PDB Data Distribution by Experimental Method and Molecular Type

Molecular TypeX-rayEMNMRMultiple methodsNeutronOtherTotal
Protein (only)167,19215,57212,5292087732195,610
Protein/Oligosaccharide9,6392,6353482012,318
Protein/NA8,7304,69728670013,720
Nucleic acid (only)2,8691371,50714314,531
Other1701033000213
Oligosaccharide (only)110610422
Total 188,61123,05114,3952388237226,414

PDB Structures with Experimental Data

178,689 have a structure factor file
11,505 have an NMR restraint file
6,038 have a chemical shifts file
4,200 have NMR unified data files (NEF and/or NMR-STAR format files)
22,554 3DEM maps were used for the determination of 22,779 PDB structures

PDB Structures with Small Molecule Data

171,701 with any non-polymer small molecules
170,144 with non-polymer small molecules of 100-300 Da
59,257 with non-polymer small molecules of 300-500 Da
40,625 with non-polymer small molecules of 500-1200 Da
38,021 with author-designated Ligand/s of Interest
4,533 with a biologically interesting short oligomer or oligomer-like BIRD molecules
12,498 with with branched entities of oligosaccharides