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
< 100017,804
1000 - 200029,182
2000 - 300033,458
3000 - 400025,282
4000 - 500017,097
5000 - 600012,053
6000 - 700010,298
7000 - 80008,068
8000 - 90006,061
9000 - 100004,564
10000 - 110003,722
11000 - 120003,306
12000 - 130002,745
13000 - 140002,259
14000 - 150001,853
15000 - 160001,560
16000 - 170001,361
17000 - 180001,171
18000 - 19000981
>= 1900012,740