PDB Data Distribution by Molecular Weight (Structure)

All macromolecules, small molecules, and ions are included, except for water molecules. Molecular weight is calculated for all atoms, including those not observed in the experiment. Molecular weight of all non-water atoms in the asymmetric unit.

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Molecular Weight (Daltons)Number of Entries
0 - 20K26537
20K - 40K35429
40K - 60K25425
60K - 80K15518
80K - 100K10724
100K - 120K7746
120K - 140K4876
140K - 160K3564
160K - 180K3007
180K - 200K2195
200K - 220K1654
220K - 240K1394
240K - 260K965
260K - 280K776
280K - 300K583
300K - 320K502
320K - 340K440
340K - 360K425
360K - 380K353
> 380K4748