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
< 5K46,074
5K - 10K56,386
10K - 15K91,988
15K - 20K71,071
20K - 25K68,664
25K - 30K53,283
30K - 35K38,434
35K - 40K34,170
40K - 45K25,332
45K - 50K20,019
50K - 55K16,222
55K - 60K12,043
60K - 65K8,252
65K - 70K6,362
70K - 75K4,518
>= 75K39,067