Other , smaller particles on the thylakoid membranes are atpases 其他的存在于类囊体膜上的小颗粒是atp酶。
In present study , low k + transiently increased the activity of reactive oxygen species ( ros ) in mdck cells 本文研究低钾对钠钾atp酶的作用机理,研究表明活性氧( ros )参与了低钾的调节作用。
Both of them are localized within the endoplasmic reticulum ( er ) and possess atp - binding sites . envidence has shown that grps function as molecular chaperones by assisting in the proper folding and assembly of proteins within the er 同时他们又是分布在内质网( endoplasmicreticulumer )腔内的分子伴侣,具有弱的atp酶活性,与atp结合后可以协助新生蛋白质的转位、折叠以及寡聚蛋白的组装。
The contents of mda of the cbs was 1 . 06 , 1 . 14 , 1 . 22 , 1 . 26 , 1 . 25 times those of the control respectively . the level of 02 in the cbs reached the highest degree at 6h after cold stress , and began to decrease but still higher than that of the control 25倍;其0 。水平低温胁迫6h时达最高, 12h时下降,但随低温胁迫时间的延长,其水平又逐渐升高并高出对照组较多。在同样条件处理下,草鱼zc 7901细胞的atp酶活力分别为对照组的0
Inhibition of ros activity by catalase , n - acetylcysteine or diphenylene iodonium abrogated low k + - induced increases in the - subunit promoter activity , 1 - and 1 - subunit polypeptide abundance , and binding sites of na , k - atpase , indicating the role of ros in the effect of low k + 抗氧化剂nac与catalase 、 dpi能抑制低钾的作用。提示ros产生与细胞膜nadph氧化酶有关。进一步研究表明, h2o2 ,而非超氧根离子参与了低钾对钠钾atp酶的调节。
Extension of low k + treatment to 12 hours did not increase the binding sites or protein abundance either . among ros species , h2o2 was specifically involved in the up - regulation of na , k - atpase induced by low k . 96 base pairs of upstream of na , k - atpase subunit promoter was the key cis - element in transcriptional regulation of promoter activity Ros对钠钾atp酶亚基启动子的刺激作用缩小至编码区上游96碱基对,该序列包含多个潜在sp1转录因子结合位点,研究也表明sp1参与了低钾对钠钾atp酶的调节作用。
At the cadmium concentration of 2 . 19mg / l and 4 . 37mg / l , for 72h , the na + - k + - atpase activity of kidney tissues were decreased very significantly . the higher of the concentration of cadmium or the longer of the exposure the more the enzymic activity was decreased . the na + - k + - atpase activity of gill tissues were decreased but not significantly at the low concentratioin of cadmium 对na ~ + - k锅离子对草鱼鱼种组织sod和atpase的影响及毒性研究atp酶的活性测定表明,与对照组相比, cd 》对草鱼鱼种鳃和肾的na k atp酶活性均有抑制作用,这种抑制作用随着暴露时间的延长而加强。
The basic function of the na , k - atpase is to maintain the high na and k gradients across the plasma membrane of animal cells . it has an important role in regulating the cell volumn , cytoplasmic ph and ca2 + levels through the na + / h + and na / ca exchangers , respectively , and in driving a variety of secondary transport processes such as na + - dependent glucose and amide acid transport 钠钾atp酶是维持生物体功能的最基本的酶之一,它通过形成细胞内外钠钾离子的浓度递度来维持细胞膜静息电位、渗透压的稳定、营养物质的主动运输与吸收等多种生理功能。