K+ channels are divided into three subclasses reflecting the number of transmembrane segments (TMS), which are designated 6TMS, 4TMS and 2TMS. Members of the 4TMS class contain two distinct pore regions and include TWIK, TREK, TRAAK and TASK. TASK channels are highly sensitive to external pH in the physiological range. TASK-1 is expressed in brain and in rat heart, with high levels of expression in the right atrium. TASK-2, mainly expressed in kidney, is localized in cortical distal tubules and collecting ducts, suggesting a role in renal K+ transport. TASK-3 from rat cerebellum shares 54% identity with TASK-1, but less than 30% identity with TASK-2 and other tandem pore K+ channels.
StressMarq Biosciences Inc. 在2007年成立于加拿大維多利亞,是一家生物科技公司,專(zhuān)門(mén)從事試劑與試劑盒研究,服務(wù)范圍遍及全187多個(gè)國(guó)家。 StressMarq公司的核心技術(shù)領(lǐng)域?yàn)榧?xì)胞應(yīng)激(尤其是熱休克蛋白(HSP)領(lǐng)域,領(lǐng)先全球),離子通道,載體研究,同時(shí)在神經(jīng)科學(xué)領(lǐng)域推出特有的具有生物活性的Tau蛋白與A-突觸核蛋白。產(chǎn)品領(lǐng)域涉及到:細(xì)胞凋亡、細(xì)胞信號(hào)、通路和轉(zhuǎn)運(yùn)、細(xì)胞器標(biāo)志物、熱休克、神經(jīng)生物學(xué)、神經(jīng)科學(xué)、氧化應(yīng)激、磷酸化運(yùn)輸?shù)取3颂峁┯糜谶M(jìn)一步研究的相關(guān)工具外,Str