Anti-AMPK beta 1/PRKAB1 Antibody Picoband® Fluoro488 Conjugated

5'-AMP-activated protein kinase subunit beta-1 is an enzyme that in humans is encoded by the PRKAB1 gene. The protein encoded by this gene is a regulatory subunit of the AMP-activated protein kinase (AMPK) . AMPK is a heterotrimer consisting of an alpha catalytic subunit, and non-catalytic beta and gamma subunits. It is an important energy-sensing enzyme that monitors cellular energy status. In response to cellular metabolic stresses, AMPK is activated, and thus phosphorylates and inactivates acetyl-CoA carboxylase (ACC) and beta-hydroxy beta-methylglutaryl-CoA reductase (HMGCR), key enzymes involved in regulating de novo biosynthesis of fatty acid and cholesterol. This subunit may be a positive regulator of AMPK activity. The myristoylation and phosphorylation of this subunit have been shown to affect the enzyme activity and cellular localization of AMPK. This subunit may also serve as an adaptor molecule mediating the association of the AMPK complex.

A synthetic peptide corresponding to a sequence at the N-terminus of human AMPK beta 1, different from the related mouse sequence by one amino acid, and from the related rat sequence by three amino acids.

Cancer Metabolism, Cardiovascular, Energy Transfer Pathways, Fatty Acid Oxidation, Fatty Acids, Integration Of Energy, Integration Of Energy Metabolism, Lipid and Lipoprotein Metabolism, Lipid Metabolism, Lipid Signaling, Lipids/Lipoproteins, Metabolic Signaling Pathway, Metabolic Signaling Pathways, Metabolism, Pathways and Processes, Redox Metabolism, Signal Transduction, Signaling Pathway

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 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 inly 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) .

1. Entrez Gene: PRKAB1 protein kinase, AMP-activated, beta 1 non-catalytic subunit. 2. Stapleton D, Mitchelhill KI, Gao G, Widmer J, Michell BJ, Teh T, House CM, Fernandez CS, Cox T, Witters LA, Kemp BE (February 1996) . Mammalian AMP-activated protein kinase subfamily. J Biol Chem 271 (2) : 611–4.