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
< 5K39,501
5K - 10K43,038
10K - 15K70,214
15K - 20K53,758
20K - 25K53,239
25K - 30K42,330
30K - 35K30,779
35K - 40K27,288
40K - 45K20,232
45K - 50K15,169
50K - 55K12,359
55K - 60K9,162
60K - 65K6,360
65K - 70K4,665
70K - 75K3,273
>= 75K26,243