PDB Statistics: 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.

Chart is currently loading
Molecular Weight (Daltons)Number of Entries
< 20K30204
20K - 40K42628
40K - 60K31294
60K - 80K19077
80K - 100K13286
100K - 120K9563
120K - 140K6321
140K - 160K4773
160K - 180K3969
180K - 200K2893
200K - 220K2283
220K - 240K1886
240K - 260K1412
260K - 280K1179
280K - 300K884
300K - 320K740
320K - 340K709
340K - 360K638
360K - 380K553
>= 380K7884