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
< 5K44,122
5K - 10K52,226
10K - 15K85,252
15K - 20K65,446
20K - 25K63,304
25K - 30K49,711
30K - 35K35,913
35K - 40K31,763
40K - 45K23,709
45K - 50K18,251
50K - 55K15,020
55K - 60K11,243
60K - 65K7,688
65K - 70K5,841
70K - 75K4,160
>= 75K35,134