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
< 100020,144
1000 - 200034,827
2000 - 300040,854
3000 - 400031,115
4000 - 500021,859
5000 - 600015,600
6000 - 700013,337
7000 - 800010,662
8000 - 90008,700
9000 - 100006,386
10000 - 110005,332
11000 - 120004,521
12000 - 130003,856
13000 - 140003,288
14000 - 150002,892
15000 - 160002,350
16000 - 170002,137
17000 - 180001,834
18000 - 190001,466
>= 1900021,638