PDB Data Distribution by Experimental Method and Molecular Type

Molecular TypeX-rayEMNMRMultiple methodsNeutronOtherTotal
Protein (only)163,91613,74612,4002047432190,372
Protein/Oligosaccharide9,4562,3233482011,823
Protein/NA8,5104,20028670013,003
Nucleic acid (only)2,8011361,48814314,443
Other164933000206
Oligosaccharide (only)110610422
Total 184,85820,41414,2472347937219,869

PDB Structures with Experimental Data

174,927 have a structure factor file
11,505 have an NMR restraint file
6,037 have a chemical shifts file
4,050 have NMR unified data files (NEF and/or NMR-STAR format files)
19,930 3DEM maps were used for the determination of 20,146 PDB structures

PDB Structures with Small Molecule Data

166,920 with any non-polymer small molecules
165,404 with non-polymer small molecules of 100-300 Da
57,308 with non-polymer small molecules of 300-500 Da
39,242 with non-polymer small molecules of 500-1200 Da
34,719 with author-designated Ligand/s of Interest
4,452 with a biologically interesting short oligomer or oligomer-like BIRD molecules
11,998 with with branched entities of oligosaccharides