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
< 100018,767
1000 - 200031,517
2000 - 300036,687
3000 - 400027,679
4000 - 500019,064
5000 - 600013,559
6000 - 700011,597
7000 - 80009,058
8000 - 90007,143
9000 - 100005,251
10000 - 110004,506
11000 - 120003,815
12000 - 130003,170
13000 - 140002,702
14000 - 150002,229
15000 - 160001,844
16000 - 170001,649
17000 - 180001,420
18000 - 190001,193
>= 1900016,290