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>   home   >   Products   >   Primary Antibodies   >   Signal Transduction   >   K2P1.1 (TWIK-1) (extracellular) Antibody   

K2P1.1 (TWIK-1) (extracellular) Antibody

Affinity purified polyclonal antibody

  • WB - K2P1.1 (TWIK-1) (extracellular) Antibody AG1101-050
    Western blot analysis of rat brain lysate:

    1. Anti-K2P1.1 (TWIK-1) (extracellular) antibody (#AG1101), (1:200).
    2. Anti-K2P1.1 (TWIK-1) (extracellular) antibody, preincubated with the control peptide antigen.

  • WB - K2P1.1 (TWIK-1) (extracellular) Antibody AG1101-050
    Western blot analysis of HEK-293-K2P1.1 transfected cells:
    1. Anti-K2P1.1 (TWIK-1) (extracellular) antibody (#AG1101), (1:300).
    2. Anti-K2P1.1 (TWIK-1) (extracellular) antibody, preincubated with the control peptide antigen.
  • IHC - K2P1.1 (TWIK-1) (extracellular) Antibody AG1101-050
    Expression of K2P1.1 in mouse cerebellum  Immunohistochemical staining of mouse cerebellum using Anti-K2P1.1 (TWIK-1) (extracellular) antibody (#AG1101). A. K2P1.1 channel appears in glial processes (red) . B. staining of Purkinje nerve cells with mouse anti calbindin D28K (a calcium binding protein, green). C. Confocal merge of K2P1.1 channel and calbindin D28K demonstrates the separate localization of these proteins.
Product Information
  • Applications Legend:
  • WB=Western Blot
  • IHC=Immunohistochemistry
  • IHC-P=Immunohistochemistry (Paraffin-embedded Sections)
  • IHC-F=Immunohistochemistry (Frozen Sections)
  • IF=Immunofluorescence
  • FC=Flow Cytopmetry
  • IC=Immunochemistry
  • ICC=Immunocytochemistry
  • IP=Immunoprecipitation
  • DB=Dot Blot
  • CHIP=Chromatin Immunoprecipitation
  • FA=Fluorescence Assay
  • IEM=Immunoelectronmicroscopy
  • EIA=Enzyme Immunoassay
Primary Accession O00180
Reactivity Mouse, Rat
Host Rabbit
Clonality Polyclonal
Calculated MW 38143 Da
Homology Rat, mouse, pig - identical.
Additional Information
Gene ID 3775
Other Names Potassium channel subfamily K member 1, Inward rectifying potassium channel protein TWIK-1, Potassium channel KCNO1, KCNK1, HOHO1, KCNO1, TWIK1
Related products for control experimentsControl peptide antigen (supplied with the antibody free of charge).
Target/Specificity Peptide RQELRKLKRRFLEEHEC, corresponding to amino acid residues 53-69 of human K2P1.1 (Accession O00180).ֲ ֲ Extracellular, near the P1 loop.
Dilution WB~~1:200-1:2000
Peptide Confirmation Confirmed by mass-spectrography and amino acid analysis.
Format Affinity purified antibody, lyophilized powder
Reconstitution 50 µl or 0.2 ml deionized water, depending on the sample size.
Antibody Concentration After Reconstitution 0.8 mg/ml.
Buffer After Reconstitution Phosphate buffered saline (PBS), pH 7.4, 1% BSA, 0.025% NaN3.
Storage Before ReconstitutionLyophilized powder can be stored intact at room temperature for several weeks. For longer periods, it should be stored at -20°C.
Storage After ReconstitutionThe reconstituted solution can be stored at 4ºC for up to 2 weeks. For longer periods, small aliquots should be stored at -20ºC or below. Avoid multiple freezing and thawing. The further dilutions should be made using a carrier protein such as BSA (1%). Centrifuge all antibody preparations before use (10000 × g 5 min).
Control Antigen Storage Before ReconstitutionLyophilized powder can be stored intact at room temperature for several weeks. For longer periods, it should be stored at -20°C.
Control Antigen Reconstitution 100 µl water.
Control Antigen Storage After Reconstitution-20ºC.
Preadsorption Control 1 µg peptide per 1 µg antibody.
Research Areas
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K2P1.1 (also named TWIK-1 or KCNK1) is a member of the 2-pore (2P) domain K+ channels family that at the moment includes 14 members. These channels show little time or voltage dependence and are considered to be “leak” or “background” K+ channels, thereby generating background currents which help set the membrane resting potential and cell excitation. The K2P channels have a signature topology that includes four transmembrane domains and two pore domains with intracellular N- and C termini.  K2P channels are regulated by diverse physical and chemical stimuli including temperature, pH, mechanical stretch, inhalation anesthetics, etc. but are insensitive to the classical K+ channel blockers. K2P1.1 was the first of the K2P channels to be identified and as its original name indicates (Tandem of P domains in a Weak Inward rectifier K+ channel) the channel behaves as a weak inward rectifier when expressed in heterologous systems.  The channel is ubiquitously expressed with the most prominent expression in the brain, kidney and heart. We have now produced a novel antibody directed against a highly conserved epitope in the extracellular region of the human K2P1.1 channel.  The antibody will also react with rat and mouse samples.


References 1. Lesage, F. et al. (1996) EMBO J. 15, 1004. 2. Lesage, F. and Lazdunski, M. (2000) Am. J. Physiol. Renal Physiol.  279, F793. 3. Goldstein, S.A.N. et al.  (2003) Nat. Rev. Neurosci. 2, 175.

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$ 475.00
$ 575.00
Cat# AG1101-050
(40 western blots)
Availability: 2-3 weeks
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