Biology:Cathepsin L2

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Short description: Protein-coding gene in the species Homo sapiens


A representation of the 3D structure of the protein myoglobin showing turquoise α-helices.
Generic protein structure example

Cathepsin L2 (EC 3.4.22.43, also known as cathepsin V or cathepsin U) is a protein encoded in humans by the CTSV gene.[1][2][3][4]

The protein is a human cysteine cathepsin, a lysosomal cysteine protease with endopeptidase activity.

The protein is a member of the papain-like protease family (MEROPS family C1), a lysosomal cysteine protease with endopeptidase activity. It may play an important role in corneal physiology. This gene is expressed in colorectal and breast carcinomas but not in normal colon, mammary gland, or peritumoral tissues, suggesting a possible role for this gene in tumor processes.

Clinical significance

Cathepsin L2 may play a role in the pathogenesis of keratoconus.[5]

References

  1. "Entrez Gene: CTSL2 cathepsin L2". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=1515. 
  2. "Human cathepsin V functional expression, tissue distribution, electrostatic surface potential, enzymatic characterization, and chromosomal localization". Biochemistry 38 (8): 2377–85. February 1999. doi:10.1021/bi982175f. PMID 10029531. 
  3. "Isolation and characterization of human cathepsin V: a major proteinase in corneal epithelium". Investigative Ophthalmology & Visual Science 39 (10): 1789–96. September 1998. PMID 9727401. 
  4. "Cathepsin L2, a novel human cysteine proteinase produced by breast and colorectal carcinomas". Cancer Research 58 (8): 1624–30. April 1998. PMID 9563472. 
  5. "Increased levels of catalase and cathepsin V/L2 but decreased TIMP-1 in keratoconus corneas: evidence that oxidative stress plays a role in this disorder". Invest. Ophthalmol. Vis. Sci. 46 (3): 823–832. 2005. doi:10.1167/iovs.04-0549. PMID 15728537. 

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Further reading