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
< 5K45,035
5K - 10K53,987
10K - 15K88,088
15K - 20K67,955
20K - 25K65,560
25K - 30K51,157
30K - 35K37,100
35K - 40K32,726
40K - 45K24,448
45K - 50K18,945
50K - 55K15,491
55K - 60K11,623
60K - 65K7,954
65K - 70K6,101
70K - 75K4,306
>= 75K36,798