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
< 5K45,920
5K - 10K55,999
10K - 15K91,290
15K - 20K70,539
20K - 25K68,175
25K - 30K52,979
30K - 35K38,252
35K - 40K33,946
40K - 45K25,188
45K - 50K19,874
50K - 55K16,148
55K - 60K11,988
60K - 65K8,209
65K - 70K6,318
70K - 75K4,484
>= 75K38,688