PDB Statistics: PDB Data Distribution by Molecular Weight (Entity)

Molecular weight is calculated for each chemically distinct component of a PDB structure, e.g. protein, nucleic acid.

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Molecular Weight (Daltons)Number of Entities
< 5K42,621
5K - 10K49,489
10K - 15K80,648
15K - 20K62,053
20K - 25K60,357
25K - 30K47,583
30K - 35K34,177
35K - 40K30,374
40K - 45K22,737
45K - 50K17,201
50K - 55K14,162
55K - 60K10,539
60K - 65K7,272
65K - 70K5,467
70K - 75K3,900
>= 75K32,367