Multifaceted roles of STIM proteins.

Multifaceted roles of STIM proteins.
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DOI:
10.1007/s00424-013-1270-8
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发表时间:
2013-10
影响因子:
4.5
通讯作者:
Soboloff, Jonathan
Soboloff, Jonathan
中科院分区:
医学3区
文献类型:
--
作者:
Hooper, Robert;Samakai, Elsie;Kedra, Joseph;Soboloff, Jonathan

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基质相互作用分子(STIM 1和STIM 2)是钙库操纵的钙内流(SOCE)的关键组分。STIM检测到ER Ca 2+库的耗竭,与质膜奥赖通道偶联,导致Ca 2+穿过PM流入胞质溶胶。虽然最好的认识,他们的主要作用ER Ca2+传感器,越来越多的证据表明,STIM蛋白具有更广泛的各种感觉能力比第一次设想,反应细胞应激源,如氧化应激,温度和缺氧。此外,STIM蛋白的伴侣阵列现在被理解为远远超出奥赖通道家族。在这里,我们讨论了STIM的扩大作用的影响,无论是作为一个压力传感器和细胞中的多个生理过程的一般调制器。
Stromal interaction molecules (STIM1 and STIM2) are critical components of store-operated calcium entry (SOCE). Sensing depletion of ER Ca2+ stores, STIM couples with plasma membrane Orai channels, resulting in the influx of Ca2+ across the PM into the cytosol. Although best recognized for their primary role as ER Ca2+ sensors, increasing evidence suggests STIM proteins have a broader variety of sensory capabilities than first envisaged, reacting to cell stressors such as oxidative stress, temperature and hypoxia. Further, the array of partners for STIM proteins is now understood to range far beyond the Orai channel family. Here we discuss the implications of STIM’s expanding role, both as a stress sensor and a general modulator of multiple physiological processes in the cell.
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