PGC1α/β Recombinant Rabbit mAb

PGC1α (PPARγ coactivator 1α) and PGC1β are two core members of the transcriptional coactivator family. They lack intrinsic DNA-binding ability but potently enhance the transcriptional activity of target genes by interacting with various transcription factors (such as PPARγ, NRF1, and ERRα), thereby acting as "master switches" in the global regulation of energy metabolism. PGC1α is highly expressed in tissues with high energy demands, including brown adipose tissue, skeletal muscle, heart, and liver, and is significantly induced particularly upon cold exposure or exercise stimulation, potently driving mitochondrial biogenesis (via activation of the NRF1/GABPA→TFAM pathway), fatty acid oxidation, and thermogenic uncoupling (via induction of UCP1). In contrast, PGC1β maintains mitochondrial function and lipid metabolism under basal conditions, with relatively stable expression and weaker responses to acute stimuli. Although both proteins possess an N-terminal transcriptional activation domain required for activating transcription and a C-terminal RNA recognition motif for binding transcription factors, they exhibit functional complementarity and division of labor: PGC1α tends to regulate oxidative muscle fiber formation and adaptive thermogenesis, while PGC1β is more involved in VLDL synthesis and cholesterol metabolism. Dysregulation of the expression or activity of these two coactivators is closely associated with various metabolic diseases—decline in PGC1α is linked to the pathogenesis of insulin resistance and type 2 diabetes, while abnormalities in PGC1β are associated with non-alcoholic fatty liver disease and hyperlipidemia—making them important potential targets for the development of metabolic disease therapeutics.