PDB Data Distribution by Experimental Method and Molecular Type

Molecular TypeX-rayEMNMRMultiple methodsNeutronOtherTotal
Protein (only)153,8869,82112,1541917232176,156
Nucleic acid (only)2,645781,44312214,181
Oligosaccharide (only)110610422
Total 173,82214,66513,9482177537202,764

PDB Structures with Experimental Data

163,859 have a structure factor file
11,300 have an NMR restraint file
5,833 have a chemical shifts file
16 have NMR unified data files (NEF and/or NMR-STAR format files)
14,208 3DEM maps were used for the determination of 14,408 PDB structures

PDB Structures with Small Molecule Data

153,580 with any non-polymer small molecules
152,162 with non-polymer small molecules of 100-300 Da
51,706 with non-polymer small molecules of 300-500 Da
35,543 with non-polymer small molecules of 500-1200 Da
25,272 with author-designated Ligand/s of Interest
4,337 with a biologically interesting short oligomer or oligomer-like BIRD molecules
10,961 with branched entities of oligosaccharides