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
< 5K43,524
5K - 10K51,318
10K - 15K83,629
15K - 20K64,259
20K - 25K62,203
25K - 30K48,849
30K - 35K35,267
35K - 40K31,233
40K - 45K23,334
45K - 50K17,967
50K - 55K14,704
55K - 60K11,047
60K - 65K7,546
65K - 70K5,739
70K - 75K4,070
>= 75K34,113