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
< 100020,309
1000 - 200035,298
2000 - 300041,503
3000 - 400031,588
4000 - 500022,372
5000 - 600015,982
6000 - 700013,586
7000 - 800010,898
8000 - 90008,993
9000 - 100006,653
10000 - 110005,463
11000 - 120004,634
12000 - 130004,005
13000 - 140003,368
14000 - 150002,966
15000 - 160002,440
16000 - 170002,214
17000 - 180001,899
18000 - 190001,505
>= 1900022,682