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	15,489
100 - 200	29,007
200 - 300	30,236
300 - 400	32,475
400 - 500	20,932
500 - 600	17,211
600 - 700	13,978
700 - 800	10,609
800 - 900	10,138
900 - 1000	7,646
1000 - 1100	6,207
1100 - 1200	5,106
1200 - 1300	4,865
1300 - 1400	4,531
1400 - 1500	4,181
1500 - 1600	3,517
1600 - 1700	2,706
1700 - 1800	2,406
1800 - 1900	2,345
>= 1900	35,031

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