PDB Statistics: PDB Data Distribution by Experimental Method and Molecular Type

PDB Data Distribution by Experimental Method and Molecular Type

Molecular Type	X-ray	EM	NMR	Integrative	Multiple methods	Neutron	Other	Total
Protein (only)	183,329	24,824	12,869	352	231	86	32	221,723
Protein/Oligosaccharide	10,643	3,947	34	8	11	1	0	14,644
Protein/NA	9,275	7,247	287	27	8	0	0	16,844
Nucleic acid (only)	3,193	331	1,592	3	15	3	1	5,138
Other	178	27	35	4	0	0	0	244
Oligosaccharide (only)	11	1	6	0	1	0	4	23
Total	206,629	36,377	14,823	394	266	90	37	258,616

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

196,796 have a structure factor file
11,505 have an NMR restraint file
6,038 have a chemical shifts file
4,632 have NMR unified data files (NEF and/or NMR-STAR format files)
35,796 3DEM maps were used for the determination of 36,050 PDB structures

PDB Structures with Small Molecule Data

195,806 with any non-polymer small molecules
193,997 with non-polymer small molecules of 100-300 Da
69,175 with non-polymer small molecules of 300-500 Da
47,732 with non-polymer small molecules of 500-1200 Da
55,483 with author-designated Ligand/s of Interest
5,261 with a biologically interesting short oligomer or oligomer-like BIRD molecules
14,845 with with branched entities of oligosaccharides

Sunburst Chart for Experimental Method and Molecular Type

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.

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