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
< 100020,053
1000 - 200034,526
2000 - 300040,290
3000 - 400030,746
4000 - 500021,446
5000 - 600015,388
6000 - 700013,135
7000 - 800010,501
8000 - 90008,544
9000 - 100006,270
10000 - 110005,230
11000 - 120004,427
12000 - 130003,772
13000 - 140003,211
14000 - 150002,820
15000 - 160002,295
16000 - 170002,087
17000 - 180001,792
18000 - 190001,435
>= 1900021,006