures

PDB Structures with Small Molecule Data

191,717 with any non-polymer small molecules
190,009 with non-polymer small molecules of 100-300 Da
67,466 with non-polymer small molecules of 300-500 Da
46,595 with non-polymer small molecules of 500-1200 Da
52,521 with author-designated Ligand/s of Interest
5,221 with a biologically interesting short oligomer or oligomer-like BIRD molecules
14,483 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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