Cathepsin F

Cathepsin F is a protein that in humans is encoded by the CTSF gene.[5][6][7]

CTSF
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesCTSF, CATSF, CLN13, cathepsin F
External IDsOMIM: 603539 MGI: 1861434 HomoloGene: 31194 GeneCards: CTSF
Gene location (Human)
Chr.Chromosome 11 (human)[1]
Band11q13.2Start66,563,464 bp[1]
End66,568,841 bp[1]
RNA expression pattern
More reference expression data
Orthologs
SpeciesHumanMouse
Entrez

8722

56464

Ensembl

ENSG00000174080

ENSMUSG00000083282

UniProt

Q9UBX1

Q9R013

RefSeq (mRNA)

NM_003793

NM_019861

RefSeq (protein)

NP_003784

NP_063914

Location (UCSC)Chr 11: 66.56 – 66.57 MbChr 19: 4.86 – 4.86 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Cathepsins are papain family cysteine proteinases that represent a major component of the lysosomal proteolytic system. In general, cathepsins contain a signal sequence, followed by a propeptide and then a catalytically active mature region. The very long (251-amino acid residues) proregion of the cathepsin F precursor contains a C-terminal domain similar to the pro-segment of cathepsin L-like enzymes, a 50-residue flexible linker peptide, and an N-terminal domain predicted to adopt a cystatin-like fold. The cathepsin F proregion is unique within the papain family cysteine proteases in that it contains this additional N-terminal segment predicted to share structural similarities with cysteine protease inhibitors of the cystatin superfamily. This cystatin-like domain contains some of the elements known to be important for inhibitory activity. CTSF encodes a predicted protein of 484 amino acids that contains a 19-residue signal peptide. Cathepsin F contains five potential N-glycosylation sites, and it may be targeted to the endosomal/lysosomal compartment via the mannose 6-phosphate receptor pathway. The cathepsin F gene is ubiquitously expressed, and it maps to chromosome 11q13, close to the gene encoding cathepsin W.[7]

References

  1. GRCh38: Ensembl release 89: ENSG00000174080 - Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000083282 - Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Wang B, Shi GP, Yao PM, Li Z, Chapman HA, Bromme D (Dec 1998). "Human cathepsin F. Molecular cloning, functional expression, tissue localization, and enzymatic characterization". J Biol Chem. 273 (48): 32000–8. doi:10.1074/jbc.273.48.32000. PMID 9822672.
  6. Santamaria I, Velasco G, Pendas AM, Paz A, Lopez-Otin C (Jun 1999). "Molecular cloning and structural and functional characterization of human cathepsin F, a new cysteine proteinase of the papain family with a long propeptide domain". J Biol Chem. 274 (20): 13800–9. doi:10.1074/jbc.274.20.13800. PMID 10318784.
  7. "Entrez Gene: CTSF cathepsin F".

Further reading

  • The MEROPS online database for peptidases and their inhibitors: C01.018


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