| Field | Specification |
|---|---|
| Mfr No | |
| Accession Number | |
| Alternative Names | KV11.1, Potassium voltage-gated channel subfamily H member 2, Ether-a-go-go-related channel 1 |
| Clonality | |
| Conjugate | |
| Host | |
| Isotype | |
| Product Type | |
| Reactivity | |
| Shipping | |
| Storage | |
| Target |
Overview
Anti-KCNH2 (HERG) (extracellular)-FITC Antibody is an antibody targeting KV11.1, Potassium voltage-gated channel subfamily H member 2, Ether-a-go-go-related channel 1 Polyclonal raised in Rabbit (Fluorescein isothiocyanate (FITC)). This antibody is commonly used in FC, LCI to detect, localize, or compare expression of the target across samples.
Key elements and design rationale
- Target: KV11.1, Potassium voltage-gated channel subfamily H member 2, Ether-a-go-go-related channel 1 (also reported as KV11.1, Potassium voltage-gated channel subfamily H member 2, Ether-a-go-go-related channel 1).
- Immunogen/epitope region: Extracellular, between S1 and S2 domains..
- Homology note: Rat, mouse - 11/16 amino acid residues identical; dog, rabbit - 15/16 amino residues identical (informative for cross-species interpretation).
- Species reactivity (as provided): Human, Mouse.
- Cited use: IP, IHC, ICC, FC (literature use does not guarantee performance in every setup).
- Lot quality control (as provided): Western blot analysis (unlabeled antibody, #APC-109) and direct flow cytometry (labeled antibody)..
- Peptide confirmation: Confirmed by amino acid analysis and mass spectrometry.
- Blocking peptide: Available for antigen preadsorption control where appropriate.
These attributes help researchers interpret whether signal reflects the intended target in a given assay and sample context.
Biological background
The KV11.1 (HERG) channel is a member of the ether-a-go-go (EAG) subfamily of voltage-dependent K+ channels that includes the related proteins KV11.2 and KV11.3 (erg2 and erg3). KV11.1 possesses the signature structure of the voltage-dependent K+ channels: six membrane-spanning domains and intracellular N- and C-termini.The KV11.1 current is characterized by strong inward rectification with slow activation and very rapid inactivation kinetics. The channel is expressed in the brain and heart (where it underlies the IKr current) and has a central role in mediating repolarization of action potentials.1,2Mutations in the KV11.1 channel cause inherited long QT syndrome (LQTS) or abnormalities in the repolarization of the heart that are associated with life-threatening arrhythmias and sudden death.
Research relevance and current trends
- Mapping receptor/channel localization across neuronal subtypes and subcellular compartments.
- Linking trafficking or surface expression changes to activity-dependent signaling and plasticity.
- Using KO/KD or blocking-peptide concepts to strengthen antibody-based target assignment.
Common research applications
- Flow cytometry (direct/indirect): quantify target-positive populations and shifts in expression across subsets.
- Live cell imaging (LCI): support extracellular-epitope detection on non-permeabilized cells when appropriate.
Interpretation typically benefits from comparing matched sample sets (e.g., treated vs control, WT vs KO/KD) and using orthogonal readouts where feasible.
Notes for experimental interpretation
- Isoforms and post-translational modifications can shift apparent molecular weight or epitope accessibility across samples.
- Cross-species signal may depend on epitope conservation; consult the provided homology note when selecting models.
- Permeabilization, fixation, and antigen retrieval can change accessibility of intracellular vs extracellular epitopes.
- Conceptual control: antigen preadsorption (blocking peptide) can help assess signal dependence on the immunogen region.
- Provided control suggestions: Negative control: RIC-001-F.
- Application notes: see product-specific dilution/usage notes and control concepts provided in the dataset.
Application abbreviations: CBE- Cell-based ELISA, FC- Flow cytometry, ICC- Immunocytochemistry, IE- Indirect ELISA, IF- Immunofluorescence, IFC- Indirect flow cytometry, IHC- Immunohistochemistry, IP- Immunoprecipitation, LCI- Live cell imaging, N- Neutralization, WB- Western blot. Species abbreviations: H- Human, M- Mouse, R- Rat.
Recommended controls: Blocking peptide: BLP-PC109; Negative control: RIC-001-F.
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.
