PDB Statistics: PDB Data Distribution by Residue Count

Distribution of released structures by the number of residues in macromolecules. All residues specified in macromolecular chains (i.e. full sequence) are counted even if not all of them are observed in the structure.

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Residue Count Range	Number of Entries
< 100	15,377
100 - 200	28,693
200 - 300	29,891
300 - 400	32,131
400 - 500	20,704
500 - 600	17,029
600 - 700	13,747
700 - 800	10,298
800 - 900	9,987
900 - 1000	7,521
1000 - 1100	6,071
1100 - 1200	5,010
1200 - 1300	4,739
1300 - 1400	4,453
1400 - 1500	4,055
1500 - 1600	3,462
1600 - 1700	2,644
1700 - 1800	2,351
1800 - 1900	2,268
>= 1900	33,755

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