PDB Data Distribution by Experimental Method and Molecular Type
| Molecular Type | X-ray | EM | NMR | Integrative | Multiple methods | Neutron | Other | Total |
|---|---|---|---|---|---|---|---|---|
| Protein (only) | 180,758 | 23,111 | 12,813 | 348 | 229 | 84 | 32 | 217,375 |
| Protein/Oligosaccharide | 10,488 | 3,741 | 34 | 8 | 11 | 1 | 0 | 14,283 |
| Protein/NA | 9,205 | 6,751 | 287 | 26 | 8 | 0 | 0 | 16,277 |
| Nucleic acid (only) | 3,154 | 250 | 1,578 | 3 | 15 | 3 | 1 | 5,004 |
| Other | 178 | 27 | 35 | 4 | 0 | 0 | 0 | 244 |
| Oligosaccharide (only) | 11 | 0 | 6 | 0 | 1 | 0 | 4 | 22 |
| Total | 203,794 | 33,880 | 14,753 | 389 | 264 | 88 | 37 | 253,205 |
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
PDB Structures with Small Molecule Data
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.
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.














