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 - 20K26775
20K - 40K35833
40K - 60K25775
60K - 80K15747
80K - 100K10961
100K - 120K7831
120K - 140K4975
140K - 160K3627
160K - 180K3055
180K - 200K2258
200K - 220K1686
220K - 240K1406
240K - 260K982
260K - 280K789
280K - 300K619
300K - 320K509
320K - 340K468
340K - 360K432
360K - 380K362
> 380K4879