Product Name
Contactin-associated Protein 2 (CNTNAP2), Polyclonal Antibody
Full Product Name
Contactin-associated Protein 2 (Caspr2)
Product Synonym Names
Anti -Contactin-associated Protein 2 (Caspr2)
Product Gene Name
anti-CNTNAP2 antibody
[Similar Products]
Research Use Only
For Research Use Only. Not for use in diagnostic procedures.
Chromosome Location
Chromosome: 7; NC_000007.13 (145813453..148118090). Location: 7q35
3D Structure
ModBase 3D Structure for O75852
Species Reactivity
Human, Mouse, Rat
Specificity
Recognizes endogenous levels of total human Caspr2 protein at 150kD. Species Crossreactivity: mouse and rat.
Purity/Purification
Affinity Purified
Purified by Protein A and immunoaffinity chromatography.
Form/Format
Supplied as a liquid in 10mM sodium HEPES, pH 7.5, 150mM sodium chloride, 0.1mg/ml BSA, 50% glycerol.
Immunogen
Synthetic peptide sourrounding Glu1320 of human Caspr2.
Preparation and Storage
May be stored at 4 degree C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degree C. Aliquots are stable for12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Other Notes
Small volumes of anti-CNTNAP2 antibody vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.
Related Product Information for
anti-CNTNAP2 antibody
Contactin-associated protein 2 (Caspr2) is a type I transmembrane protein and member of the neurexin Superfamily that mediates nervous system cell-cell interactions through the Neurexin IV-Caspr-Paranodin (NCP) complex (1). A multiprotein complex consisting of TAG-1, Caspr2, K+ channel, PSD95 and protein 4.1B mediates the molecular interactions at the juxtaparanodal region of myelinated axons, with homophilic TAG-1 interactions mediating the binding of this complex to glia (2,3). Caspr2 protein localizes to juxtaparanodal regions of myelinated axons where it forms a cis-complex with the immunoglobulin-like cell adhesion molecule TAG-1. Caspr2 also binds to Shaker K+ channels Kv1.1, Kv1.2, and their Kv 2 subunit. A PDZ domain at the Caspr2 carboxy terminus mediates the Caspr2-K+ channel association. Caspr2 is required for proper K+ channel localization, as Caspr2 deletion causes the redistribution of channels along the internodes (1-3). Furthermore, Caspr2 binds to protein 4.1B and connects the protein complex to the axonal cytoskeleton (4). Mutations in the Caspr2 gene have been linked to focal epilepsy, cortical dysplasia and Gilles de la Tourette syndrome (5,6).
Product Categories/Family for anti-CNTNAP2 antibody
Antibodies; Abs to Neuroscience
Applications Tested/Suitable for anti-CNTNAP2 antibody
Western Blot (WB)
Application Notes for anti-CNTNAP2 antibody
Dilution: Western Blot: 1:1000 using anti-rabbit secondary antibodies.
NCBI/Uniprot data below describe general gene information for CNTNAP2. It may not necessarily be applicable to this product.
NCBI Accession #
NP_054860.1
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NCBI GenBank Nucleotide #
NM_014141.5
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UniProt Primary Accession #
O75852
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UniProt Related Accession #
O75852; Q75LG9; Q75M92; Q75MA1; Q75MD4; Q75MF8; Q75MQ9; Q86UI8; Q86UJ1; Q86UL4[Other Products]
Molecular Weight
23,057 Da[Similar Products]
NCBI Official Full Name
contactin-associated protein-like 2
NCBI Official Synonym Full Names
contactin associated protein-like 2
NCBI Official Symbol
CNTNAP2??[Similar Products]
NCBI Official Synonym Symbols
CDFE; NRXN4; AUTS15; CASPR2; PTHSL1; DKFZp781D1846
??[Similar Products]
NCBI Protein Information
contactin-associated protein-like 2; OTTHUMP00000202306; contactin-associated protein 2; cell recognition molecule Caspr2; homolog of Drosophila neurexin IV
UniProt Protein Name
Putative uncharacterized protein CNTNAP2
Protein Family
Contactin-associated protein
UniProt Gene Name
CNTNAP2??[Similar Products]
UniProt Entry Name
O75852_HUMAN
NCBI Summary for CNTNAP2
This gene encodes a member of the neurexin family which functions in the vertebrate nervous system as cell adhesion molecules and receptors. This protein, like other neurexin proteins, contains epidermal growth factor repeats and laminin G domains. In addition, it includes an F5/8 type C domain, discoidin/neuropilin- and fibrinogen-like domains, thrombospondin N-terminal-like domains and a putative PDZ . This protein is localized at the juxtaparanodes of myelinated axons, and mediates interactions between neurons and glia during nervous system development and is also involved in localization of potassium channels within differentiating axons. This gene encompasses almost 1.5% of chromosome 7 and is one of the largest genes in the human genome. It is directly bound and regulated by forkhead box protein P2 (FOXP2), a transcription factor related to speech and language development. This gene has been implicated in multiple neurodevelopmental disorders, including Gilles de la Tourette syndrome, schizophrenia, epilepsy, autism, ADHD and mental retardation.
Research Articles on CNTNAP2
1. Caspr2 is an autoantigen of encephalitis and peripheral nerve hyperexcitability previously attributed to voltage-gated potassium channels antibodies.
Precautions
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