Anti-Connexin 43/GJA1 Antibody Picoband®

SKU:BHA21006625
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Boster Bio
Boster Bio
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Overview
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Anti-GJA1 antibody (Rabbit, Polyclonal, Rabbit IgG) recommended for WB, IHC, Flow Cytometry, ELISA Commonly used in Immunology & Inflammation studies where these format selectors and application compatibility are required.
Target GJA1
Host Rabbit
Reactivity Human,Mouse,Rat
Isotype Rabbit IgG
Application(s) WB, IHC, Flow Cytometry, ELISA
Options selector
Catalog no. Size Conjugation
PA1026-1 100 ug/vial
Available Options

Select the variant that best fits your experiment. Availability and lead time may vary by option.

  • Options:
    • 100 ug/vial — Unconjugated; 100 ug/vial — Carrier Free
      Contents: Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.01mg Thimerosal, 0.01mg NaN3.
      Form: Lyophilized
      Applications: IHC,WB
      Application details: Immunohistochemistry (Frozen Section), 0.5-1μg/ml
      Immunohistochemistry (Paraffin-embedded Section), 0.5-1μg/ml
      Western blot, 0.1-0.5μg/ml
      Storage: Store at -20℃ for one year from date of receipt. After reconstitution, at 4℃ for one month. It can also be aliquotted and stored frozen at -20℃ for six months. Avoid repeated freeze-thaw cycles.
    • 100 ug/vial — Biotin; 100 ug/vial — Cy3; 100 ug/vial — Fluoro488; 100 ug/vial — Fluoro550; 100 ug/vial — Fluoro594; 100 ug/vial — FITC; 100 ug/vial — APC; 100 ug/vial — PE; 100 ug/vial — Fluoro647
      Contents: Each vial contains 50% glycerol, 0.9% NaCl, 0.2% Na2HPO4, 0.02% NaN3.
      Form: Liquid
      Applications: Flow Cytometry | WB,IHC,ELISA
      Application details: Western blot, 0.25-0.5μg/ml
      Immunohistochemistry (Paraffin-embedded Section), 2-5μg/ml
      ELISA, 0.1-0.5μg/ml
      Flow Cytometry, 1-3μg/1x106 cells
      Storage: At -20˚C for one year from date of receipt. Avoid repeated freezing and thawing. | At -20˚C for one year from date of receipt. Avoid repeated freezing and thawing. Protect from light.
    • 100 ug/vial — HRP
      Contents: Each vial contains 50% glycerol, 0.9% NaCl, 0.2% Na2HPO4.
      Form: Liquid
      Applications: WB,IHC,ELISA
      Application details: Western blot, 0.25-0.5μg/ml
      Immunohistochemistry (Paraffin-embedded Section), 2-5μg/ml
      ELISA, 0.1-0.5μg/ml
      Storage: At -20˚C for one year from date of receipt. Avoid repeated freezing and thawing.
  • Lead time: typically ships in 2-3 business days; timing may vary by selected option.
  • Storage: refer to the option details above and the product datasheet for storage and handling.
  • Shipping: cold-chain shipment (typically with ice packs).
  • Upon receipt: store at the recommended temperature as soon as possible; avoid repeated freeze-thaw cycles.
  • Sales terms and conditions: Please review prior to ordering.
Field Specification
Mfr No PA1026-1
Alternative Names Gap junction alpha-1 protein;Connexin-43;Cx43;Gap junction 43 kDa heart protein;GJA1;GJAL;
Cellular Localization Cell membrane ; Multi-pass membrane protein . Cell junction, gap junction . Endoplasmic reticulum .
Clonality
  • Polyclonal
Concentration Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.
Gene ID 2697
Host Rabbit
Immunogen A synthetic peptide corresponding to a sequence at the C-terminus of human Connexin 43, identical to the related rat and mouse sequences.
Isotype
  • Rabbit IgG
Molecular Weight 43 kDa
Product Type
  • Antibodies
  • Primary Antibodies
Reactivity
  • Human
  • Mouse
  • Rat
Reconstitution Add 0.2ml of distilled water will yield a concentration of 500ug/ml.
Target GJA1
UniProt # P17302

Overview

Anti-Connexin 43/GJA1 Antibody Picoband® is an antibody targeting GJA1. Common applications include WB, IHC, Flow Cytometry, ELISA. Key specifications include host: Rabbit; clonality: Polyclonal; isotype: Rabbit IgG; reactivity: Human,Mouse,Rat; observed MW: 43 kDa; calculated MW: 43008 MW.

