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
< 100019,059
1000 - 200032,183
2000 - 300037,487
3000 - 400028,433
4000 - 500019,605
5000 - 600013,974
6000 - 700011,912
7000 - 80009,370
8000 - 90007,458
9000 - 100005,502
10000 - 110004,690
11000 - 120003,950
12000 - 130003,309
13000 - 140002,822
14000 - 150002,328
15000 - 160001,943
16000 - 170001,733
17000 - 180001,504
18000 - 190001,257
>= 1900017,427