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
< 100020,250
1000 - 200035,070
2000 - 300041,215
3000 - 400031,422
4000 - 500022,131
5000 - 600015,778
6000 - 700013,482
7000 - 800010,799
8000 - 90008,879
9000 - 100006,570
10000 - 110005,399
11000 - 120004,588
12000 - 130003,946
13000 - 140003,337
14000 - 150002,950
15000 - 160002,408
16000 - 170002,169
17000 - 180001,868
18000 - 190001,489
>= 1900022,211