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
< 5K41,045
5K - 10K46,200
10K - 15K75,261
15K - 20K57,905
20K - 25K56,686
25K - 30K44,859
30K - 35K32,449
35K - 40K28,988
40K - 45K21,425
45K - 50K16,077
50K - 55K13,374
55K - 60K9,783
60K - 65K6,800
65K - 70K5,080
70K - 75K3,579
>= 75K29,350