PDB Data Distribution by Experimental Method and Molecular Type

Molecular TypeX-rayEMNMRMultiple methodsNeutronOtherTotal
Protein (only)164,01813,81612,4022047432190,546
Protein/Oligosaccharide9,4652,3403482011,849
Protein/NA8,5234,23128670013,047
Nucleic acid (only)2,8011361,48814314,443
Other164933000206
Oligosaccharide (only)110610422
Total 184,98220,53214,2492347937220,113

PDB Structures with Experimental Data

175,051 have a structure factor file
11,505 have an NMR restraint file
6,037 have a chemical shifts file
4,052 have NMR unified data files (NEF and/or NMR-STAR format files)
20,048 3DEM maps were used for the determination of 20,264 PDB structures

PDB Structures with Small Molecule Data

167,098 with any non-polymer small molecules
165,582 with non-polymer small molecules of 100-300 Da
57,391 with non-polymer small molecules of 300-500 Da
39,303 with non-polymer small molecules of 500-1200 Da
34,822 with author-designated Ligand/s of Interest
4,455 with a biologically interesting short oligomer or oligomer-like BIRD molecules
12,024 with with branched entities of oligosaccharides