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Anti-Kir7.1 (extracellular)-ATTO Fluor-488 Antibody

Inward rectifier potassium channel 13, KCNJ13

Cat #: APC-125-AG
Alternative Name Inward rectifier potassium channel 13, KCNJ13
Lyophilized Powder yes
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.
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_2341031.
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.
Label ATTO-488. Maximum absorption 501 nm; maximum fluorescence 523 nm. The fluorescence is excited most efficiently in the 480 – 515 nm range. This label is analogous to the well known dye fluorescein isothiocyanate (FITC) and can be used with filters typically used to detect FITC.
Storage before reconstitution The antibody ships as a lyophilized powder at room temperature. Upon arrival, it should be stored at -20°C.
Reconstitution 50 µl double distilled water (DDW).
Antibody concentration after reconstitution 1 mg/ml.
Storage after reconstitution The reconstituted solution can be stored at 4°C, protected from the light, 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 × g 5 min).
Standard quality control of each lot Western blot analysis (unlabeled antibody, #APC-125), and immunohistochemistry (labeled antibody).
Applications: if, ih
May also work in: ic*, lci*
  • Expression of Kir7.1 in rat kidney
    Expression of Kir7.1 in rat kidney
    Immunohistochemical staining of paraffin-embedded rat kidney sections using Anti-Kir7.1 (extracellular)-ATTO Fluor-488 Antibody (#APC-125-AG), (1:50). Kir7.1 staining (green) is present in convoluted tubules in the renal cortex. Glomeruli (G) are negative. Cell nuclei were visualized with Hoechst 33342 (blue).
  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: 08/01/2023

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

Anti-Kir7.1 (extracellular)-ATTO Fluor-488 Antibody (#APC-125-AG) is directly labeled with an ATTO-488 fluorescent dye. ATTO dyes are characterized by strong absorption (high extinction coefficient), high fluorescence quantum yield, and high photo-stability. The ATTO-488 label is analogous to the well known dye fluorescein isothiocyanate (FITC) and can be used with filters typically used to detect FITC. Anti-Kir7.1 (extracellular)-ATTO Fluor-488 Antibody is especially suited for experiments requiring simultaneous labeling of different markers.

For research purposes only, not for human use



Scientific Background

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