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 RangeNumber of Entries
< 10013166
100 - 20023079
200 - 30023894
300 - 40024790
400 - 50015900
500 - 60012933
600 - 7009813
700 - 8007821
800 - 9007367
900 - 10005580
1000 - 11004283
1100 - 12003468
1200 - 13003082
1300 - 14002667
1400 - 15002537
1500 - 16002186
1600 - 17001507
1700 - 18001439
1800 - 19001284
>= 190016590