Boster Bio Anti-Connexin 43/GJA1 Antibody catalog # PA1026-1. Tested in IHC, WB applications. This antibody reacts with Human, Mouse, Rat. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.

Key elements and design rationale

  • Target: GJA1 — Gap junction alpha-1 protein
  • Antibody format: Host: Rabbit; Clonality: Polyclonal; Isotype: Rabbit IgG
  • Species reactivity: Human,Mouse,Rat
  • Molecular weight guidance: Observed: 43 kDa; Calculated: 43008 MW

Specificity note: No cross reactivity with other proteins.

Biological background

Protein function (datasheet): 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). .

Scientific background (datasheet): Connexins 43 (Cx43), also called GAP Junction Protein, alpha-1 (GJA1). Connexin 43 is a member of the connexin gene family which abundantly expressed in the heart and liver and was mapped to 6q21-q23.2. Connexin43, the major protein of gap junctions in the heart, is targeted by several protein kinases that regulate myocardial cell-cell coupling. Mutations in the connexin43 gap-junction gene, which lead to abnormally regulated cell-cell communication, are associated with visceroatrial heterotaxia. Cx43 must also play a critical role in the physiology of hearing, presumably by participating in the recycling of potassium to the cochlear endolymph.

Cellular localization (datasheet): Cell membrane ; Multi-pass membrane protein . Cell junction, gap junction . Endoplasmic reticulum .

Tissue details (datasheet): Expressed in the heart and fetal cochlea. .

Sequence similarities (datasheet): Belongs to the connexin family. Alpha-type (group II) subfamily.

Research relevance and current trends

  • Commonly studied in contexts related to Atherosclerosis,Cardiovascular,Cell Adhesion,Cytoskeleton/ECM,Signal Transduction,Vascular Inflammation.
  • Supports comparative expression analysis across conditions, genotypes, or treatments when paired with appropriate controls.
  • Useful for confirming target presence and subcellular distribution using orthogonal readouts (e.g., microscopy vs. immunoblotting).

Common research applications

  • Western blot (WB): Compare relative target abundance and apparent size/isoforms across samples; interpret bands in light of expected MW and potential PTMs.
  • ELISA: Measure target abundance in compatible matrices using a standard-curve readout; ensure dilution linearity and appropriate controls.
  • Immunohistochemistry (IHC): Assess tissue distribution and cell-type patterns; interpret staining with appropriate negative controls and antigen context.
  • Flow cytometry: Quantify target-positive populations in single-cell suspensions; pair with viability and isotype/FMO controls conceptually.

Notes for experimental interpretation

  • Consider isoforms, post-translational modifications, and processing that can shift apparent molecular weight or localization.
  • Cross-reactivity (datasheet): No cross-reactivity with other proteins
  • Use appropriate positive and negative controls (e.g., KO/KD, blocking peptide, or isotype controls) to support specificity interpretation.

As a polyclonal antibody, this reagent may recognize multiple epitopes on the target, which can improve detection robustness but may require careful specificity controls.

Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.

My colleagues were well pleased with the WB result of your anti-Connexin 43/GJA1 antibody. However we have observed positive staining in pigmented layer of retina cell membrane using this antibody. Is that expected? Could you tell me where is GJA1 supposed to be expressed?
From what I have seen in literature, pigmented layer of retina does express GJA1. Generally GJA1 expresses in cell membrane. Regarding which tissues have GJA1 expression, here are a few articles citing expression in various tissues: Brain, Pubmed ID: 15489334 Cerebellum, Pubmed ID: 14702039 Heart muscle, Pubmed ID: 1696265
We have been able to see staining in rat cerebellum. What should we do? Is anti-Connexin 43/GJA1 antibody supposed to stain cerebellum positively?
From literature cerebellum does express GJA1. From Uniprot.org, GJA1 is expressed in pigmented layer of retina, heart muscle, cerebellum, brain, among other tissues. Regarding which tissues have GJA1 expression, here are a few articles citing expression in various tissues: Brain, Pubmed ID: 15489334 Cerebellum, Pubmed ID: 14702039 Heart muscle, Pubmed ID: 1696265

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