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
< 100020,202
1000 - 200034,910
2000 - 300041,072
3000 - 400031,337
4000 - 500022,004
5000 - 600015,700
6000 - 700013,407
7000 - 800010,741
8000 - 90008,800
9000 - 100006,498
10000 - 110005,375
11000 - 120004,558
12000 - 130003,910
13000 - 140003,312
14000 - 150002,915
15000 - 160002,378
16000 - 170002,160
17000 - 180001,847
18000 - 190001,480
>= 1900021,967