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
< 5K39,754
5K - 10K43,583
10K - 15K70,958
15K - 20K54,222
20K - 25K53,718
25K - 30K42,647
30K - 35K31,046
35K - 40K27,628
40K - 45K20,530
45K - 50K15,330
50K - 55K12,565
55K - 60K9,240
60K - 65K6,452
65K - 70K4,761
70K - 75K3,345
>= 75K26,747