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
< 5K43,184
5K - 10K50,565
10K - 15K82,339
15K - 20K63,443
20K - 25K61,581
25K - 30K48,418
30K - 35K34,846
35K - 40K30,916
40K - 45K23,161
45K - 50K17,750
50K - 55K14,514
55K - 60K10,935
60K - 65K7,462
65K - 70K5,642
70K - 75K4,039
>= 75K33,570