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
< 100018,572
1000 - 200031,017
2000 - 300035,753
3000 - 400027,072
4000 - 500018,599
5000 - 600013,140
6000 - 700011,202
7000 - 80008,783
8000 - 90006,830
9000 - 100005,055
10000 - 110004,345
11000 - 120003,676
12000 - 130003,049
13000 - 140002,562
14000 - 150002,113
15000 - 160001,775
16000 - 170001,567
17000 - 180001,348
18000 - 190001,137
>= 1900015,329