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
< 100020,182
1000 - 200034,855
2000 - 300040,917
3000 - 400031,161
4000 - 500021,917
5000 - 600015,638
6000 - 700013,358
7000 - 800010,695
8000 - 90008,740
9000 - 100006,404
10000 - 110005,347
11000 - 120004,542
12000 - 130003,879
13000 - 140003,297
14000 - 150002,900
15000 - 160002,366
16000 - 170002,141
17000 - 180001,840
18000 - 190001,473
>= 1900021,785