Cathepsin D

Source: Wikipedia, the free encyclopedia.
CTSD
Gene ontology
Molecular function
Cellular component
Biological process
Sources:Amigo / QuickGO
Ensembl
UniProt
RefSeq (mRNA)

NM_001909

NM_009983

RefSeq (protein)

NP_001900

NP_034113

Location (UCSC)Chr 11: 1.75 – 1.76 MbChr 7: 141.93 – 141.94 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Cathepsin D is a

Alzheimer disease.[6] Homozygous deletion of the CTSD gene leads to early lethality in the postnatal phase.[9] Deficiency of CTSD gene has been reported an underlying cause of neuronal ceroid lipofuscinosis (NCL).[10]

Structure

Gene

The CTSD gene is located at chromosome 11.

Protein

The catalytic sites of cathepsin D include two critical aspartic residues (amino acid 33 and 231) located on the 14 kDa and 34kDa chains.[11] The ultimate form of mature cathepsin D is composed of 337 amino acid residues, 196 amino acid residues in the heavy chain and 141 in the light chain. These two chains are linked by the hydrophobic effect.[12]

Function

The optimum pH for cathepsin D in vitro is 4.5-5.0.

VEGF-D, which might partly explain its relevance for tumor progression.[22]

Clinical significance

The NCLs present with progressive loss of visual function and neurodevelopmental decline,

hemorrhage and increase apoptosis in thymus, indicating that cathepsin D is required in certain epithelial cells for tissue remodeling and renewal.[9] It is also reported that there might be a strong effect for CTSD genotype on Alzheimer disease risk in male.[25] Cathepsin D enzymatic activity induces hydrolytic modification of apolipoprotein B-100-containing lipoproteins, including LDL, which means it may be involved in atherosclerosis as well.[18][26]

Interaction

References

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000117984Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000007891Ensembl, 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. PMID 3927292
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  6. ^ a b "Entrez Gene: CTSD cathepsin D".
  7. PMID 5419752
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Further reading

External links