Ca(2+) release-activated Ca(2+) (CRAC) current, structure, and function.
Ca(2+) release-activated Ca(2+) (CRAC) current, structure, and function.
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DOI:
10.1007/s00018-012-1072-8
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发表时间:
2012-12
影响因子:
8
通讯作者:
Romanin, Christoph
中科院分区:
文献类型:
--
作者:
Muik, Martin;Schindl, Rainer;Fahrner, Marc;Romanin, Christoph
Store-operated Ca2+ entry describes the phenomenon that connects a depletion of internal Ca2+ stores to an activation of plasma membrane-located Ca2+ selective ion channels. Tremendous progress towards the underlying molecular mechanism came with the discovery of the two respective limiting components, STIM and Orai. STIM1 represents the ER-located Ca2+ sensor and transmits the signal of store depletion to the plasma membrane. Here it couples to and activates Orai, the highly Ca2+-selective pore-forming subunit of Ca2+ release-activated Ca2+ channels. In this review, we focus on the molecular steps that these two proteins undergo from store-depletion to their coupling, the activation, and regulation of Ca2+ currents.
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