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
< 100018,292
1000 - 200030,130
2000 - 300034,576
3000 - 400026,199
4000 - 500018,029
5000 - 600012,586
6000 - 700010,824
7000 - 80008,444
8000 - 90006,487
9000 - 100004,842
10000 - 110004,150
11000 - 120003,534
12000 - 130002,927
13000 - 140002,413
14000 - 150001,988
15000 - 160001,698
16000 - 170001,475
17000 - 180001,271
18000 - 190001,069
>= 1900014,199