Ca2+/H+ exchangeCa2+-ATPaseH+-ATPasePlasma membraneA large number of plant Ca 2+ /H + exchangers have been identified in endomembranes, but far fewer have been studied for Ca 2+ /H + exchange in plasma membrane so far. To investigate the Ca 2+ /H + exchange in plasma membrane here...
然而,细胞内的 Ca2+ 浓度比细胞外环境低 1000 倍,保持这一比例对细胞的正常功能至关重要。钠钙交换体(Na+/Ca2+ Exchangers,NCX)是一种Na+/Ca2+交换器,负责细胞中大部分Ca2+的外流1-3。NCX 转运蛋白是溶质载体 SLC8 家族的成员,而 SLC8 家族又属于 CaCA(Cation-Coupled Antiporter)超家族1,4,5。 NCX...
NCX-1 是三种Na+/Ca2+交换器（NCX-1、NCX-2、NCX-3）之一，可实施一次 Ca2+ 跨质膜移动，以交换三次 Na+流入。不过，如果 Na+和 Ca2+ 的浓度发生变化，转运体可以逆转转运方向6。该转运体有九个跨膜结构域以及细胞内的 N 端和 C 端。在跨膜结构域 5 和 6 之间有一个超长的胞内环，称为 f 环...
Ca2+在可兴奋和不可兴奋的细胞中是通用的信号分子。然而,细胞内的 Ca2+ 浓度比细胞外环境低 1000 倍,保持这一比例对细胞的正常功能至关重要。钠钙交换体(Na+/Ca2+ Exchangers,NCX)是一种Na+/Ca2+交换器,负责细胞中大部分Ca2+的外流1-3。NCX 转运蛋白是溶质载体 SLC8 家族的成员,而 SLC8 家族又属于 C...
Plant calcium (Ca2+) gradients, millimolar levels in the vacuole and micromolar levels in the cytoplasm, are regulated in part by high-capacity vacuolar cation/H+ exchangers (CAXs). Several CAX transporters, including CAX1, appear to contain an approximately 40-amino acid N-terminal regulatory ...
In calcium homeostasis in plant cells, Ca(2+)/H(+) exchangers are involved in Ca(2+) compartmentalization into intracellular compartments. Here, we examine the intracellular localization of a rice Ca(2+)/H(+) exchanger, OsCAX1a, fused to a green fluorescent protein and transiently expressed ...
Kim,M.-H. 摘要: The clearance of Ca2+ from nerve terminals is critical for determining the build-up of residual Ca2+ after repetitive presynaptic activity. We found previously that K+-dependent Na+/Ca2+ exchangers (NCKXs) show polarized distributions in axon terminals of supraoptic magno...
Electrophysiological characterization shows that the conserved residues within transmembrane segments 2 and 7, coordinating Na+ and Ca2+ ions in NCX_Mj, play a fundamental role in NCX1.1. Our results suggest a similar architecture between the mammalian and archaebacterial exchangers. 展开 ...
gradients but requires a source of counter-transportable H+ K+-dependent Na+-Ca2+exchangers (NCKXs) play an important role in Ca2+homeostasis in many tissues. NCKX proteins are bi-directional plasma membrane Ca2+-tr... DA Dixon,DH Haynes 被引量: 0发表: 1989年 Crystal structures of the ...
Structure-Function Relationships of K+-dependent Na+/Ca2+ exchangers (NCKX) 来自 国家科技图书文献中心 喜欢 0 阅读量: 22 作者:AH Jalloul,RT Szerencsei,TP Rogasevskaia,PPM Schnetkamp 摘要: K+-dependent Na+/Ca2+ exchanger proteins (NCKX1-5) of the SLC24 gene family play important roles ...