PDB Data Distribution by Experimental Method and Molecular Type

Molecular TypeX-rayEMNMRIntegrativeMultiple methodsNeutronOtherTotal
Protein (only)177,18220,86812,7273432248432211,460
Protein/Oligosaccharide10,3023,429348111013,785
Protein/NA9,0226,0442872470015,384
Nucleic acid (only)3,1132101,557315314,902
Other17414334000225
Oligosaccharide (only)1106010422
Total 199,80430,56514,6443822588837245,778

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

189,940 have a structure factor file
11,505 have an NMR restraint file
6,038 have a chemical shifts file
4,452 have NMR unified data files (NEF and/or NMR-STAR format files)
30,019 3DEM maps were used for the determination of 30,260 PDB structures

PDB Structures with Small Molecule Data

186,222 with any non-polymer small molecules
184,550 with non-polymer small molecules of 100-300 Da
65,158 with non-polymer small molecules of 300-500 Da
44,933 with non-polymer small molecules of 500-1200 Da
48,459 with author-designated Ligand/s of Interest
4,669 with a biologically interesting short oligomer or oligomer-like BIRD molecules
13,972 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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