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
< 5K43,143
5K - 10K50,373
10K - 15K82,088
15K - 20K63,303
20K - 25K61,464
25K - 30K48,326
30K - 35K34,758
35K - 40K30,867
40K - 45K23,133
45K - 50K17,692
50K - 55K14,493
55K - 60K10,921
60K - 65K7,447
65K - 70K5,632
70K - 75K4,027
>= 75K33,496