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
< 5K44,952
5K - 10K53,731
10K - 15K87,786
15K - 20K67,680
20K - 25K65,323
25K - 30K51,002
30K - 35K36,971
35K - 40K32,613
40K - 45K24,340
45K - 50K18,868
50K - 55K15,415
55K - 60K11,591
60K - 65K7,932
65K - 70K6,062
70K - 75K4,278
>= 75K36,657