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
< 100020,302
1000 - 200035,271
2000 - 300041,478
3000 - 400031,565
4000 - 500022,363
5000 - 600015,918
6000 - 700013,572
7000 - 800010,888
8000 - 90008,971
9000 - 100006,635
10000 - 110005,434
11000 - 120004,624
12000 - 130003,993
13000 - 140003,361
14000 - 150002,961
15000 - 160002,436
16000 - 170002,207
17000 - 180001,899
18000 - 190001,500
>= 1900022,600