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
< 100020,083
1000 - 200034,631
2000 - 300040,568
3000 - 400030,892
4000 - 500021,592
5000 - 600015,469
6000 - 700013,185
7000 - 800010,547
8000 - 90008,603
9000 - 100006,314
10000 - 110005,269
11000 - 120004,451
12000 - 130003,803
13000 - 140003,244
14000 - 150002,838
15000 - 160002,307
16000 - 170002,098
17000 - 180001,803
18000 - 190001,450
>= 1900021,250