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 - 20K25744
20K - 40K33549
40K - 60K24295
60K - 80K14729
80K - 100K10179
100K - 120K7357
120K - 140K4612
140K - 160K3371
160K - 180K2796
180K - 200K2052
200K - 220K1510
220K - 240K1327
240K - 260K908
260K - 280K698
280K - 300K548
300K - 320K460
320K - 340K414
340K - 360K404
360K - 380K317
> 380K4285