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
< 5K44,732
5K - 10K53,411
10K - 15K87,072
15K - 20K67,244
20K - 25K64,824
25K - 30K50,783
30K - 35K36,785
35K - 40K32,404
40K - 45K24,132
45K - 50K18,739
50K - 55K15,340
55K - 60K11,530
60K - 65K7,857
65K - 70K6,030
70K - 75K4,255
>= 75K36,371