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
< 100020,167
1000 - 200034,837
2000 - 300040,888
3000 - 400031,143
4000 - 500021,884
5000 - 600015,617
6000 - 700013,350
7000 - 800010,681
8000 - 90008,730
9000 - 100006,394
10000 - 110005,345
11000 - 120004,530
12000 - 130003,862
13000 - 140003,291
14000 - 150002,896
15000 - 160002,363
16000 - 170002,141
17000 - 180001,838
18000 - 190001,468
>= 1900021,735