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
< 100019,185
1000 - 200032,758
2000 - 300038,082
3000 - 400028,917
4000 - 500019,961
5000 - 600014,291
6000 - 700012,215
7000 - 80009,765
8000 - 90007,714
9000 - 100005,663
10000 - 110004,791
11000 - 120004,059
12000 - 130003,426
13000 - 140002,905
14000 - 150002,432
15000 - 160002,012
16000 - 170001,792
17000 - 180001,581
18000 - 190001,288
>= 1900018,192