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
< 5K45,375
5K - 10K54,732
10K - 15K89,469
15K - 20K69,146
20K - 25K66,872
25K - 30K51,862
30K - 35K37,700
35K - 40K33,360
40K - 45K24,760
45K - 50K19,280
50K - 55K15,807
55K - 60K11,716
60K - 65K8,041
65K - 70K6,195
70K - 75K4,356
>= 75K37,476