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	15,416
100 - 200	28,782
200 - 300	30,008
300 - 400	32,207
400 - 500	20,770
500 - 600	17,104
600 - 700	13,838
700 - 800	10,351
800 - 900	10,050
900 - 1000	7,567
1000 - 1100	6,112
1100 - 1200	5,043
1200 - 1300	4,790
1300 - 1400	4,489
1400 - 1500	4,104
1500 - 1600	3,481
1600 - 1700	2,659
1700 - 1800	2,369
1800 - 1900	2,302
>= 1900	34,188

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