Alpha-1-adrenergic receptors (alpha-1-ARs) are members of the G protein-coupled receptor superfamily. They activate mitogenic responses and regulate growth and proliferation of many cells. There are 3 alpha-1-AR subtypes: alpha-1A, -1B and -1D, all of which signal through the Gq/11 family of G-proteins and different subtypes show different patterns of activation. This gene encodes alpha-1A-adrenergic receptor. Alternative splicing of this gene generates four transcript variants, which encode four different isoforms with distinct C-termini but having similar ligand binding properties. [provided by RefSeq, Jul 2008]
Forensic Context
A study in humans analyzing peripheral blood mononuclear cells from coronary artery disease (CAD) patients identified ADRA1A as a top hub gene within a protein-protein interaction network, indicating its central role in CAD pathogenesis [He et al. DOI:10.1155/2021/6658115]. This research, which constructed a competitive endogenous RNA regulatory network, positions ADRA1A as a potential peripheral blood biomarker for the condition, offering novel insights for forensic pathology identification of sudden cardiac death.