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
< 5K37,075
5K - 10K38,941
10K - 15K62,934
15K - 20K48,025
20K - 25K47,823
25K - 30K38,813
30K - 35K27,793
35K - 40K25,050
40K - 45K18,393
45K - 50K13,621
50K - 55K10,957
55K - 60K7,992
60K - 65K5,694
65K - 70K4,151
70K - 75K2,857
>= 75K22,461