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 - 20K26382
20K - 40K35163
40K - 60K25221
60K - 80K15334
80K - 100K10614
100K - 120K7674
120K - 140K4804
140K - 160K3524
160K - 180K2972
180K - 200K2171
200K - 220K1618
220K - 240K1388
240K - 260K956
260K - 280K756
280K - 300K569
300K - 320K494
320K - 340K433
340K - 360K421
360K - 380K346
> 380K4633