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
< 100020,281
1000 - 200035,204
2000 - 300041,346
3000 - 400031,524
4000 - 500022,201
5000 - 600015,844
6000 - 700013,541
7000 - 800010,853
8000 - 90008,941
9000 - 100006,619
10000 - 110005,415
11000 - 120004,610
12000 - 130003,976
13000 - 140003,352
14000 - 150002,960
15000 - 160002,428
16000 - 170002,185
17000 - 180001,875
18000 - 190001,496
>= 1900022,485