PDB Data Distribution by Experimental Method and Molecular Type

Molecular TypeX-rayEMNMRMultiple methodsNeutronOtherTotal
Protein (only)170,56617,28012,5982108432200,770
Protein/Oligosaccharide9,9762,89834102012,920
Protein/NA8,8205,17728670014,290
Nucleic acid (only)2,9071661,52314314,614
Other1701033000213
Oligosaccharide (only)110610422
Total 192,45025,53114,4802428937232,829

PDB Structures with Experimental Data

182,541 have a structure factor file
11,505 have an NMR restraint file
6,038 have a chemical shifts file
4,285 have NMR unified data files (NEF and/or NMR-STAR format files)
25,021 3DEM maps were used for the determination of 25,257 PDB structures

PDB Structures with Small Molecule Data

176,671 with any non-polymer small molecules
175,071 with non-polymer small molecules of 100-300 Da
61,265 with non-polymer small molecules of 300-500 Da
42,036 with non-polymer small molecules of 500-1200 Da
41,659 with author-designated Ligand/s of Interest
4,563 with a biologically interesting short oligomer or oligomer-like BIRD molecules
13,100 with with branched entities of oligosaccharides