|Application ||WB, IHC, IF|
|Calculated MW||30382 Da|
|Other Names||5'-AMP-activated protein kinase subunit beta-1, AMPK subunit beta-1, AMPKb, PRKAB1, AMPK|
|Target/Specificity||A synthetic phospho-peptide corresponding to residues surrounding Serine 181 of human AMPK beta was used as immunogen.|
|Format||50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.|
|Storage||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.|
|Precautions||AMPK-beta1 Antibody Phospho-pS181 is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Non-catalytic subunit of AMP-activated protein kinase (AMPK), an energy sensor protein kinase that plays a key role in regulating cellular energy metabolism. In response to reduction of intracellular ATP levels, AMPK activates energy-producing pathways and inhibits energy-consuming processes: inhibits protein, carbohydrate and lipid biosynthesis, as well as cell growth and proliferation. AMPK acts via direct phosphorylation of metabolic enzymes, and by longer-term effects via phosphorylation of transcription regulators. Also acts as a regulator of cellular polarity by remodeling the actin cytoskeleton; probably by indirectly activating myosin. Beta non-catalytic subunit acts as a scaffold on which the AMPK complex assembles, via its C-terminus that bridges alpha (PRKAA1 or PRKAA2) and gamma subunits (PRKAG1, PRKAG2 or PRKAG3).|
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Provided below are standard protocols that you may find useful for product applications.
The 5-AMP-activated protein kinase (AMPK) is a member of the SNF1 (sucrose nonfermentor) kinase family (1). AMPK is a heterotrimeric protein comprising alpha (63 kDa), beta (38 kDa) and gamma (38 kDa) subunits (2). The alpha subunit is the catalytic subunit, while beta and gamma are noncatalytic subunits, although they have been found to interact with the active subunit in liver. AMPK regulates fatty acid and sterol synthesis by phosphorylation of acetyl-CoA as well as cholesterol synthesis via phosphorylation and inactivation of hydroxymethylglutaryl-CoA reductase (3). AMPK beta-1 mediates the association of the AMPK heterotrimeric complex in vitro (2). Two isoforms have been found, and the difference in expression patterns indicates tissue-specific roles for these isoforms (4). Phosphorylation on serine 24/25 and serine 182 have been linked to AMPK localization.
1. Mitchelhill, K. I., Stapleton, D., Gao, G., House, C., Michell, B., Katsis, F., Witters, L. A., and Kemp, B. E. (1994) J. Biol. Chem. 269, 2361-2364
2. Woods, A.; Cheung, P. C. F.; Smith, F. C.; Davison, M. D.; Scott, J.; Beri, R. K.; Carling, D.: J. Biol. Chem. 271: 10282-10290, 1996.
3. Carling, D., Clarke, P. R., Zammit, V. A., and Hardie, D. G. (1989) Eur. J. Biochem. 186, 129-136
4. Thornton, C.; Snowden, M. A.; Carling, D.: J. Biol. Chem. 273: 12443-12450, 1998.
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