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
< 100020,188
1000 - 200034,863
2000 - 300040,939
3000 - 400031,192
4000 - 500021,937
5000 - 600015,652
6000 - 700013,369
7000 - 800010,706
8000 - 90008,762
9000 - 100006,474
10000 - 110005,356
11000 - 120004,546
12000 - 130003,883
13000 - 140003,301
14000 - 150002,903
15000 - 160002,368
16000 - 170002,147
17000 - 180001,841
18000 - 190001,475
>= 1900021,833