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
< 5K41,776
5K - 10K47,579
10K - 15K77,717
15K - 20K59,596
20K - 25K58,329
25K - 30K46,240
30K - 35K33,260
35K - 40K29,600
40K - 45K22,035
45K - 50K16,568
50K - 55K13,717
55K - 60K10,103
60K - 65K7,042
65K - 70K5,226
70K - 75K3,735
>= 75K30,778