1yk8

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Cathepsin K complexed with a cyanamide-based inhibitor

Structural highlights

1yk8 is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.6Å
Ligands:T2M
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

CATK_HUMAN Defects in CTSK are the cause of pycnodysostosis (PKND) [MIM:265800. PKND is an autosomal recessive osteochondrodysplasia characterized by osteosclerosis and short stature.[1] [2] [3] [4]

Function

CATK_HUMAN Closely involved in osteoclastic bone resorption and may participate partially in the disorder of bone remodeling. Displays potent endoprotease activity against fibrinogen at acid pH. May play an important role in extracellular matrix degradation.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Conversion of the proline-derived cyanamide lead to an acyclic cyanamide capable of forming an additional hydrogen bond with cathepsin K resulted in a large increase in inhibitory activity. An X-ray structure of a co-crystal of a cyanamide with cathepsin K confirmed the enzyme interaction. Furthermore, a representative acyclic cyanamide inhibitor 6r was able to attenuate bone resorption in the rat calvarial model.

Acyclic cyanamide-based inhibitors of cathepsin K.,Barrett DG, Deaton DN, Hassell AM, McFadyen RB, Miller AB, Miller LR, Payne JA, Shewchuk LM, Willard DH Jr, Wright LL Bioorg Med Chem Lett. 2005 Jun 15;15(12):3039-43. PMID:15896958[5]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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Citations
2 reviews cite this structure
Biochemical properties and regulation of cathepsin K activity.
Lecaille et al. (2008)
1 more
10 other articles
No citations found

See Also

References

  1. ↑ Gelb BD, Shi GP, Chapman HA, Desnick RJ. Pycnodysostosis, a lysosomal disease caused by cathepsin K deficiency. Science. 1996 Aug 30;273(5279):1236-8. PMID:8703060
  2. ↑ Gelb BD, Willner JP, Dunn TM, Kardon NB, Verloes A, Poncin J, Desnick RJ. Paternal uniparental disomy for chromosome 1 revealed by molecular analysis of a patient with pycnodysostosis. Am J Hum Genet. 1998 Apr;62(4):848-54. PMID:9529353 doi:S0002-9297(07)60977-X
  3. ↑ Ho N, Punturieri A, Wilkin D, Szabo J, Johnson M, Whaley J, Davis J, Clark A, Weiss S, Francomano C. Mutations of CTSK result in pycnodysostosis via a reduction in cathepsin K protein. J Bone Miner Res. 1999 Oct;14(10):1649-53. PMID:10491211
  4. ↑ Haagerup A, Hertz JM, Christensen MF, Binderup H, Kruse TA. Cathepsin K gene mutations and 1q21 haplotypes in at patients with pycnodysostosis in an outbred population. Eur J Hum Genet. 2000 Jun;8(6):431-6. PMID:10878663 doi:10.1038/sj.ejhg.5200481
  5. ↑ Barrett DG, Deaton DN, Hassell AM, McFadyen RB, Miller AB, Miller LR, Payne JA, Shewchuk LM, Willard DH Jr, Wright LL. Acyclic cyanamide-based inhibitors of cathepsin K. Bioorg Med Chem Lett. 2005 Jun 15;15(12):3039-43. PMID:15896958 doi:10.1016/j.bmcl.2005.04.032

Contents


PDB ID 1yk8

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