PDB Data Distribution by Experimental Method and Molecular Type

Molecular TypeX-rayEMNMRMultiple methodsNeutronOtherTotal
Protein (only)168,01616,00912,5432087932196,887
Protein/Oligosaccharide9,6822,6993482012,425
Protein/NA8,7644,78528670013,842
Nucleic acid (only)2,8721421,51214314,544
Other1701033000213
Oligosaccharide (only)110610422
Total 189,51523,64514,4142388437227,933

PDB Structures with Experimental Data

179,595 have a structure factor file
11,505 have an NMR restraint file
6,038 have a chemical shifts file
4,219 have NMR unified data files (NEF and/or NMR-STAR format files)
23,142 3DEM maps were used for the determination of 23,373 PDB structures

PDB Structures with Small Molecule Data

172,887 with any non-polymer small molecules
171,326 with non-polymer small molecules of 100-300 Da
59,639 with non-polymer small molecules of 300-500 Da
40,959 with non-polymer small molecules of 500-1200 Da
38,906 with author-designated Ligand/s of Interest
4,538 with a biologically interesting short oligomer or oligomer-like BIRD molecules
12,605 with with branched entities of oligosaccharides