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
< 5K35,450
5K - 10K36,599
10K - 15K59,137
15K - 20K45,339
20K - 25K45,131
25K - 30K36,634
30K - 35K26,546
35K - 40K23,233
40K - 45K17,506
45K - 50K12,944
50K - 55K10,295
55K - 60K7,577
60K - 65K5,417
65K - 70K3,796
70K - 75K2,676
>= 75K20,513