Rhod-2,三钾盐,非细胞透性
Rhod-2,三钾盐,非细胞透性
Invitrogen™

Rhod-2,三钾盐,非细胞透性

标记的钙指示剂是结合 Ca2+ 后显示荧光增加的分子。它们可用于多种钙信号传导研究,包括自发荧光水平很高的细胞和组织中 Ca2+ 的测定以及光感受器和光活化螯合剂产生的 Ca2+ 释放的检测。可以使用膜片吸管、显微注射或了解更多信息
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货号数量
R14220
又称 R-14220
1 mg
货号 R14220
又称 R-14220
价格(CNY)
6,630.00
Each
添加至购物车
数量:
1 mg
价格(CNY)
6,630.00
Each
添加至购物车
标记的钙指示剂是结合 Ca2+ 后显示荧光增加的分子。它们可用于多种钙信号传导研究,包括自发荧光水平很高的细胞和组织中 Ca2+ 的测定以及光感受器和光活化螯合剂产生的 Ca2+ 释放的检测。可以使用膜片吸管、显微注射或 Influx™ 细胞胞饮上样试剂等物理学方法将这些指示剂的非细胞通透性盐形式加载到细胞中。这些细胞的荧光信号通常是通过荧光显微镜检测。

了了解有关钙离子、钾离子、pH 和膜电位指示剂等离子指示剂更多信息›

钙指示剂(细胞不可透过性盐)规格:
• 标记(Ca2+–结合型的 激发/发射波长):Rhod-2 (552/581 nm)
• 结合 Ca2+ 后荧光强度增加:>100 倍
•缓冲液中无 Mg2+ 时 Ca2+ 的 Kd:∼570 nM
• 结合 Ca2+ 后,荧光增加,波长稍有变化


使用 TPEN 控制重金属阳离子
此外,基于 BAPTA 的指示剂可结合各种重金属阳离子(例如 Mn2+、Zn2+、Pb+2),亲和力远高于 Ca2+。可以使用重金属选择性螯合剂 TPEN 来控制由这些离子引起的钙测量值扰动。

荧光钙指示剂的更多选择
我们提供大量的 Molecular Probes™ 钙指示剂供各种实验场景选择使用。更多信息请参阅《Molecular Probes™ 手册》中的可见光激发的荧光 Ca2+ 指示剂—第 19.3 节

对于 UV 激发的 Ca2+ 指示剂、基于蛋白的 Ca2+ 指示剂、Ca2+ 指示剂的偶联物以及其他金属离子(即 Mg2+、Zn2+)的荧光指示剂,请查看 Molecular Probes™ 手册中的 Ca2+、Mg2+、Zn2+ 以及其他金属离子指示剂—第 19 章

仅供科研使用。不可用于人或动物的治疗或诊断。
仅供科研使用。不可用于诊断程序。
规格
检测方法荧光
染料类型基于荧光染料
数量1 mg
运输条件室温
适用于(设备)荧光显微镜
产品类型钙指示剂
Unit SizeEach
内容与储存
在冷冻冰箱(-5°C 至 -30°C)中避光储存。

引用和文献 (37)

引用和文献
Abstract
Caffeine inhibits inositol trisphosphate-mediated liberation of intracellular calcium in Xenopus oocytes.
Authors:Parker I, Ivorra I
Journal:J Physiol
PubMed ID:1844813
'1. Voltage-clamp recording of Ca(2+)-activated chloride currents in Xenopus oocytes was used to study the effects of caffeine on the liberation of intracellular Ca2+ induced by photo-release of inositol 1,4,5-trisphosphate (InsP3) from caged InsP3. Bath application of caffeine, at concentrations between 0.1 and 10 mM, reduced or abolished the current ... More
Cyclic ADP-ribose and calcium-induced calcium release regulate neurotransmitter release at a cholinergic synapse of Aplysia.
Authors:Mothet JP, Fossier P, Meunier FM, Stinnakre J, Tauc L, Baux G
Journal:J Physiol
PubMed ID:9518701
'1. Presynaptic injection of cyclic ADP-ribose (cADPR), a modulator of the ryanodine receptor, increased the postsynaptic response evoked by a presynaptic spike at an identified cholinergic synapse in the buccal ganglion of Aplysia californica. 2. The statistical analysis of long duration postsynaptic responses evoked by square depolarizations of the voltage-clamped ... More
Calcium permeability of the neuronal nuclear envelope: evaluation using confocal volumes and intracellular perfusion.
Authors:O'Malley DM
Journal:J Neurosci
PubMed ID:7931542
'In many calcium-imaging studies, the nuclear envelope appears to maintain a gradient of free calcium between the nucleus and cytosol. This issue was examined by loading amphibian sympathetic neurons with the calcium indicator fluo 3 via whole-cell patch clamping. Confocal optical sectioning allowed acquisition of independent calibration curves for the ... More
Imaging of calcium transients in skeletal muscle fibers.
Authors:Vergara J, DiFranco M, Compagnon D, Suarez-Isla BA
Journal:Biophys J
PubMed ID:2015378
'Epifluorescence images of Ca2+ transients elicited by electrical stimulation of single skeletal muscle fibers were studied with fast imaging techniques that take advantage of the large fluorescence signals emitted at relatively long wavelengths by the dyes fluo-3 and rhod-2 in response to binding of Ca2+ ions, and of the suitable ... More
The membrane guanylyl cyclase, retinal guanylyl cyclase-1, is activated through its intracellular domain.
Authors:Laura RP, Dizhoor AM, Hurley JB
Journal:J Biol Chem
PubMed ID:8662612
'Retinal guanylyl cyclase-1 (RetGC-1) is a membrane guanylyl cyclase found in photoreceptor outer segments. It consists of an apparent extracellular domain (ECD) linked by a single transmembrane segment to an intracellular domain (ICD). Guanylyl cyclase activating protein-2 (GCAP-2) is a Ca2+-binding protein that activates RetGC-1 in a Ca2+-sensitive manner. To ... More