PDB Data Distribution by Experimental Method and Molecular Type

Molecular TypeX-rayEMNMRMultiple methodsNeutronOtherTotal
Protein (only)155,37110,42712,2001927232178,294
Nucleic acid (only)2,694991,45012214,258
Oligosaccharide (only)110610422
Total 175,50915,60914,0032187537205,451

PDB Structures with Experimental Data

165,550 have a structure factor file
11,355 have an NMR restraint file
5,888 have a chemical shifts file
17 have NMR unified data files (NEF and/or NMR-STAR format files)
15,150 3DEM maps were used for the determination of 15,349 PDB structures

PDB Structures with Small Molecule Data

155,624 with any non-polymer small molecules
154,168 with non-polymer small molecules of 100-300 Da
52,601 with non-polymer small molecules of 300-500 Da
36,137 with non-polymer small molecules of 500-1200 Da
26,661 with author-designated Ligand/s of Interest
4,358 with a biologically interesting short oligomer or oligomer-like BIRD molecules
11,170 with with branched entities of oligosaccharides