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	15,477
100 - 200	28,978
200 - 300	30,197
300 - 400	32,421
400 - 500	20,870
500 - 600	17,205
600 - 700	13,953
700 - 800	10,579
800 - 900	10,122
900 - 1000	7,629
1000 - 1100	6,196
1100 - 1200	5,098
1200 - 1300	4,844
1300 - 1400	4,525
1400 - 1500	4,147
1500 - 1600	3,509
1600 - 1700	2,697
1700 - 1800	2,401
1800 - 1900	2,337
>= 1900	34,838

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