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
< 5K43,041
5K - 10K50,190
10K - 15K81,785
15K - 20K63,127
20K - 25K61,199
25K - 30K48,192
30K - 35K34,678
35K - 40K30,801
40K - 45K23,077
45K - 50K17,589
50K - 55K14,446
55K - 60K10,868
60K - 65K7,410
65K - 70K5,616
70K - 75K3,995
>= 75K33,379