Structure and Function of Adenosine Receptor Heteromers.
Cellular and Molecular Life Sciences(2021)
摘要
Adenosine is one of the most ancient signaling molecules and has receptors in both animals and plants. In mammals there are four specific receptors, A 1 , A 2A , A 2B , and A 3 , which belong to the superfamily of G-protein-coupled receptors (GPCRs). Evidence accumulated in the last 20 years indicates that GPCRs are often expressed as oligomeric complexes formed by a number of equal (homomers) or different (heteromers) receptors. This review presents the data showing the occurrence of heteromers formed by A 1 and A 2A , A 2A and A 2B , and A 2A and A 3 receptors highlighting (i) their tetrameric structural arrangements, and (ii) the functional diversity that those heteromers provide to adenosinergic signaling.
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关键词
G-protein-coupled receptors GPCRs,Signaling,Signal transduction,Cell surface functional unit
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