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
< 5K44,431
5K - 10K52,889
10K - 15K86,093
15K - 20K66,312
20K - 25K63,974
25K - 30K50,339
30K - 35K36,396
35K - 40K32,120
40K - 45K23,930
45K - 50K18,522
50K - 55K15,200
55K - 60K11,435
60K - 65K7,795
65K - 70K5,973
70K - 75K4,204
>= 75K35,804