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
< 100019,476
1000 - 200033,721
2000 - 300039,119
3000 - 400029,697
4000 - 500020,566
5000 - 600014,747
6000 - 700012,578
7000 - 800010,098
8000 - 90008,068
9000 - 100005,924
10000 - 110004,956
11000 - 120004,196
12000 - 130003,572
13000 - 140003,043
14000 - 150002,616
15000 - 160002,164
16000 - 170001,938
17000 - 180001,674
18000 - 190001,352
>= 1900019,389