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
< 100020,105
1000 - 200034,680
2000 - 300040,657
3000 - 400030,985
4000 - 500021,715
5000 - 600015,504
6000 - 700013,225
7000 - 800010,592
8000 - 90008,643
9000 - 100006,335
10000 - 110005,289
11000 - 120004,470
12000 - 130003,813
13000 - 140003,256
14000 - 150002,870
15000 - 160002,330
16000 - 170002,111
17000 - 180001,807
18000 - 190001,452
>= 1900021,334