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AB1726

Sigma-Aldrich

Anti-Connexin 40 Antibody

Chemicon®, from rabbit

Synonym(s):

Cx40, Gap Junction alpha-5 Protein, CxA-5

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About This Item

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

biological source

rabbit

Quality Level

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

purified by

affinity chromatography

species reactivity

mouse, rat, human

manufacturer/tradename

Chemicon®

technique(s)

immunohistochemistry: suitable
western blot: suitable

NCBI accession no.

UniProt accession no.

shipped in

wet ice

target post-translational modification

unmodified

Gene Information

human ... GJA5(2702)

General description

Mouse Connexin 40 is a 358 amino acid gap junction protein with a predicted M.W. of ~40 kDa. It is prominently expressed in lung, heart and skin (see reviews: Kumar & Giula 1996; White, 1995; Evans, 1994; Beyer , 1990; Henneman, 1992; Traub, 1994; Goliger & Paul 1994). One gap junction consists of a cluster of closely packed pairs of transmembrane channels, the connexons, through which materials of low MW diffuse from one cell to a neighboring cell. A connexon is composed of a hexamer of connexins.

Specificity

Reactivity with other species has not been determined.
Reacts with mouse connexin 40.

Immunogen

Anti-Connexin 40 is made against a 19 amino acid peptide sequence within the C-terminal cytoplasmic domain of mouse C×40 (2). Peptide sequence is conserved in human and rat Cx40 (100%), chicken Cx42 (77%), human Cx50 (87%), rat Cx50 (81%) and sheep Cx49 (87%).

Application

Anti-Connexin 40 Antibody is an antibody against Cx40 for use in IHC & WB.
Immunohistochemistry Analysis: An 1:50 dilution of a representative lot detected Connexin 40 immunoreactivity associated with the gap junction between the cardiac myoepithial cells in mouse heart tissue sections.
Western Blot Analysis: An 1:1000 dilution of a representative lot detected Connexin 40 in human (HEK293, HeLa, HepG2, HUVEC, Jurkat) and murine (C2C12, HIN/3T3) cell lysates.
Western Blot Analysis: An 1:000 dilution of a representative lot detected Connexin 40 in human, mouse, and rat heart tissue homogenates, as well as in mouse brain tissue homogenates.

Optimal working dilutions must be determined by end user.

Quality

Evaluated by Western Blot on Jurkat lysates.

Western Blot Analysis: A 1:1000 dilution of this lot detected Connexin 40 in 10 μg of Jurkat lysates.

Target description

40 kDa

Physical form

Purified rabbit polyclonal in buffer containing 0.1 M Tris-Glycine (pH 7.4), 15 mM NaCl containing 0.05% sodium azide.

Analysis Note

Control
Placenta lysate.

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Legal Information

CHEMICON is a registered trademark of Merck KGaA, Darmstadt, Germany

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Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Connexin isoform expression in smooth muscle cells and endothelial cells of hamster cheek pouch arterioles and retractor feed arteries.
Hakim, CH; Jackson, WF; Segal, SS
Microcirculation (New York, N.Y. : 1994) (1994)
Markus Boettcher et al.
Hypertension (Dallas, Tex. : 1979), 57(4), 802-808 (2011-03-02)
The endothelium-derived hyperpolarizing factor (EDHF) contributes critically to the regulation of vascular tone. Its dependency on direct signaling through myoendothelial gap junctions composed of connexins (Cx) is controversially discussed. We studied the impact of Cx40 in EDHF-type dilations in vivo
Volker J Schmidt et al.
PloS one, 8(11), e78782-e78782 (2013-11-16)
Gap junctions are involved in vascular growth and their expression pattern is modulated in response to hemodynamic conditions. They are clusters of intercellular channels formed by connexins (Cx) of which four subtypes are expressed in the cardiovascular system, namely Cx37
Anja Hagen et al.
Cardiovascular research, 83(2), 405-415 (2009-01-30)
Ventricular arrhythmia is one of the most important causes of death in industrialized countries and often accompanies myocardial infarction and heart failure. In recent years modification of gap-junctional coupling has been proposed as a new antiarrhythmic principle. We wanted to
Alexander Jobs et al.
Hypertension (Dallas, Tex. : 1979), 60(6), 1422-1429 (2012-10-24)
The gap junction channel protein connexin40 (Cx40) is crucial in vascular and renal physiology, because Cx40-deficient mice exhibit impaired conduction of endothelium-dependent dilations and pronounced hypertension. The latter precludes mechanistic insights into the role of endothelial Cx40, because long-lasting hypertension

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