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
< 100020,287
1000 - 200035,241
2000 - 300041,425
3000 - 400031,540
4000 - 500022,241
5000 - 600015,864
6000 - 700013,559
7000 - 800010,879
8000 - 90008,954
9000 - 100006,627
10000 - 110005,425
11000 - 120004,619
12000 - 130003,985
13000 - 140003,358
14000 - 150002,962
15000 - 160002,431
16000 - 170002,189
17000 - 180001,896
18000 - 190001,498
>= 1900022,546