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
< 5K42,965
5K - 10K50,039
10K - 15K81,496
15K - 20K62,921
20K - 25K61,040
25K - 30K48,093
30K - 35K34,612
35K - 40K30,712
40K - 45K23,032
45K - 50K17,543
50K - 55K14,412
55K - 60K10,842
60K - 65K7,386
65K - 70K5,592
70K - 75K3,990
>= 75K33,233