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 - 20K28001
20K - 40K38208
40K - 60K27910
60K - 80K16945
80K - 100K11744
100K - 120K8504
120K - 140K5427
140K - 160K4011
160K - 180K3389
180K - 200K2501
200K - 220K1922
220K - 240K1602
240K - 260K1089
260K - 280K895
280K - 300K703
300K - 320K581
320K - 340K548
340K - 360K505
360K - 380K429
> 380K5882