Anti-Kir7.1 (extracellular) Antibody

Inward rectifier potassium channel 13, KCNJ13
    Cat #: APC-125
    Alternative Name Inward rectifier potassium channel 13, KCNJ13
  • Lyophilized Powder
  • Antigen Incl.
  • Type: Polyclonal
    Host: Rabbit
    Reactivity: h, m, r
    • Peptide (C)EMNGDLEIDHDVPPE, corresponding to amino acid residues 80-94 of rat KCNJ13 (Accession O70617). Extracellular loop.
    • Anti-Kir7.1 (extracellular) Antibody
    Accession (Uniprot) Number O70617
    Gene ID 94341
    Peptide confirmation Confirmed by amino acid analysis and mass spectrometry.
    Homology Mouse - identical; human - 13/15 amino acid residues identical.
    RRID AB_10560908.
    Purity Affinity purified on immobilized antigen.
    Form Lyophilized powder. Reconstituted antibody contains phosphate buffered saline (PBS), pH 7.4, 1% BSA, 0.05% NaN3.
    Isotype Rabbit IgG.
    Storage before reconstitution The antibody ships as a lyophilized powder at room temperature. Upon arrival, it should be stored at -20°C.
    Reconstitution 25 μl, 50 μl or 0.2 ml double distilled water (DDW), depending on the sample size.
    Antibody concentration after reconstitution 0.8 mg/ml.
    Storage after reconstitution The reconstituted solution can be stored at 4°C for up to 1 week. For longer periods, small aliquots should be stored at -20°C. Avoid multiple freezing and thawing. Centrifuge all antibody preparations before use (10000 x g 5 min).
    Negative control antigen storage before reconstitution Lyophilized powder can be stored intact at room temperature for 2 weeks. For longer periods, it should be stored at -20°C.
    Negative control antigen reconstitution 100 µl double distilled water (DDW).
    Negative control antigen storage after reconstitution -20°C.
    Preadsorption Control 1 μg peptide per 1 μg antibody.
    Standard quality control of each lot Western blot analysis.
    Applications: ifc, ih, wb
    May also work in: ic*, ip*, lci*
    Western blot
    • Anti-Kir7.1 (extracellular) Antibody
      Western blot analysis of rat brain membrane (lanes 1 and 4), mouse brain (lanes 2 and 5) and mouse kidney lysates (lanes 3 and 6):
      1-3. Anti-Kir7.1 (extracellular) Antibody (#APC-125), (1:200).
      4-6. Anti-Kir7.1 (extracellular) Antibody, preincubated with the control peptide antigen.
    • Anti-Kir7.1 (extracellular) Antibody
      Expression of Kir7.1 in rat kidney
      Immunohistochemical staining of paraffin embedded section of rat kidney using Anti-Kir7.1 (extracellular) Antibody (#APC-125), (1:100). Staining is present in both distal (DT) and proximal (PT) tubules and in the collecting ducts (CD) in the renal cortex. Note that staining is absent both in glomeruli (Gl) and blood vessels (arrow). Hematoxilin is used as the counterstain.
    Indirect flow cytometry
    • Anti-Kir7.1 (extracellular) Antibody
      Cell surface detection of Kir7.1 in live intact Jurkat (human T cell leukemia) cell line:
      ___ Cells + Goat-anti-Rabbit-FITC.
      ___ Cells + Anti-Kir7.1 (extracellular) Antibody (#APC-125), (1:20) + Goat-anti-Rabbit-FITC.
    • The control antigen is not suitable for this application.
    1. Bond, C.T. et al. (1994) Rec. Channels 2, 183.
    2. Yang, D. et al. (2008) Exp. Eye Res. 86, 81.
    3. Hejtmancik, J.F. et al. (2008) Am. J. Hum. Genet. 82, 174.
    Scientific background

    Kir7.1 (KCNJ13) is a member of the inward rectifying K+ channel family. The family includes 15 members that are structurally and functionally different from the voltage-dependent K+ channels.

    The family’s protein topology consists of two transmembrane domains that flank a single and highly conserved pore region with intracellular N- and C-termini. As is the case for the voltage-dependent K+ channels, the functional unit for the Kir channels is composed of four subunits that can assemble as either homo- or heteromers.

    Kir channels are characterized by a K+ efflux that is limited by depolarizing membrane potentials thus making them essential for controlling resting membrane potential and K+ homeostasis1.

    Kir7.1, an inwardly rectifying K+ channel with unusual permeation properties is localized in epithelial cells of the thyroid, small intestine, kidney tubules, choroid plexus and in retinal pigment epithelium (RPE), where it forms a major component of the apical membrane K+ conductance2.

    A mutation in the gene encoding the channel was found to cause snowflake vitreoretinal degeneration (SVD) which is a developmental and progressive hereditary eye disorder that affects multiple tissues within the eye3.

    Application key:

    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 reactivity key:

    H- Human, M- Mouse, R- Rat
    Last update: 24/01/2020

    Anti-Kir7.1 (extracellular) Antibody (#APC-125) is a highly specific antibody directed against an epitope of the rat protein. The antibody can be used in western blot, immunohistochemistry and indirect flow cytometry applications. The antibody is directed against an extracellular epitope and is thus ideal for detecting Kir7.1 in living cells. It has been designed to recognize Kir7.1 from rat, mouse and human samples.

    For research purposes only, not for human use



    Scientific Background


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