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
< 100019,121
1000 - 200032,595
2000 - 300037,795
3000 - 400028,694
4000 - 500019,811
5000 - 600014,176
6000 - 700012,045
7000 - 80009,499
8000 - 90007,588
9000 - 100005,582
10000 - 110004,743
11000 - 120003,995
12000 - 130003,377
13000 - 140002,868
14000 - 150002,381
15000 - 160001,971
16000 - 170001,769
17000 - 180001,533
18000 - 190001,268
>= 1900017,866