Rhod-5N,三钾盐,非细胞通透性
Rhod-5N,三钾盐,非细胞通透性
Invitrogen™

Rhod-5N,三钾盐,非细胞通透性

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
R14207500 μg
货号 R14207
价格(CNY)
3,451.00
飞享价
Ends: 31-Dec-2025
4,526.00
共减 1,075.00 (24%)
Each
添加至购物车
数量:
500 μg
价格(CNY)
3,451.00
飞享价
Ends: 31-Dec-2025
4,526.00
共减 1,075.00 (24%)
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-5N (551/576 nm)
• 结合 Ca2+ 后荧光强度增加:>100 倍
•缓冲液中无 Mg2+ 时 Ca2+ 的 Kd:∼320 µM
• 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
另外,基于 BAPTA 的指示剂可结合各种重金属阳离子(例如 Mn2+、Zn2+、Pb2+),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500 μg
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 (9)

引用和文献
Abstract
Patch-clamp detection of macromolecular translocation along nuclear pores.
Authors:Bustamante JO, Varanda WA
Journal:Braz J Med Biol Res
PubMed ID:9698781
'The present paper reviews the application of patch-clamp principles to the detection and measurement of macromolecular translocation along the nuclear pores. We demonstrate that the tight-seal ''gigaseal'' between the pipette tip and the nuclear membrane is possible in the presence of fully operational nuclear pores. We show that the ability ... More
Extracellular Ca2+ depletion contributes to fast activity-dependent modulation of synaptic transmission in the brain.
Authors:Rusakov DA, Fine A
Journal:Neuron
PubMed ID:12546823
'Synaptic activation is associated with rapid changes in intracellular Ca(2+), while the extracellular Ca(2+) level is generally assumed to be constant. Here, using a novel optical method to measure changes in extracellular Ca(2+) at high spatial and temporal resolution, we find that brief trains of synaptic transmission in hippocampal area ... More
Rhod-5N as a fluorescent molecular sensor of cadmium(II) ion.
Authors:Soibinet M, Souchon V, Leray I, Valeur B,
Journal:J Fluoresc
PubMed ID:18488146
The photophysical and complexing properties of Rhod-5N (commercially available) in MOPS buffer are reported. This fluorescent molecular sensor consists of a BAPTA chelating moiety bound to a rhodamine fluorophore. Its fluorescence quantum yield is low and a drastic enhancement of fluorescence intensity upon cation binding was observed. Special attention was ... More
Measurement of limestone biodeterioration using the Ca2+ binding fluorochrome Rhod-5N.
Authors:McNamara CJ, Perry TD, Bearce K, Hernandez-Duque G, Mitchell R
Journal:J Microbiol Methods
PubMed ID:15722151
Limestone and marble have been used extensively in the construction of modern and historic buildings. Microbial colonization and growth on these stone structures is common. Microbial deterioration of stone has been assessed by measuring Ca2+ released from the stone, using ion selective electrodes and titration with EDTA. In this study, ... More
Low-affinity Ca2+ indicators compared in measurements of skeletal muscle Ca2+ transients.
Authors:Hollingworth S, Gee KR, Baylor SM,
Journal:Biophys J
PubMed ID:19804716
The low-affinity fluorescent Ca(2+) indicators OGB-5N, Fluo-5N, fura-5N, Rhod-5N, and Mag-fluo-4 were evaluated for their ability to accurately track the kinetics of the spatially averaged free Ca(2+) transient (Delta[Ca(2+)]) in skeletal muscle. Frog single fibers were injected with one of the above indicators and, usually, furaptra (previously shown to rapidly ... More