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
< 100020,315
1000 - 200035,325
2000 - 300041,533
3000 - 400031,602
4000 - 500022,381
5000 - 600016,003
6000 - 700013,604
7000 - 800010,901
8000 - 90009,004
9000 - 100006,657
10000 - 110005,471
11000 - 120004,642
12000 - 130004,010
13000 - 140003,372
14000 - 150002,966
15000 - 160002,445
16000 - 170002,217
17000 - 180001,901
18000 - 190001,505
>= 1900022,717