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
< 5K44,371
5K - 10K52,806
10K - 15K85,982
15K - 20K66,180
20K - 25K63,845
25K - 30K50,257
30K - 35K36,345
35K - 40K32,038
40K - 45K23,902
45K - 50K18,450
50K - 55K15,158
55K - 60K11,402
60K - 65K7,783
65K - 70K5,955
70K - 75K4,201
>= 75K35,691