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
< 5K45,243
5K - 10K54,477
10K - 15K89,004
15K - 20K68,857
20K - 25K66,530
25K - 30K51,600
30K - 35K37,556
35K - 40K33,185
40K - 45K24,663
45K - 50K19,184
50K - 55K15,652
55K - 60K11,686
60K - 65K8,014
65K - 70K6,154
70K - 75K4,333
>= 75K37,252