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
< 5K39,831
5K - 10K43,814
10K - 15K71,238
15K - 20K54,474
20K - 25K53,859
25K - 30K42,750
30K - 35K31,179
35K - 40K27,744
40K - 45K20,619
45K - 50K15,387
50K - 55K12,621
55K - 60K9,278
60K - 65K6,482
65K - 70K4,798
70K - 75K3,367
>= 75K26,940