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
< 5K40,953
5K - 10K46,077
10K - 15K75,029
15K - 20K57,731
20K - 25K56,533
25K - 30K44,722
30K - 35K32,348
35K - 40K28,891
40K - 45K21,377
45K - 50K16,022
50K - 55K13,285
55K - 60K9,759
60K - 65K6,768
65K - 70K5,050
70K - 75K3,571
>= 75K29,116