PDB Data Distribution by Experimental Method and Molecular Type

Molecular TypeX-rayEMNMRMultiple methodsNeutronOtherTotal
Protein (only)158,16411,43812,2721977332182,176
Nucleic acid (only)2,7271091,46613314,319
Oligosaccharide (only)110610422
Total 178,56917,17814,0932267737210,180

PDB Structures with Experimental Data

168,622 have a structure factor file
11,430 have an NMR restraint file
5,963 have a chemical shifts file
3,921 have NMR unified data files (NEF and/or NMR-STAR format files)
16,692 3DEM maps were used for the determination of 16,907 PDB structures

PDB Structures with Small Molecule Data

159,281 with any non-polymer small molecules
157,810 with non-polymer small molecules of 100-300 Da
54,238 with non-polymer small molecules of 300-500 Da
37,145 with non-polymer small molecules of 500-1200 Da
29,252 with author-designated Ligand/s of Interest
4,377 with a biologically interesting short oligomer or oligomer-like BIRD molecules
11,463 with with branched entities of oligosaccharides