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
< 100018,830
1000 - 200031,787
2000 - 300036,848
3000 - 400027,898
4000 - 500019,204
5000 - 600013,740
6000 - 700011,666
7000 - 80009,144
8000 - 90007,219
9000 - 100005,328
10000 - 110004,561
11000 - 120003,850
12000 - 130003,190
13000 - 140002,737
14000 - 150002,257
15000 - 160001,871
16000 - 170001,671
17000 - 180001,441
18000 - 190001,209
>= 1900016,600