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
< 100020,024
1000 - 200034,483
2000 - 300040,251
3000 - 400030,657
4000 - 500021,356
5000 - 600015,331
6000 - 700013,087
7000 - 800010,482
8000 - 90008,519
9000 - 100006,241
10000 - 110005,211
11000 - 120004,409
12000 - 130003,762
13000 - 140003,203
14000 - 150002,812
15000 - 160002,287
16000 - 170002,075
17000 - 180001,778
18000 - 190001,428
>= 1900020,889