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
< 5K45,008
5K - 10K53,920
10K - 15K88,043
15K - 20K67,892
20K - 25K65,521
25K - 30K51,118
30K - 35K37,036
35K - 40K32,675
40K - 45K24,399
45K - 50K18,925
50K - 55K15,477
55K - 60K11,609
60K - 65K7,946
65K - 70K6,080
70K - 75K4,286
>= 75K36,724