PDB Statistics: PDB Data Distribution by Atom Count

Distribution of released structures by the number of observed atoms excluding atoms in water molecules.

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Atom Count RangeNumber of Entries
< 100020,036
1000 - 200034,508
2000 - 300040,271
3000 - 400030,720
4000 - 500021,411
5000 - 600015,370
6000 - 700013,110
7000 - 800010,490
8000 - 90008,535
9000 - 100006,255
10000 - 110005,216
11000 - 120004,417
12000 - 130003,768
13000 - 140003,204
14000 - 150002,815
15000 - 160002,294
16000 - 170002,082
17000 - 180001,784
18000 - 190001,435
>= 1900020,952