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
< 5K43,963
5K - 10K51,954
10K - 15K84,701
15K - 20K65,068
20K - 25K62,946
25K - 30K49,467
30K - 35K35,707
35K - 40K31,603
40K - 45K23,590
45K - 50K18,168
50K - 55K14,910
55K - 60K11,185
60K - 65K7,649
65K - 70K5,814
70K - 75K4,144
>= 75K34,822