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Key Documents

MABN1832

Sigma-Aldrich

Anti-SK2 (KCa2.2) Antibody, clone K78/29

clone K78/29, from mouse

Sinónimos:

Small conductance calcium-activated potassium channel protein 2, SK2, SKCa 2, SKCa2, KCa2.2

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

mouse

Quality Level

antibody form

purified antibody

antibody product type

primary antibodies

clone

K78/29, monoclonal

species reactivity

human, rat, mouse

technique(s)

immunohistochemistry: suitable (paraffin)
western blot: suitable

isotype

IgG1κ

NCBI accession no.

UniProt accession no.

shipped in

wet ice

target post-translational modification

unmodified

Gene Information

human ... KCNN2(3781)

General description

Small conductance calcium-activated potassium channel protein 2 (UniProt P70604; also known as SK2, SKCa 2, SKCa2, KCa2.2) is encoded by the Kcnn2 gene (Gene ID 54262) in rat species. Small conductance calcium-activated potassium channels mediate cell membrane repolarization following intracellular Ca2+ increase induced by various stimuli, thereby restoring an excited cell back to its resting state. SK2 is involved in afterhyperpolarization (AHP) that follows action potentials in vertebrate neurons. SK2 regulates neuronal excitability by contributing to the slow component of synaptic AHP. Ca2+ activates SK2 through the Ca2+ sensor calmodulin (CaM), which can bind up to four Ca2+ ions. The dynamic coupling between Ca2+ binding to CaM, CaM binding to SK, and the open probability of SK are all essential components of the SK2 activity.

Specificity

Clone K78/29 detects endogenous KCa2.2 in rat brain membrane extracts, as well as the transiently expressed rat SK2 (KCa2.2), but not SK1 (KCa2.1), SK3 (KCa2.3), SK4 (KCa3.1, KCa4), or Kv2.1 constructs in transfected COS-7 cells. Exprected to react with both spliced isoforms of human KCa2.2 reported by UniProt (Q9H2S1).

Immunogen

Epitope: C-terminal cytomplasmic region.
Linear peptide corresponding to a C-terminal cytoplasmic domain sequence of rat SK2 (KCa2.2).

Application

Anti-SK2 (KCa2.2) Antibody, clone K78/29 is an antibody against SK2 for use in Western Blotting, Immunohistochemistry (Paraffin).
Immunohistochemistry Analysis: An 1:50 dilution from a representative lot detected SK2 (KCa2.2) immunoreactivity in human cerebellum, human cerebral cortex, mouse brain, mouse skeletal muscle, rat kidney and rat testis tissue sections.
Western Blotting Analysis: A representative lot detected the transiently expressed rat SK2 (KCa2.2), but not SK1 (KCa2.1), SK3 (KCa2.3), SK4 (KCa3.1, KCa4), or Kv2.1 constructs in transfected COS-7 cells (Courtesy of Professor. James S. Trimmer, UC Davis, CA, USA).
Immunohistochemistry Analysis: A representative lot detected SK2 (KCa2.2) immunoreactivity in adult rat brain hippocampus sections (Courtesy of Professor. James S. Trimmer, UC Davis, CA, USA).
Research Category
Neuroscience
Research Sub Category
Ion Channels & Transporters

Quality

Evaluated by Western Blotting in rat brain tissue lysate.

Western Blotting Analysis: 2.0 µg/mL of this antibody detected SK2 (KCa2.2) in 10 µg rat brain tissue lysate.

Target description

~45 kDa observed. 63.85 kDa (rat), 63.76 kDa (human isoform 1), 26.34 kDa (human isoform 2), 91.60 kDa (mouse) calculated.

Physical form

Format: Purified
Protein G Purified
Purified mouse monoclonal IgG1κ antibody in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.

Other Notes

Concentration: Please refer to lot specific datasheet.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class

12 - Non Combustible Liquids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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