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
< 5K46,267
5K - 10K56,784
10K - 15K92,485
15K - 20K71,648
20K - 25K69,081
25K - 30K53,689
30K - 35K38,626
35K - 40K34,389
40K - 45K25,491
45K - 50K20,142
50K - 55K16,312
55K - 60K12,111
60K - 65K8,317
65K - 70K6,418
70K - 75K4,544
>= 75K39,520