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
< 5K45,442
5K - 10K54,890
10K - 15K89,640
15K - 20K69,375
20K - 25K67,049
25K - 30K51,947
30K - 35K37,761
35K - 40K33,427
40K - 45K24,800
45K - 50K19,348
50K - 55K15,851
55K - 60K11,817
60K - 65K8,080
65K - 70K6,207
70K - 75K4,371
>= 75K37,567