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
< 5K46,548
5K - 10K57,395
10K - 15K93,547
15K - 20K72,432
20K - 25K69,980
25K - 30K54,215
30K - 35K39,004
35K - 40K34,919
40K - 45K25,779
45K - 50K20,404
50K - 55K16,521
55K - 60K12,219
60K - 65K8,414
65K - 70K6,491
70K - 75K4,633
>= 75K40,165