PDB Data Distribution by Experimental Method and Molecular Type

Molecular TypeX-rayEMNMRIntegrativeMultiple methodsNeutronOtherTotal
Protein (only)177,82621,40212,7443432258432212,656
Protein/Oligosaccharide10,3313,499348111013,884
Protein/NA9,0706,1802872470015,568
Nucleic acid (only)3,1192201,561315314,922
Other17523334000235
Oligosaccharide (only)1106010422
Total 200,53231,32414,6653822598837247,287

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

190,671 have a structure factor file
11,505 have an NMR restraint file
6,038 have a chemical shifts file
4,473 have NMR unified data files (NEF and/or NMR-STAR format files)
30,777 3DEM maps were used for the determination of 31,017 PDB structures

PDB Structures with Small Molecule Data

187,320 with any non-polymer small molecules
185,645 with non-polymer small molecules of 100-300 Da
65,609 with non-polymer small molecules of 300-500 Da
45,286 with non-polymer small molecules of 500-1200 Da
49,314 with author-designated Ligand/s of Interest
4,675 with a biologically interesting short oligomer or oligomer-like BIRD molecules
14,080 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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