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
< 100020,078
1000 - 200034,601
2000 - 300040,529
3000 - 400030,854
4000 - 500021,557
5000 - 600015,450
6000 - 700013,161
7000 - 800010,534
8000 - 90008,578
9000 - 100006,293
10000 - 110005,258
11000 - 120004,448
12000 - 130003,798
13000 - 140003,236
14000 - 150002,834
15000 - 160002,303
16000 - 170002,091
17000 - 180001,799
18000 - 190001,449
>= 1900021,184