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
< 100019,591
1000 - 200034,058
2000 - 300039,562
3000 - 400030,148
4000 - 500020,976
5000 - 600015,017
6000 - 700012,753
7000 - 800010,266
8000 - 90008,255
9000 - 100006,063
10000 - 110005,058
11000 - 120004,288
12000 - 130003,654
13000 - 140003,109
14000 - 150002,719
15000 - 160002,213
16000 - 170001,996
17000 - 180001,721
18000 - 190001,386
>= 1900019,997