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
< 100020,233
1000 - 200035,020
2000 - 300041,163
3000 - 400031,392
4000 - 500022,094
5000 - 600015,749
6000 - 700013,464
7000 - 800010,790
8000 - 90008,866
9000 - 100006,562
10000 - 110005,395
11000 - 120004,582
12000 - 130003,940
13000 - 140003,333
14000 - 150002,946
15000 - 160002,402
16000 - 170002,168
17000 - 180001,867
18000 - 190001,487
>= 1900022,132