Human/Mouse/Rat Contactin-2/TAG1 Antibody
R&D Systems, part of Bio-Techne | Catalog # AF4439
Key Product Details
Species Reactivity
Validated:
Cited:
Applications
Validated:
Cited:
Label
Antibody Source
Product Specifications
Immunogen
Gln31-Ser1014
Accession # Q61330
Specificity
Clonality
Host
Isotype
Scientific Data Images for Human/Mouse/Rat Contactin-2/TAG1 Antibody
Detection of Human, Mouse, and Rat Contactin‑2/TAG1 by Western Blot.
Western blot shows lysates of human cerebellum tissue, mouse brain tissue, and rat brain tissue. PVDF membrane was probed with 1 µg/mL of Goat Anti-Human/Mouse/Rat Contactin-2/TAG1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4439) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for Contactin-2/TAG1 at approximately 135 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.Contactin‑2/TAG1 in Mouse Embryo.
Contactin-2/TAG1 was detected in immersion fixed frozen sections of mouse embryo (E13) using Goat Anti-Human/Mouse/Rat Contactin-2/TAG1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4439) at 15 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). Specific staining was localized to muscle cells in proximity to ribs. View our protocol for Chromogenic IHC Staining of Frozen Tissue Sections.Detection of Mouse Contactin-2/TAG1 by Simple WesternTM.
Simple Western lane view shows lysates of mouse spinal cord tissue, loaded at 0.2 mg/mL. A specific band was detected for Contactin-2/TAG1 at approximately 162 kDa (as indicated) using 10 µg/mL of Goat Anti-Human/Mouse/Rat Contactin-2/TAG1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4439) followed by 1:50 dilution of HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.Applications for Human/Mouse/Rat Contactin-2/TAG1 Antibody
Immunohistochemistry
Sample:
Immersion fixed frozen sections of mouse embryo (E13)
Simple Western
Sample: Mouse spinal cord tissue
Western Blot
Sample: Human cerebellum tissue, Mouse brain tissue, and Rat brain tissue
Reviewed Applications
Read 2 reviews rated 4.5 using AF4439 in the following applications:
Formulation, Preparation, and Storage
Purification
Reconstitution
Formulation
Shipping
Stability & Storage
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: Contactin-2/TAG1
Contactin-2 (CNTN2), also called TAG1 (transient axonal glycoprotein), TAX1 (transiently-expressed axonal glycoprotein), or axonin-1, is a 135 kDa glycosyl-phosphatidylinositol (GPI)- anchored cell adhesion molecule that belongs to the contactin subfamily within the immunoglobulin (Ig) protein superfamily (1-3). Mouse Contactin-2 cDNA encodes a 30 amino acid (aa) signal peptide, a 984 aa mature secreted protein with 6 Ig-like domains followed by 4 fibronectin type III-like repeats, and a 26 aa C-terminal GPI anchor pro-sequence. GPI-specific phospholipase activity can release soluble, active Contactin-2 from the membrane (2). Mature mouse Contactin-2 shares approximately 93%, 97%, and 77% aa sequence identity with human, rat, and chicken Contactin-2, respectively. During development, Contactin-2 is expressed by a subset of neuronal populations in the central nervous system (CNS) and peripheral nervous system (PNS), particularly during initial phases of axon outgrowth (3-5). Both the 135 kDa form and a 90 kDa form are also upregulated in response to CNS injury in the adult (6). Data support a role for Contactin-2 in axon pathfinding, neurite outgrowth and adhesion, especially in the CNS (3-6). In mature myelinated fibers, Contactin-2 is expressed by oligodendrocytes and Schwann cells, which are myelinating glial cells of the CNS and PNS, respectively (7, 8). It is enriched in the juxtaparanodal regions, where it recruits contactin-associated protein 2 (caspr2), a transmembrane neurexin involved in cell adhesion and intercellular communication (7-10). The axonal Contactin-2 interacts in cis with caspr2 and in trans with another Contactin-2 on the glial membrane (8). This ternary complex is required for the accumulation and organization of K+ channels in the juxtaparanodes (9).
References
- Wolfer, D. and R.J. Giger (1994) Swissprot Accession # Q61330.
- Hasler, T.H. et al. (1993) Eur. J. Biochem. 211:329.
- Karagogeos, D. (2003) Front. Biosci. 8:s1304.
- Liu, Y. and M.C. Halloran (2005) J. Neurosci. 25:10556.
- Denaxa, M. et al. (2005) Dev. Biol. 288:87.
- Soares, S. et al. (2005) Eur. J. Neurosci. 21:1169.
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Traka, M. et al. (2002) J. Neurosci. 22:3016.
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Poliak, S. and E. Peles (2003) Nat. Rev. Neurosci. 4:968.
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Traka, M. et al. (2003) J. Cell Biol. 162:1161.
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Poliak, S. et al. (2003) J. Cell Biol. 162:1149.
Alternate Names
Gene Symbol
UniProt
Additional Contactin-2/TAG1 Products
Product Documents for Human/Mouse/Rat Contactin-2/TAG1 Antibody
Product Specific Notices for Human/Mouse/Rat Contactin-2/TAG1 Antibody
For research use only