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
< 5K46,667
5K - 10K57,547
10K - 15K93,815
15K - 20K72,577
20K - 25K70,100
25K - 30K54,313
30K - 35K39,053
35K - 40K34,978
40K - 45K25,838
45K - 50K20,428
50K - 55K16,573
55K - 60K12,272
60K - 65K8,439
65K - 70K6,513
70K - 75K4,640
>= 75K40,297