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 - 20K26157
20K - 40K34601
40K - 60K24901
60K - 80K15111
80K - 100K10460
100K - 120K7572
120K - 140K4725
140K - 160K3469
160K - 180K2912
180K - 200K2145
200K - 220K1585
220K - 240K1356
240K - 260K937
260K - 280K737
280K - 300K564
300K - 320K488
320K - 340K427
340K - 360K417
360K - 380K325
> 380K4503