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Key Documents

MABT902

Sigma-Aldrich

Anti-Connexin 43 Antibody, clone P2C4

clone P2C4, from mouse

Sinonimo/i:

Gap junction alpha-1 protein, CX43, Gap junction 43 kDa heart protein

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About This Item

Codice UNSPSC:
12352203
eCl@ss:
32160702
NACRES:
NA.41

Origine biologica

mouse

Livello qualitativo

Forma dell’anticorpo

purified immunoglobulin

Tipo di anticorpo

primary antibodies

Clone

P2C4, monoclonal

Reattività contro le specie

human, rat, mouse

Reattività contro le specie (prevista in base all’omologia)

canine (based on 100% sequence homology), hamster (based on 100% sequence homology), bovine (based on 100% sequence homology), porcine (based on 100% sequence homology), rhesus macaque (based on 100% sequence homology), rabbit (based on 100% sequence homology), guinea pig (based on 100% sequence homology)

tecniche

electron microscopy: suitable
immunocytochemistry: suitable
immunohistochemistry: suitable (paraffin)
immunoprecipitation (IP): suitable
western blot: suitable

Isotipo

IgG2aκ

N° accesso NCBI

N° accesso UniProt

Condizioni di spedizione

ambient

modifica post-traduzionali bersaglio

unmodified

Informazioni sul gene

bovine ... Gja1(281193)
dog ... Gja1(403418)
guinea pig ... Gja1(100379273)
human ... GJA1(2697)
mouse ... Gja1(14609)
rabbit ... Gja1(100008935)
rat ... Gja1(24392)
rhesus monkey ... Gja1(714344)

Descrizione generale

Gap junction alpha-1 protein (UniProt: P08050; also known as Connexin-43, CX43, Gap junction 43 kDa heart protein) is encoded by the Gja1 (also known as Cxn-43) gene (Gene ID: 24392) in rat. The gap junction channels are dodecamers of transmembrane proteins of the connexin family. Connexins usually have a short half-life ( 1.5 5 h) and this short half-life is a key element of coupling regulation as it allows very dynamic and acute changes in gap junction regulation and gap junctional communication. In cardiomyocytes three types of connexins have been identified: Connexin 40, 43, and 45. Each of these connexins form channels with unique and specific electrophysiological properties. Connexin-43 is a multi-pass membrane protein and is the most ubiquitous connexin with widespread tissue expression pattern. Connexin-43 can be phosphorylated at multiple sites and phosphorylation is shown to regulate the kinetics of its trafficking, assembly, gating and turnover in a cell-cycle-stage specific manner. Phosphorylation at Ser325, Ser328 and Ser330 by casein kinase I is reported to modulate gap junction assembly while phosphorylation of Ser368 by protein kinase C gamma isoform leads to disassembly of gap junction plaques and inhibition of gap junction activity. During myocardial ischemia connexin-43 is shown to become dephosphorylated that allows gap junctions to be opened and convey the propagation of ischemia injury. In bladder smooth muscle cells, connexin-43 displays a circadian cycle with low levels during the sleep phase.

Specificità

Clone P2C4 detects Connexin 43 in human heart. It targets an epitope within 23 amino acids from the C-terminal region. It primarily binds to the non-phosphorylated isoform around Ser364/365.

Immunogeno

KLH-conjugated linear peptide corresponding to 23 amino acids from the C-terminal region of rat connexin 43.

Applicazioni

Anti-Connexin 43 Antibody, clone P2C4, Cat. No. MABT902, is a mouse monoclonal antibody that targets Connexin-43 and is tested for use in Electron Microscopy, Immunocytochemistry, Immunohistochemistry (Paraffin), Immunoprecipitation, and Western Blotting.
Immunohistochemistry Analysis: A 1:1,000 dilution from a representative lot detected Connexin 43 in rat heart tissue.

Immunoprecipitation Analysis: A representative lot detected Connexin 43 in Immunoprecipitation applications (Solan, J.L., et. al. (2003). J Cell Sci. 116(Pt 11):2203-11).

Electron Microscopy Analysis: A representative lot detected Connexin 43 in Electron Microscopy applications (Sosinsky, G.E., et. al. (2007). Biochem J. 408(3):375-85).

Immunocytochemistry Analysis: A representative lot detected Connexin 43 in Immunocytochemistry applications (Sosinsky, G.E., et. al. (2007). Biochem J. 408(3):375-85).

Western Blotting Analysis: A representative lot detected Connexin 43 in Western Blotting applications (Sosinsky, G.E., et. al. (2007). Biochem J. 408(3):375-85).

Qualità

Evaluated by Immunohistochemistry in human heart tissue.

Immunohistochemistry Analysis: A 1:1,000 dilution of this antibody detected Connexin 43 in human heart tissue.

Descrizione del bersaglio

43.03 kDa calculated.

Stato fisico

Format: Purified

Altre note

Concentration: Please refer to lot specific datasheet.

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Codice della classe di stoccaggio

12 - Non Combustible Liquids

Classe di pericolosità dell'acqua (WGK)

WGK 1


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Shaohua Xiao et al.
The Journal of clinical investigation, 130(9), 4858-4870 (2020-06-12)
Connexin-43 (Cx43) gap junctions provide intercellular coupling, which ensures rapid action potential propagation and synchronized heart contraction. Alterations in Cx43 localization and reductions in gap junction coupling occur in failing hearts, contributing to ventricular arrhythmias and sudden cardiac death. Recent

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