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	15,448
100 - 200	28,870
200 - 300	30,068
300 - 400	32,268
400 - 500	20,816
500 - 600	17,148
600 - 700	13,889
700 - 800	10,381
800 - 900	10,068
900 - 1000	7,596
1000 - 1100	6,139
1100 - 1200	5,064
1200 - 1300	4,804
1300 - 1400	4,506
1400 - 1500	4,119
1500 - 1600	3,491
1600 - 1700	2,674
1700 - 1800	2,392
1800 - 1900	2,322
>= 1900	34,487

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