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
< 5K37,142
5K - 10K39,042
10K - 15K63,097
15K - 20K48,172
20K - 25K47,909
25K - 30K38,891
30K - 35K27,833
35K - 40K25,103
40K - 45K18,440
45K - 50K13,641
50K - 55K10,982
55K - 60K8,026
60K - 65K5,715
65K - 70K4,159
70K - 75K2,867
>= 75K22,547