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CTNND1 gene
URL of this page: https://medlineplus.gov/genetics/gene/ctnnd1/

CTNND1 gene

catenin delta 1

Normal Function

The CTNND1 gene provides instructions for making a protein called p120-catenin, also known as delta 1 catenin. This protein and others in the catenin family interact with proteins from another family called cadherins. Catenins and cadherins form protein complexes that help cells stick to neighboring cells (cell adhesion) to form organized tissues. In addition to their role in cell adhesion, catenin and cadherin interactions help transmit chemical signals within cells, control cell maturation and movement, and regulate the activity of certain genes.

The p120-catenin protein interacts with a protein called E-cadherin, which is produced from the CDH1 gene. The E-cadherin protein is found within the membrane that surrounds epithelial cells, which are the cells that line the surfaces and cavities of the body, including the inside of the eyelids and the mouth. The p120-catenin protein helps keep E-cadherin in its proper place in the cell membrane, preventing it from being taken into the cell through a process called endocytosis and broken down prematurely. Interactions between the two proteins are also important for other cell processes that are involved in the development of the head and face (craniofacial development), including the eyelids and teeth.

Health Conditions Related to Genetic Changes

Blepharocheilodontic syndrome

At least three CTNND1 gene mutations have been identified in people with blepharocheilodontic (BCD) syndrome, a disorder that is present at birth and causes abnormalities mainly affecting the eyelids and mouth. These mutations are thought to prevent the production of the p120-catenin protein or result in an unstable protein that quickly breaks down. A shortage of p120-catenin protein allows E-cadherin to be taken into the cell and destroyed too quickly by endocytosis. A shortage of these proteins disrupts normal development, especially craniofacial development, which is thought to underlie the features of BCD syndrome.

More About This Health Condition

Other Names for This Gene

  • cadherin-associated Src substrate
  • CAS
  • catenin (cadherin-associated protein), delta 1
  • CTNND
  • delta catenin
  • KIAA0384
  • p120
  • p120 catenin
  • p120(CAS)
  • p120(CTN)
  • P120CAS
  • P120CTN

Additional Information & Resources

Tests Listed in the Genetic Testing Registry

  • Tests of CTNND1 From the National Institutes of Health

Scientific Articles on PubMed

  • PubMed From the National Institutes of Health

Catalog of Genes and Diseases from OMIM

  • CATENIN, DELTA-1; CTNND1

Gene and Variant Databases

  • NCBI Gene From the National Institutes of Health
  • ClinVar From the National Institutes of Health

References

  • Ghoumid J, Stichelbout M, Jourdain AS, Frenois F, Lejeune-Dumoulin S, Alex-Cordier MP, Lebrun M, Guerreschi P, Duquennoy-Martinot V, Vinchon M, Ferri J, Jung M, Vicaire S, Vanlerberghe C, Escande F, Petit F, Manouvrier-Hanu S. Blepharocheilodontic syndrome is a CDH1 pathway-related disorder due to mutations in CDH1 and CTNND1. Genet Med. 2017 Sep;19(9):1013-1021. doi: 10.1038/gim.2017.11. Epub 2017 Mar 16. Citation on PubMed
  • Gooding JM, Yap KL, Ikura M. The cadherin-catenin complex as a focal point of cell adhesion and signalling: new insights from three-dimensional structures. Bioessays. 2004 May;26(5):497-511. doi: 10.1002/bies.20033. Citation on PubMed
  • Ishiyama N, Lee SH, Liu S, Li GY, Smith MJ, Reichardt LF, Ikura M. Dynamic and static interactions between p120 catenin and E-cadherin regulate the stability of cell-cell adhesion. Cell. 2010 Apr 2;141(1):117-28. doi: 10.1016/j.cell.2010.01.017. Citation on PubMed
  • Kourtidis A, Ngok SP, Anastasiadis PZ. p120 catenin: an essential regulator of cadherin stability, adhesion-induced signaling, and cancer progression. Prog Mol Biol Transl Sci. 2013;116:409-32. doi: 10.1016/B978-0-12-394311-8.00018-2. Citation on PubMed or Free article on PubMed Central
  • Schackmann RC, Tenhagen M, van de Ven RA, Derksen PW. p120-catenin in cancer - mechanisms, models and opportunities for intervention. J Cell Sci. 2013 Aug 15;126(Pt 16):3515-25. doi: 10.1242/jcs.134411. Citation on PubMed
DNA helix

Genomic Location

The CTNND1 gene is found on chromosome 11.

Related Health Topics

  • Genes and Gene Therapy
  • Genetic Disorders

MEDICAL ENCYCLOPEDIA

  • Genes
  • Genetics

Understanding Genetics

  • What is DNA?
  • What is a gene?
  • What is a gene variant and how do variants occur?

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