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
< 5K45,711
5K - 10K55,404
10K - 15K90,340
15K - 20K69,843
20K - 25K67,545
25K - 30K52,574
30K - 35K38,030
35K - 40K33,748
40K - 45K25,057
45K - 50K19,646
50K - 55K16,027
55K - 60K11,931
60K - 65K8,150
65K - 70K6,260
70K - 75K4,443
>= 75K38,074