AMPK antibody, HAMPKb antibody, 1300015D22Rik antibody, AU021155 antibody, E430008F22 antibody, MGC82489 antibody, prkab1 antibody, wu:fk93d05 antibody, wu:fw87e09 antibody, zgc:56652 antibody, zgc:76975 antibody, zgc:92228 antibody, protein kinase AMP-activated non-catalytic subunit beta 1 antibody, protein kinase, AMP-activated, beta 1 non-catalytic subunit antibody, protein kinase, AMP-activated, beta 1 non-catalytic subunit S homeolog antibody, protein kinase, AMP-activated, beta 1 non-catalytic subunit, b antibody, protein kinase, AMP-activated, beta 1 non-catalytic subunit, a antibody, PRKAB1 antibody, Prkab1 antibody, prkab1.S antibody, prkab1 antibody, prkab1b antibody, prkab1a antibody
Background
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).