- Catalog number
- PA1047-1
- Size / count
- 100 µg/Vial
- Dry ice
- No
- Hazardous
- No
- Discontinued
- No
- Background
- Intermediate conductance calcium-activated potassium channel protein 1 (KCNN4, Kca3.1) is part of a potentially heterotetrameric voltage-independent potassium channel that is activated by intracellular calcium. Activation is followed by membrane hyperpolarization, which promotes calcium influx. KCNN4 may be part of the predominant calcium-activated potassium channel in T-lymphocytes. This gene is similar to other KCNN family potassium channel genes, but it differs enough to possibly be considered as part of a new subfamily.
- Synonyms
- Intermediate conductance calcium-activated potassium channel protein 4; SK4; SKCa 4; SKCa4; IKCa1; IK1; KCa3.1; KCa4; Putative Gardos channel; KCNN4; IK1, IKCA1, KCA4, SK4
- Gene Name
- KCNN4
- Gene ID
- 3783
- UniProt
- O15554
- Host
- Rabbit
- Reactivity
- Human, Mouse, Rat
- Cross Reactivity
- No cross-reactivity with other proteins
- Immunogen
- A synthetic peptide corresponding to a sequence at the N-terminus of human KCNN4, different from the related mouse and rat sequences by two amino acids.
- Clonality
- Polyclonal
- Tissue Specificity
- Widely expressed in non-excitable tissues.
- Applications
- WB
- Field of Research
- Cell Biology, Neuroscience, Neurotransmission, Potassium Channels, Receptors / Channels
- Purification
- Immunogen affinity purified.
- Concentration
- Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.
- Form
- Lyophilized
- Reconstitution
- Add 0.2ml of distilled water will yield a concentration of 500ug/ml.
- Function
- Forms a voltage-independent potassium channel that is activated by intracellular calcium. Activation is followed by membrane hyperpolarization which promotes calcium influx. Required for maximal calcium influx and proliferation during the reactivation of naive T-cells. The channel is blocked by clotrimazole and charybdotoxin but is insensitive to apamin. .
- References & Citations
- 1. Joiner WJ, Wang LY, Tang MD, Kaczmarek LK. Joiner, W.J., Wang, L.Y., Tang, M.D. and Kaczmarek, L.K. hSK4, a member of a novel subfamily of calcium-activated potassium channels. Proc. Natl. Acad. Sci. U.S.A.1997; 94 (20), 11013-11018. 2. Hoffman JF, Joiner W, Nehrke K, Potapova O, Foye K, Wickrema A. The hSK4 (KCNN4) isoform is the Ca2+-activated K+ channel (Gardos channel) in human red blood cells. Proc. Natl. Acad. Sci. U.S.A.2003; 100 (12), 7366-7371. 3. Jones HM, Hamilton KL, Papworth GD, Syme CA, Watkins SC, Bradbury NA, Devor DC. Role of the NH2 terminus in the assembly and trafficking of the intermediate conductance Ca2+-activated K+ channel hIK1. J. Biol. Chem.2004; 279 (15), 15531-15540.
- Storage Conditions
- Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.
- Calculated Molecular Weight
- 47696 MW
- Observed Molecular Weight
- 48 kDa
- Specificity
- No cross reactivity with other proteins.
- Gene Name Synonym
- Intermediate conductance calcium-activated potassium channel protein 4
- Subcellular Location
- Membrane; Multi-pass membrane protein.
- Sequence Similarities
- Belongs to the integrin alpha chain family.
- Protein Name
- Intermediate conductance calcium-activated potassium channel protein 4
- Isotype
- Rabbit IgG
- Contents
- Each vial contains 4 mg Trehalose, 0.9 mg NaCl and 0.2 mg Na2HPO4.