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
< 100017,834
1000 - 200029,210
2000 - 300033,483
3000 - 400025,322
4000 - 500017,121
5000 - 600012,068
6000 - 700010,314
7000 - 80008,079
8000 - 90006,087
9000 - 100004,577
10000 - 110003,729
11000 - 120003,314
12000 - 130002,751
13000 - 140002,268
14000 - 150001,853
15000 - 160001,568
16000 - 170001,366
17000 - 180001,171
18000 - 19000984
>= 1900012,759