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
< 5K45,805
5K - 10K55,677
10K - 15K90,795
15K - 20K70,162
20K - 25K67,825
25K - 30K52,710
30K - 35K38,162
35K - 40K33,833
40K - 45K25,111
45K - 50K19,693
50K - 55K16,081
55K - 60K11,959
60K - 65K8,176
65K - 70K6,287
70K - 75K4,460
>= 75K38,413