anti-Connexin 43 antibody

anti-Connexin 43 antibody for IHC-Formalin-fixed paraffin-embedded sections,Western blot and Human,Mouse,Rat

Cell Biology and Cellular Response antibody; Signaling Transduction antibody; Cardiomyocyte Cell Surface Marker antibody
publication_link Publication1


Product Description Rabbit Polyclonal antibody recognizes Connexin 43
Tested Reactivity Hu, Ms, Rat
Predict Reactivity Bov, Xenopus
Tested Application IHC-P, WB
Host Rabbit
Clonality Polyclonal
Isotype IgG
Target Name Connexin 43
Antigen Species Human
Immunogen KLH-conjugated synthetic peptide corresponding to aa. 107-138 (N-terminus) of Human Connexin 43.
Conjugation Un-conjugated
Alternate Names Gap junction 43 kDa heart protein; CX43; PPKCA; CMDR; Gap junction alpha-1 protein; HSS; AVSD3; Connexin-43; HLHS1; EKVP; GJAL; ODDD; Cx43

Application Instructions

Application Suggestion
Tested Application Dilution
Application Note * The dilutions indicate recommended starting dilutions and the optimal dilutions or concentrations should be determined by the scientist.
Positive Control HeLa


Form Liquid
Purification Purification with Protein G.
Buffer PBS and 0.09% (W/V) Sodium azide
Preservative 0.09% (W/V) Sodium azide
Storage Instruction For continuous use, store undiluted antibody at 2-8°C for up to a week. For long-term storage, aliquot and store at -20°C or below. Storage in frost free freezers is not recommended. Avoid repeated freeze/thaw cycles. Suggest spin the vial prior to opening. The antibody solution should be gently mixed before use.
Note For laboratory research only, not for drug, diagnostic or other use.


Database Links

GeneID: 14609 Mouse GJA1

GeneID: 24392 Rat GJA1

GeneID: 2697 Human GJA1

Gene Symbol GJA1
Gene Full Name gap junction protein, alpha 1, 43kDa
Background This gene is a member of the connexin gene family. The encoded protein is a component of gap junctions, which are composed of arrays of intercellular channels that provide a route for the diffusion of low molecular weight materials from cell to cell. The encoded protein is the major protein of gap junctions in the heart that are thought to have a crucial role in the synchronized contraction of the heart and in embryonic development. A related intronless pseudogene has been mapped to chromosome 5. Mutations in this gene have been associated with oculodentodigital dysplasia, autosomal recessive craniometaphyseal dysplasia and heart malformations. [provided by RefSeq, May 2014]
Function Gap junction protein that acts as a regulator of bladder capacity. A 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. May play a critical role in the physiology of hearing by participating in the recycling of potassium to the cochlear endolymph. Negative regulator of bladder functional capacity: acts by enhancing intercellular electrical and chemical transmission, thus sensitizing bladder muscles to cholinergic neural stimuli and causing them to contract (By similarity). [UniProt]
Cellular Localization Cell membrane; Multi-pass membrane protein. Cell junction, gap junction
Research Area Cell Biology and Cellular Response antibody; Signaling Transduction antibody; Cardiomyocyte Cell Surface Marker antibody
Calculated MW 43 kDa
PTM Phosphorylated at Ser-368 by PRKCG; phosphorylation induces disassembly of gap junction plaques and inhibition of gap junction activity (By similarity). Phosphorylation at Ser-325, Ser-328 and Ser-330 by CK1 modulates gap junction assembly. Phosphorylation at Ser-368 by PRKCD triggers its internalization into small vesicles leading to proteasome-mediated degradation (By similarity).
Sumoylated with SUMO1, SUMO2 and SUMO3, which may regulate the level of functional Cx43 gap junctions at the plasma membrane. May be desumoylated by SENP1 or SENP2.
S-nitrosylation at Cys-271 is enriched at the muscle endothelial gap junction in arteries, it augments channel permeability and may regulate of smooth muscle cell to endothelial cell communication.

Images (2) Click the Picture to Zoom In

  • ARG55217 anti-Connexin 43 antibody IHC-P image

    Immunohistochemistry: Formalin-fixed and paraffin-embedded Human cancer tissue stained with ARG55217 anti-Connexin 43 antibody.

  • ARG55217 anti-Connexin 43 antibody WB image

    Western blot: 35 µg of HeLa cell lysate stained with ARG55217 anti-Connexin 43 antibody at 1:1000 dilution.

Specific References

VEGF-C/VEGFR-3 axis protects against pressure-overload induced cardiac dysfunction through regulation of lymphangiogenesis.

WB / Mouse

Qiu-Yue Lin et al.
Clin Transl Med.,  (2021)