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
< 100020,192
1000 - 200034,882
2000 - 300041,021
3000 - 400031,297
4000 - 500021,953
5000 - 600015,681
6000 - 700013,382
7000 - 800010,720
8000 - 90008,783
9000 - 100006,488
10000 - 110005,366
11000 - 120004,552
12000 - 130003,889
13000 - 140003,303
14000 - 150002,908
15000 - 160002,375
16000 - 170002,154
17000 - 180001,841
18000 - 190001,475
>= 1900021,879