PDB Data Distribution by Experimental Method and Molecular Type

Molecular TypeX-rayEMNMRMultiple methodsNeutronOtherTotal
Protein (only)162,72613,16512,3682037432188,568
Protein/Oligosaccharide9,3972,2393482011,680
Protein/NA8,4484,07028670012,811
Nucleic acid (only)2,7821291,48914314,418
Other164933000206
Oligosaccharide (only)110610422
Total 183,52819,61214,2162337937217,705

PDB Structures with Experimental Data

173,594 have a structure factor file
11,492 have an NMR restraint file
6,025 have a chemical shifts file
4,022 have NMR unified data files (NEF and/or NMR-STAR format files)
19,129 3DEM maps were used for the determination of 19,346 PDB structures

PDB Structures with Small Molecule Data

165,173 with any non-polymer small molecules
163,664 with non-polymer small molecules of 100-300 Da
56,633 with non-polymer small molecules of 300-500 Da
38,797 with non-polymer small molecules of 500-1200 Da
33,573 with author-designated Ligand/s of Interest
4,447 with a biologically interesting short oligomer or oligomer-like BIRD molecules
11,855 with with branched entities of oligosaccharides