PDB Data Distribution by Experimental Method and Molecular Type

Molecular TypeX-rayEMNMRMultiple methodsNeutronOtherTotal
Protein (only)154,0739,87912,1571917232176,404
Nucleic acid (only)2,655901,44712214,207
Oligosaccharide (only)110610422
Total 174,03814,76113,9562177537203,084

PDB Structures with Experimental Data

164,075 have a structure factor file
11,308 have an NMR restraint file
5,841 have a chemical shifts file
16 have NMR unified data files (NEF and/or NMR-STAR format files)
14,304 3DEM maps were used for the determination of 14,504 PDB structures

PDB Structures with Small Molecule Data

153,845 with any non-polymer small molecules
152,405 with non-polymer small molecules of 100-300 Da
51,843 with non-polymer small molecules of 300-500 Da
35,604 with non-polymer small molecules of 500-1200 Da
25,449 with author-designated Ligand/s of Interest
4,340 with a biologically interesting short oligomer or oligomer-like BIRD molecules
10,994 with branched entities of oligosaccharides