WB
H M R Mk Z
Endogenous
100
Rabbit
#P05023
476
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
Storage
Specificity / Sensitivity
Species Reactivity:
Human, Mouse, Rat, Monkey, Zebrafish
Source / Purification
Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues near the amino terminus of human Na,K-ATPase α1 subunit. Antibodies are purified using peptide affinity chromatography.
Background
The Na,K-ATPase is an integral membrane heterodimer belonging to the P-type ATPase family. This ion channel uses the energy derived from ATP hydrolysis to maintain membrane potential by driving sodium export and potassium import across the plasma membrane against their electrochemical gradients. It is composed of a catalytic α subunit and a β subunit (reviewed in 1). Several phosphorylation sites have been identified for the α1 subunit. Tyr10 is phosphorylated by an as yet undetermined kinase (2), Ser16 and Ser23 are phosphorylated by PKC, and Ser943 is phosphorylated by PKA (3-5). All of these sites have been implicated in the regulation of enzyme activity in response to hormones and neurotransmitters, altering trafficking and kinetic properties of Na,K-ATPase. Altered phosphorylation in response to angiotensin II stimulates activity in the rat proximal tubule (6). Na,K-ATPase is also involved in other signal transduction pathways. Insulin regulates its localization in differentiated primary human skeletal muscle cells, and this regulation is dependent on ERK1/2 phosphorylation of the α subunit (7). Na,K-ATPase and Src form a signaling receptor complex that affects regulation of Src kinase activity and, subsequently, its downstream effectors (8,9).
- Therien, A.G. and Blostein, R. (2000) Am J Physiol Cell Physiol 279, C541-66.
- Féraille, E. et al. (1999) Mol Biol Cell 10, 2847-59.
- Fisone, G. et al. (1994) J Biol Chem 269, 9368-73.
- Feschenko, M.S. and Sweadner, K.J. (1995) J Biol Chem 270, 14072-7.
- Beguin, P. et al. (1994) J Biol Chem 269, 24437-45.
- Yingst, D.R. et al. (2004) Am J Physiol Renal Physiol 287, F713-21.
- Al-Khalili, L. et al. (2004) J Biol Chem 279, 25211-8.
- Tian, J. et al. (2006) Mol Biol Cell 17, 317-26.
- Liang, M. et al. (2006) J Biol Chem 281, 19709-19.
Species Reactivity
Species reactivity is determined by testing in at least one approved application (e.g., western blot).
Western Blot Buffer
IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.
Applications Key
WB: Western Blotting
Cross-Reactivity Key
H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected
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