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Contactin 1/CNTN1  Protein, Antibody, ELISA Kit, cDNA Clone

Description: Active  
Expression host: Human Cells  
  • Slide 1
100 µg 
200 µg 
Add to Cart
Expression host: Human Cells  
  • Slide 1
100 µg 
200 µg 
Add to Cart

Contactin 1/CNTN1 Related Pathways

Contactin 1/CNTN1 Summary & Protein Information

Contactin 1/CNTN1 Background

Gene Summary: The protein encoded by this CNTN1 gene is a member of the immunoglobulin superfamily. Contactin 1 is a glycosylphosphatidylinositol (GPI)-anchored neuronal membrane protein that functions as a cell adhesion molecule. Contactin 1 may play a role in the formation of axon connections in the developing nervous system. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this CNTN1 gene.
General information above from NCBI
Subunit structure: Monomer. Interacts with CNTNAP1 in cis form. Binds to the carbonic-anhydrase like domain of protein-tyrosine phosphatase zeta. Interacts with NOTCH1 and TNR (By similarity).
Subcellular location: Isoform 1: Cell membrane; Lipid-anchor, GPI- anchor; Extracellular side.
Isoform 2: Cell membrane; Lipid-anchor, GPI- anchor; Extracellular side.
Tissue specificity: Strongly expressed in brain and in neuroblastoma and retinoblastoma cell lines. Lower levels of expression in lung, pancreas, kidney and skeletal muscle.
Involvement in disease: Compton-North congenital myopathy (CNCM) [MIM:612540]: Familial lethal form of congenital onset muscle weakness, inherited in an autosomal-recessive fashion and characterized by a secondary loss of beta2-syntrophin and alpha-dystrobrevin from the muscle sarcolemma, central nervous system involvement, and fetal akinesia. Note=The disease is caused by mutations affecting the gene represented in this entry.
Sequence similarity: Belongs to the immunoglobulin superfamily. Contactin family.
Contains 4 fibronectin type-III domains.
Contains 6 Ig-like C2-type (immunoglobulin-like) domains.C
General information above from UniProt

Contactins are a subgroup of molecules belonging to the immunoglobulin superfamily that are expressed exclusively in the nervous system. The subgroup consists of six members: Contactin-1, Contactin-2 (TAG-1), Contactin-3 (BIG-1), BIG-2, Contactin-5 (NB-2) and NB-3. Since their identification in the late 1980s, Contactin-1 and Contactin-2 have been studied extensively. Axonal expression and the neurite extension activity of Contactin-1 and Contactin-2 attracted researchers to study the function of these molecules in axon guidance during development. Contactin-1 and Contactin-2 have come to be known as the principal molecules in the function and maintenance of myelinated neurons. In contrast, the function of the other four members of this subgroup remained unknown until recently. Contactin-1 is a cell surface adhesion molecule that is normally expressed by neurons and oligodendrocytes. Particularly high levels of Contactin-1 are present during brain development. Contactin-1 and Contactin-2 are differentially expressed in a number of neuronal tissues during development, and they interact with several ligands including Nr-CAM, L1, NCAM, neurocan, phosphacan, and tenascin. As a cell adhesion molecule, Contactin-1 plays a role in the formation of axon connections in the developing nervous system. It was demonstrated that Contactin-1 participates in signal pathways via its association with Contactin-associated protein (CNTNAP1), receptor protein tyrosine phosphatase beta (RPTPb) and NOTCH1. Contactin-1 is also involved in paranodal axo-glial junction formation and oligodendrocytes generation. Furthermore, studies indicated that Contactin-1 functions importantly in the invasion and metastasis of lung adenocarcinoma cells. Contactin-1 may also significantly influence the functional expression and distribution of Na+ channels in neurons.

Contactin 1/CNTN1 Alternative Name

F3,GP135,MYPCN, [homo-sapiens]
CNTN1,Contactin 1,F3,GP135, [human]
AW495098,CNTN,Cntn1,Contactin 1,F3cam, [mouse]
CNTN,F3cam,AW495098, [mus-musculus]

Contactin 1/CNTN1 Related Studies

  • Kazarinova NK, et al. (2001) Contactin associates with Na+ channels and increases their functional expression. J Neurosci. 21 (19):7517-25.
  • Eckerich C, et al. (2006) Contactin is expressed in human astrocytic gliomas and mediates repulsive effects. Glia. 53(1):1-12.
  • Su JL, et al. (2006) Knockdown of contactin-1 expression suppresses invasion and metastasis of lung adenocarcinoma. Cancer research 66 (5):2553-61.
  • Compton AG, et al. (2008) Mutations in contactin-1, a neural adhesion and neuromuscular junction protein, cause a familial form of lethal congenital myopathy. Am J Hum Genet. 83 (6):714-24.
  • Mikami T, et al. (2009) Contactin-1 is a functional receptor for neuroregulatory chondroitin sulfate-E. J Biol Chem. 284(7):4494-9.