PDB Data Distribution by Experimental Method and Molecular Type

Molecular TypeX-rayEMNMRMultiple methodsNeutronOtherTotal
Protein (only)160,15812,05212,3161987332184,829
Nucleic acid (only)2,7301201,46814314,336
Oligosaccharide (only)110610422
Total 180,70818,03014,1412287737213,221

PDB Structures with Experimental Data

170,763 have a structure factor file
11,460 have an NMR restraint file
5,993 have a chemical shifts file
3,964 have NMR unified data files (NEF and/or NMR-STAR format files)
17,555 3DEM maps were used for the determination of 17,766 PDB structures

PDB Structures with Small Molecule Data

161,744 with any non-polymer small molecules
160,269 with non-polymer small molecules of 100-300 Da
55,348 with non-polymer small molecules of 300-500 Da
37,774 with non-polymer small molecules of 500-1200 Da
31,139 with author-designated Ligand/s of Interest
4,406 with a biologically interesting short oligomer or oligomer-like BIRD molecules
11,602 with with branched entities of oligosaccharides