pH sensing via bicarbonate-regulated ‘soluble’ adenylyl cyclase (sAC)

Soluble adenylyl cyclase (sAC) is a source of the second messenger cyclic adenosine 3',5' monophosphate (cAMP). sAC is directly regulated by bicarbonate (HCO3-) ions. In living cells, HCO3- ions are in nearly instantaneous equilibrium with carbon dioxide (CO2) and pH due to the ubiqu...

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Main Authors: Nawreen eRahman, Jochen eBuck, Lonny Ray Levin
Format: Article
Language:English
Published: Frontiers Media S.A. 2013-11-01
Series:Frontiers in Physiology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fphys.2013.00343/full
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author Nawreen eRahman
Jochen eBuck
Lonny Ray Levin
author_facet Nawreen eRahman
Jochen eBuck
Lonny Ray Levin
author_sort Nawreen eRahman
collection DOAJ
description Soluble adenylyl cyclase (sAC) is a source of the second messenger cyclic adenosine 3',5' monophosphate (cAMP). sAC is directly regulated by bicarbonate (HCO3-) ions. In living cells, HCO3- ions are in nearly instantaneous equilibrium with carbon dioxide (CO2) and pH due to the ubiquitous presence of carbonic anhydrases. Numerous biological processes are regulated by CO2, HCO3-, and/or pH, and in a number of these, sAC has been shown to function as a physiological CO2/HCO3/pH sensor. In this review, we detail the known pH sensing functions of sAC, and we discuss two highly-studied, pH-dependent pathways in which sAC might play a role.
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spelling doaj.art-4cc2c69859df419f8d45a0d462e9c2352022-12-21T19:06:05ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2013-11-01410.3389/fphys.2013.0034367934pH sensing via bicarbonate-regulated ‘soluble’ adenylyl cyclase (sAC)Nawreen eRahman0Jochen eBuck1Lonny Ray Levin2Weill Cornell Medical CollegeWeill Cornell Medical CollegeWeill Cornell Medical CollegeSoluble adenylyl cyclase (sAC) is a source of the second messenger cyclic adenosine 3',5' monophosphate (cAMP). sAC is directly regulated by bicarbonate (HCO3-) ions. In living cells, HCO3- ions are in nearly instantaneous equilibrium with carbon dioxide (CO2) and pH due to the ubiquitous presence of carbonic anhydrases. Numerous biological processes are regulated by CO2, HCO3-, and/or pH, and in a number of these, sAC has been shown to function as a physiological CO2/HCO3/pH sensor. In this review, we detail the known pH sensing functions of sAC, and we discuss two highly-studied, pH-dependent pathways in which sAC might play a role.http://journal.frontiersin.org/Journal/10.3389/fphys.2013.00343/fullCarbonic AnhydrasesCyclic AMPpHbicarbonateSoluble adenylyl cyclase
spellingShingle Nawreen eRahman
Jochen eBuck
Lonny Ray Levin
pH sensing via bicarbonate-regulated ‘soluble’ adenylyl cyclase (sAC)
Frontiers in Physiology
Carbonic Anhydrases
Cyclic AMP
pH
bicarbonate
Soluble adenylyl cyclase
title pH sensing via bicarbonate-regulated ‘soluble’ adenylyl cyclase (sAC)
title_full pH sensing via bicarbonate-regulated ‘soluble’ adenylyl cyclase (sAC)
title_fullStr pH sensing via bicarbonate-regulated ‘soluble’ adenylyl cyclase (sAC)
title_full_unstemmed pH sensing via bicarbonate-regulated ‘soluble’ adenylyl cyclase (sAC)
title_short pH sensing via bicarbonate-regulated ‘soluble’ adenylyl cyclase (sAC)
title_sort ph sensing via bicarbonate regulated soluble adenylyl cyclase sac
topic Carbonic Anhydrases
Cyclic AMP
pH
bicarbonate
Soluble adenylyl cyclase
url http://journal.frontiersin.org/Journal/10.3389/fphys.2013.00343/full
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