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
< 5K38,339
5K - 10K41,281
10K - 15K67,274
15K - 20K51,467
20K - 25K51,054
25K - 30K40,893
30K - 35K29,229
35K - 40K26,284
40K - 45K19,427
45K - 50K14,548
50K - 55K11,772
55K - 60K8,568
60K - 65K6,072
65K - 70K4,415
70K - 75K3,105
>= 75K24,676