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
< 5K38,752
5K - 10K41,771
10K - 15K68,112
15K - 20K52,067
20K - 25K51,822
25K - 30K41,385
30K - 35K30,006
35K - 40K26,592
40K - 45K19,693
45K - 50K14,745
50K - 55K12,010
55K - 60K8,904
60K - 65K6,204
65K - 70K4,498
70K - 75K3,161
>= 75K25,253