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 - 20K27821
20K - 40K37766
40K - 60K27428
60K - 80K16713
80K - 100K11567
100K - 120K8400
120K - 140K5347
140K - 160K3933
160K - 180K3330
180K - 200K2442
200K - 220K1873
220K - 240K1571
240K - 260K1060
260K - 280K885
280K - 300K689
300K - 320K566
320K - 340K541
340K - 360K477
360K - 380K417
> 380K5723