Essential requirement for two-pore channel 1 in NAADP-mediated calcium signaling.

Essential requirement for two-pore channel 1 in NAADP-mediated calcium signaling.
复制标题

DOI:
10.1083/jcb.200904073
复制
发表时间:
2009-07-27
期刊:
The Journal of cell biology
影响因子:
--
通讯作者:
Patel S
Patel S
中科院分区:
其他
文献类型:
--
作者:
Brailoiu E;Churamani D;Cai X;Schrlau MG;Brailoiu GC;Gao X;Hooper R;Boulware MJ;Dun NJ;Marchant JS;Patel S

文献摘要

参考文献

被引文献

相似文献

烟酸腺嘌呤二核苷酸磷酸(NAADP)是一种广泛而有效的钙动员信使,在激活位于酸性储存的钙通道方面非常罕见。然而,靶蛋白的分子身份尚不清楚。在这项研究中,我们表明,以前未知的人类双孔通道(TPC 1和TPC 2)是内溶酶体蛋白,NAADP介导的钙信号增强过表达的TPC 1和减弱后敲低TPC 1,和一个高度保守的残基内的一个假定的孔区域的突变废除钙释放NAADP。因此,TPC 1对于NAADP作用至关重要,并且可能是NAADP长期寻求的目标通道。
Nicotinic acid adenine dinucleotide phosphate (NAADP) is a widespread and potent calcium-mobilizing messenger that is highly unusual in activating calcium channels located on acidic stores. However, the molecular identity of the target protein is unclear. In this study, we show that the previously uncharacterized human two-pore channels (TPC1 and TPC2) are endolysosomal proteins, that NAADP-mediated calcium signals are enhanced by overexpression of TPC1 and attenuated after knockdown of TPC1, and that mutation of a single highly conserved residue within a putative pore region abrogated calcium release by NAADP. Thus, TPC1 is critical for NAADP action and is likely the long sought after target channel for NAADP.
DOI: 10.1002/jcp.21407
发表时间: 2008-08-01
影响因子: 5.6
作者:
Gambara, Guido;Billington, Richard A.;Filippini, Antonio
通讯作者: Filippini, Antonio
DOI: 10.1074/jbc.m406132200
发表时间: 2004-12-24
影响因子: 4.8
作者:
Kinnear, NP;Boittin, FX;Evans, AM
通讯作者: Evans, AM
DOI: 10.1074/jbc.m203224200
发表时间: 2002-11-15
影响因子: 4.8
作者:
Berridge, G;Dickinson, G;Patel, S
通讯作者: Patel, S
DOI: 10.1016/s0960-9822(03)00002-2
发表时间: 2003-01-21
期刊: CURRENT BIOLOGY
影响因子: 9.2
作者:
Churchill, GC;O'Neill, JS;Galione, A
通讯作者: Galione, A
DOI: 10.1074/jbc.270.5.2152
发表时间: 1995-02-03
影响因子: 4.8
作者:
LEE, HC;AARHUS, R
通讯作者: AARHUS, R