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
< 100019,051
1000 - 200032,164
2000 - 300037,433
3000 - 400028,409
4000 - 500019,591
5000 - 600013,957
6000 - 700011,895
7000 - 80009,361
8000 - 90007,443
9000 - 100005,494
10000 - 110004,687
11000 - 120003,947
12000 - 130003,301
13000 - 140002,816
14000 - 150002,324
15000 - 160001,929
16000 - 170001,730
17000 - 180001,501
18000 - 190001,255
>= 1900017,393