PDB Data Distribution by Experimental Method and Molecular Type

Molecular TypeX-rayEMNMRMultiple methodsNeutronOtherTotal
Protein (only)155,51810,47612,2061927232178,496
Nucleic acid (only)2,695991,45012214,259
Oligosaccharide (only)110610422
Total 175,66215,70014,0092187537205,701

PDB Structures with Experimental Data

165,703 have a structure factor file
11,361 have an NMR restraint file
5,894 have a chemical shifts file
19 have NMR unified data files (NEF and/or NMR-STAR format files)
15,241 3DEM maps were used for the determination of 15,440 PDB structures

PDB Structures with Small Molecule Data

155,816 with any non-polymer small molecules
154,360 with non-polymer small molecules of 100-300 Da
52,685 with non-polymer small molecules of 300-500 Da
36,178 with non-polymer small molecules of 500-1200 Da
26,785 with author-designated Ligand/s of Interest
4,358 with a biologically interesting short oligomer or oligomer-like BIRD molecules
11,200 with with branched entities of oligosaccharides