Connexin 43/GJA1 Antibody


Western Blot: Connexin 43/GJA1 Antibody [NBP1-67530] - Analysis of extracts from A549 cells, using. The lane on the right is treated with the synthesized peptide.
Immunocytochemistry/ Immunofluorescence: Connexin 43/GJA1 Antibody [NBP1-67530] - Analysis of A549 cells, using. The picture on the right is treated with the synthesized peptide.
Immunohistochemistry-Paraffin: Connexin 43/GJA1 Antibody [NBP1-67530] - Analysis of paraffin-embedded human brain tissue, using. The picture on the right is treated with the synthesized peptide.

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Connexin 43/GJA1 Antibody Summary

The antiserum was produced against synthesized peptide derived from human Connexin 43. The immunogen region is: C-terminal.
Gap Junctions Marker
Connexin 43 Antibody detects endogenous levels of total Connexin 43 protein.
Immunogen affinity purified
Innovator's Reward
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  • Western Blot 1:500-1:1000
  • ELISA 1:10000
  • Immunocytochemistry/Immunofluorescence 1:100-1:500
  • Immunohistochemistry 1:50-1:100
  • Immunohistochemistry-Paraffin 1:50-1:100
Theoretical MW
43 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Positive Control
Adrenal Lysate (NB820-60567)
Adrenal Lysate (NB820-59171)
A-431 Lysate (NBL1-26466)
Brain Cerebral Cortex Lysate (NB820-60574)

Packaging, Storage & Formulations

Store at -20C. Avoid freeze-thaw cycles.
PBS (without Mg2+ and Ca2+, pH 7.4), 0.15M NaCl and 50% Glycerol
0.02% Sodium Azide
1 mg/ml
Immunogen affinity purified

Alternate Names for Connexin 43/GJA1 Antibody

  • Connexin 43
  • connexin-43
  • CX43
  • CX43gap junction protein, alpha-like
  • DFNB38
  • Gap junction 43 kDa heart protein
  • gap junction alpha-1 protein
  • gap junction protein, alpha 1, 43kDa (connexin 43)
  • gap junction protein, alpha 1, 43kDa
  • GJA1
  • GJAL
  • HSS
  • ODD
  • ODDD
  • ODOD
  • SDTY3


The connexins are a group of GAP junction proteins, which form a hexamer to compose a connexon. Clusters of connexons form a GAP junction through which low molecular weight proteins may diffuse from cell to cell. Several mammalian cells with malignant phenotypes exhibit decreased connexin expression and GAP junction communication. There is a decrease in GAP junctional communication in Src transformed cells. The decreased communication appears to be associated with tyrosine phosphorylation of connexin 43. Activated c-Src phosphorylates the C-terminal tail of connexin 43 on residue Tyr 265, resulting in a stable interaction between both proteins leading to inhibition of GAP junctional communication. In addition to tyrosine phosphorylation, connexin 43 has also been shown to be phosphorylated on serine in the absence of Src kinases and on both serine and tyrosine in cells expressing Src kinases such as pp60v-Src and/or c-Src.


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Product General Protocols

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Video Protocols

WB Video Protocol
ICC/IF Video Protocol

FAQs for Connexin 43/GJA1 Antibody (NBP1-67530). (Showing 1 - 1 of 1 FAQ).

  1. Can I use Connexin 43/GJA1 Antibody (3E5) in immunohistochemistry for rat ?
    • I have taken a look at this particular clone however we have not tested this in IHC or in rat. The homology with rat is 97.0% which is good however we do not know if this will work in IHC. Please see this antibody NBP1-67530. This has been validated for both IHC and Rat. Another product, NB100-91717, has been validated for Rat and IHC-Paraffin.

Positive Control Lysate(s)

Secondary Antibodies


Isotype Controls

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Bioinformatics Tool for Connexin 43/GJA1 Antibody (NBP1-67530)

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Research Areas for Connexin 43/GJA1 Antibody (NBP1-67530)

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Blogs on Connexin 43/GJA1.

Connexin: Bridging the Gap of Intercellular Communication
Connexin 43/GJA1 is a member of the connexin gene family and the most abundant protein component found within gap junctions. Gap junctions are the cell-to-cell contacts that provide direct intercellular communication between cells by regulating back a...  Read full blog post.

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Gene Symbol GJA1