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 - 20K25555
20K - 40K33183
40K - 60K23946
60K - 80K14564
80K - 100K10041
100K - 120K7290
120K - 140K4577
140K - 160K3324
160K - 180K2757
180K - 200K2024
200K - 220K1492
220K - 240K1292
240K - 260K892
260K - 280K686
280K - 300K541
300K - 320K455
320K - 340K404
340K - 360K400
360K - 380K308
> 380K4186