STIM and Orai1 variants in store-operated calcium entry

Store-operated Ca2+ is an ubiquitous mechanism for Ca2+ entry in eukaryotic cells. This route for Ca2+ influx is regulated by the filling state of the intracellular Ca2+ stores communicated to the plasma membrane channels by the proteins of the STIM family, STIM1 and STIM2. Store-dependent, STIM1-mo...

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Main Authors: JUAN ANTONIO ROSADO, Raquel eDiez, Tarik eSmani, Isaac eJardin
Format: Article
Language:English
Published: Frontiers Media S.A. 2016-01-01
Series:Frontiers in Pharmacology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fphar.2015.00325/full
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author JUAN ANTONIO ROSADO
Raquel eDiez
Tarik eSmani
Isaac eJardin
author_facet JUAN ANTONIO ROSADO
Raquel eDiez
Tarik eSmani
Isaac eJardin
author_sort JUAN ANTONIO ROSADO
collection DOAJ
description Store-operated Ca2+ is an ubiquitous mechanism for Ca2+ entry in eukaryotic cells. This route for Ca2+ influx is regulated by the filling state of the intracellular Ca2+ stores communicated to the plasma membrane channels by the proteins of the STIM family, STIM1 and STIM2. Store-dependent, STIM1-modulated, channels include the Ca2+ release-activated Ca2+ (CRAC) channels, comprised of subunits of Orai proteins, as well as the store-operated Ca2+ (SOC) channels, involving Orai1 and members of the canonical transient receptor potential (TRPC) family of proteins. Recent studies have revealed the expression of splice variants of STIM1, STIM2 and Orai1 in different cell types. While certain variants are ubiquitously expressed, others, such as STIM1L, show a more restricted expression. The splice variants for STIM and Orai1 proteins exhibit significant functional differences and reveal that alternative splicing enhances the functional diversity of STIM1, STIM2 and Orai1 genes to modulate the dynamics of Ca2+ signals.
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spelling doaj.art-28a4ec16c92b475d952714b11787ee892022-12-22T03:21:00ZengFrontiers Media S.A.Frontiers in Pharmacology1663-98122016-01-01610.3389/fphar.2015.00325180371STIM and Orai1 variants in store-operated calcium entryJUAN ANTONIO ROSADO0Raquel eDiez1Tarik eSmani2Isaac eJardin3University of ExtremaduraUniversity of ExtremaduraUniversity of SevilleUniversity of ExtremaduraStore-operated Ca2+ is an ubiquitous mechanism for Ca2+ entry in eukaryotic cells. This route for Ca2+ influx is regulated by the filling state of the intracellular Ca2+ stores communicated to the plasma membrane channels by the proteins of the STIM family, STIM1 and STIM2. Store-dependent, STIM1-modulated, channels include the Ca2+ release-activated Ca2+ (CRAC) channels, comprised of subunits of Orai proteins, as well as the store-operated Ca2+ (SOC) channels, involving Orai1 and members of the canonical transient receptor potential (TRPC) family of proteins. Recent studies have revealed the expression of splice variants of STIM1, STIM2 and Orai1 in different cell types. While certain variants are ubiquitously expressed, others, such as STIM1L, show a more restricted expression. The splice variants for STIM and Orai1 proteins exhibit significant functional differences and reveal that alternative splicing enhances the functional diversity of STIM1, STIM2 and Orai1 genes to modulate the dynamics of Ca2+ signals.http://journal.frontiersin.org/Journal/10.3389/fphar.2015.00325/fullOrai1STIM1STIM2Calcium entrysplice variants.
spellingShingle JUAN ANTONIO ROSADO
Raquel eDiez
Tarik eSmani
Isaac eJardin
STIM and Orai1 variants in store-operated calcium entry
Frontiers in Pharmacology
Orai1
STIM1
STIM2
Calcium entry
splice variants.
title STIM and Orai1 variants in store-operated calcium entry
title_full STIM and Orai1 variants in store-operated calcium entry
title_fullStr STIM and Orai1 variants in store-operated calcium entry
title_full_unstemmed STIM and Orai1 variants in store-operated calcium entry
title_short STIM and Orai1 variants in store-operated calcium entry
title_sort stim and orai1 variants in store operated calcium entry
topic Orai1
STIM1
STIM2
Calcium entry
splice variants.
url http://journal.frontiersin.org/Journal/10.3389/fphar.2015.00325/full
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AT raquelediez stimandorai1variantsinstoreoperatedcalciumentry
AT tarikesmani stimandorai1variantsinstoreoperatedcalciumentry
AT isaacejardin stimandorai1variantsinstoreoperatedcalciumentry