Fluo-5N,五钾盐,细胞不可透过性
Fluo-5N,五钾盐,细胞不可透过性
Invitrogen™

Fluo-5N,五钾盐,细胞不可透过性

标记钙指示剂是结合 Ca2+ 离子后荧光强度增加的分子。Fluo-5F、fluo-5N 和 fluo-4ff 是 Ca2+ 结合亲和力较低的了解更多信息
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货号数量
F14203
又称 F-14203
500 μg
货号 F14203
又称 F-14203
价格(CNY)
5,091.00
Each
添加至购物车
数量:
500 μg
价格(CNY)
5,091.00
Each
添加至购物车
标记钙指示剂是结合 Ca2+ 离子后荧光强度增加的分子。Fluo-5F、fluo-5N 和 fluo-4ff 是 Ca2+ 结合亲和力较低的 fluo-4 类似物,这使其适合检测 1 µM 至 1 mM 范围内的细胞内钙离子水平,而这个范围会使 fluo-3 和 fluo-4 的响应达到饱和。可以使用膜片移液管或显微注射或我们的 Influx™ 胞饮细胞上样试剂,以物理方式将细胞不可透过性盐形式的这些指示剂上样至细胞中。这些指示剂与氩离子激光源在 488 nm 处的激发兼容,这使其适用于共聚焦显微镜、流式细胞分析和微孔板筛选应用。

了解关于离子指示剂(包括钙、钾、pH 和膜电位指示剂)的更多信息 ›

钙指示剂(细胞不透性盐)规格:
• 标签(Ca2+–结合形式的 Ex/Em):Fluo-5N (494/516 nm)
• 结合 Ca2+ 后荧光强度增加:>100 倍
• 在缓冲液中与 Ca2+ 结合的 Kd:∼90 µM
• 在结合 Ca2+ 之后荧光强度增加,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(诸如此类)可结合多种重金属阳离子(例如 Mn2+、Zn2+、Pb2+),且亲和力显著高于 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)共聚焦显微镜, 荧光显微镜, 高内涵分析仪, HTS 读数仪, 微孔板读数仪, 荧光成像仪
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 (7)

引用和文献
Abstract
Rational design of protein-based MRI contrast agents.
Authors:Yang JJ, Yang J, Wei L, Zurkiya O, Yang W, Li S, Zou J, Zhou Y, Maniccia AL, Mao H, Zhao F, Malchow R, Zhao S, Johnson J, Hu X, Krogstad E, Liu ZR,
Journal:J Am Chem Soc
PubMed ID:18576649
We describe the rational design of a novel class of magnetic resonance imaging (MRI) contrast agents with engineered proteins (CAi.CD2, i = 1, 2,..., 9) chelated with gadolinium. The design of protein-based contrast agents involves creating high-coordination Gd(3+) binding sites in a stable host protein using amino acid residues and ... More
Concurrent maturation of inner hair cell synaptic Ca2+ influx and auditory nerve spontaneous activity around hearing onset in mice.
Authors:Wong AB, Jing Z, Rutherford MA, Frank T, Strenzke N, Moser T,
Journal:
PubMed ID:23804089
Hearing over a wide range of sound intensities is thought to require complementary coding by functionally diverse spiral ganglion neurons (SGNs), each changing activity only over a subrange. The foundations of SGN diversity are not well understood but likely include differences among their inputs: the presynaptic active zones (AZs) of ... 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
Tuning of synapse number, structure and function in the cochlea.
Authors:Meyer AC, Frank T, Khimich D, Hoch G, Riedel D, Chapochnikov NM, Yarin YM, Harke B, Hell SW, Egner A, Moser T,
Journal:Nat Neurosci
PubMed ID:19270686
Cochlear inner hair cells (IHCs) transmit acoustic information to spiral ganglion neurons through ribbon synapses. Here we have used morphological and physiological techniques to ask whether synaptic mechanisms differ along the tonotopic axis and within IHCs in the mouse cochlea. We show that the number of ribbon synapses per IHC ... More
Confocal imaging of CICR events from isolated and immobilized SR vesicles.
Authors:Shannon TR, Bers DM, Blatter LA, Niggli E
Journal:Cell Calcium
PubMed ID:16122794
The Ca2+ concentration inside the sarcoplasmic reticulum ([Ca2+]SR) is a difficult parameter to measure in ventricular cardiac myocytes. Interference from Ca2+-sensitive dye loading into cellular compartments other than the SR interferes with free Ca2+ measurement. In addition, the composition of the cytosol surrounding the SR in intact cells cannot be ... More