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鬼筆環(huán)肽-熒光素標(biāo)記

鬼筆環(huán)肽-熒光素標(biāo)記
貨號(hào):23101
規(guī)格:300 Tests
價(jià)格:1944
品牌:AAT Bioquest

鬼筆環(huán)肽-熒光素標(biāo)記

貨號(hào)23101存儲(chǔ)條件在零下15度以下保存, 避免光照
規(guī)格300 Tests價(jià)格1944
Ex (nm)498Em (nm)517
分子量~1100溶劑DMSO
產(chǎn)品詳細(xì)介紹


簡(jiǎn)要概述

產(chǎn)品外觀(guān)形態(tài):液體(注:鬼筆環(huán)肽系列產(chǎn)品有固體和液體兩種,液體為DMSO溶解后的產(chǎn)品,則不需再溶解。)

這種綠色熒光鬼筆環(huán)肽綴合物(相當(dāng)于FITC標(biāo)記的鬼筆環(huán)肽)會(huì)選擇性結(jié)合F-肌動(dòng)蛋白。鬼筆環(huán)肽衍生物經(jīng)常以納摩爾濃度使用,常在甲醛固定和透化的組織切片、細(xì)胞培養(yǎng)或無(wú)細(xì)胞實(shí)驗(yàn)中用于標(biāo)記、鑒定和定量F-肌動(dòng)蛋白的便捷探針。鬼筆環(huán)肽與肌動(dòng)蛋白絲的結(jié)合比與肌動(dòng)蛋白單體的結(jié)合要緊密得多,從而導(dǎo)致肌動(dòng)蛋白亞基從絲端解離的速率常數(shù)降低,從而通過(guò)防止絲解聚而基本穩(wěn)定了肌動(dòng)蛋白絲。而且,發(fā)現(xiàn)鬼筆環(huán)肽抑制F-肌動(dòng)蛋白的ATP水解活性。鬼筆環(huán)肽在細(xì)胞中不同濃度下的功能不同。當(dāng)以低濃度引入細(xì)胞質(zhì)時(shí),鬼筆環(huán)肽將聚合度較低的胞質(zhì)肌動(dòng)蛋白和纖維蛋白吸收到聚集的肌動(dòng)蛋白聚合物的穩(wěn)定“島”中,但它不會(huì)干擾應(yīng)力纖維,即厚的微絲束。鬼筆環(huán)肽的性質(zhì)是研究F-肌動(dòng)蛋白在細(xì)胞中分布的有效工具,方法是用熒光類(lèi)似物標(biāo)記鬼筆環(huán)肽并將其用于染色肌動(dòng)蛋白絲以進(jìn)行光學(xué)顯微鏡觀(guān)察。鬼筆環(huán)肽的熒光衍生物已被證明在定位活細(xì)胞或固定細(xì)胞中的肌動(dòng)蛋白絲以及體外觀(guān)察單個(gè)肌動(dòng)蛋白絲方面非常有用。熒光鬼筆環(huán)肽衍生物已被用作高分辨率研究肌動(dòng)蛋白網(wǎng)絡(luò)的重要工具。鬼筆環(huán)肽-熒光素標(biāo)記探針是AAT Bioquest為多色成像應(yīng)用提供的一種熒光鬼筆環(huán)肽衍生物

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產(chǎn)品說(shuō)明書(shū)

樣品分析方案

概述

在微孔板孔中制備樣品

從板中的樣品中取出液體

添加鬼筆環(huán)肽-熒光素標(biāo)記溶液(100μL/孔)

在室溫下染色細(xì)胞20至90分鐘

清洗細(xì)胞在顯微鏡下觀(guān)察樣品

注意:將小瓶加熱至室溫并在打開(kāi)前短暫離心。

 

操作步驟

1.將 1 μL 的鬼筆環(huán)肽-熒光素綴合物溶液添加到 1 mL 含 1% BSA的PBS 中。

注意1:鬼筆環(huán)肽綴合物未使用的儲(chǔ)備溶液應(yīng)等分并儲(chǔ)存在-20℃,避光。

注意2:不同的細(xì)胞類(lèi)型可能染色不同。鬼筆環(huán)肽綴合物工作溶液的濃度的制備需要根據(jù)實(shí)際而定。

2.染色細(xì)胞:

2.1執(zhí)行甲醛固定,在室溫下將含3.0-4.0%甲醛的細(xì)胞在PBS中孵育10-30分鐘。

注意:避免使用任何含甲醇的固定劑,因?yàn)榧状紩?huì)在固定過(guò)程中破壞肌動(dòng)蛋白。 優(yōu)選的固定劑是不含甲醇的甲醛。

2.2用PBS沖洗固定細(xì)胞2-3次。

2.3可選:在PBS中加入0.1%Triton X-100固定細(xì)胞(步驟2.2)3至5分鐘,以增加滲透性。 用PBS沖洗細(xì)胞2-3次。

2.4將100μL/孔(96孔板)鬼筆環(huán)肽綴合物工作溶液(來(lái)自步驟1)加入固定的細(xì)胞中,并在室溫下染色細(xì)胞20至90分鐘。

2.5在加上蓋玻片之前,用PBS輕輕沖洗細(xì)胞2至3次以除去過(guò)量的鬼筆環(huán)肽綴合物,然后在顯微鏡下進(jìn)行,密封和成像。

 

試劑應(yīng)用文獻(xiàn)

Mussel-inspired conductive nanofibrous membranes repair myocardial infarction by enhancing cardiac function and revascularization

Authors: Yutong He, Genlan Ye, Chen Song, Chuangkun Li, Weirong Xiong, Lei Yu, Xiaozhong Qiu, Leyu Wang
Journal: Theranostics. 2018; 8(18): 5159–5177.

 

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Journal: ACS Biomaterials Science & Engineering (2018)

Mussel-inspired conductive nanofibrous membranes repair myocardial infarction by enhancing cardiac function and revascularization
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Biomaterial Surface Can Modify HUVEC Morphology and Inflammatory Response by Regulating MicroRNA Expression
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Cell-Permeable, MMP-2 Activatable, Nickel Ferrite and His-tagged Fusion Protein Self-Assembled Fluorescent Nanoprobe for Tumor Magnetic Targeting and Imaging
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DNA Double-Strand Breaks Induce the Nuclear Actin Filaments Formation in Cumulus-Enclosed Oocytes but Not in Denuded Oocytes
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Enhanced bovine serum albumin absorption on the N-hydroxysuccinimide activated graphene oxide and its corresponding cell affinity
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Enhanced osteointegration of tantalum-modified titanium implants with micro/nano-topography
Authors: Junyu Shi, Xiaomeng Zhang, Shichong Qiao, Jie Ni, Jiaji Mo, Yingxin Gu, Hongchang Lai
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Grafting of Ring-Opened Cyclopropylamine thin films on Silicon (100) Hydride via UV Photoionization
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Microtopography Attenuates Endothelial Cell Proliferation by Regulating MicroRNAs
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Paxillin facilitates timely neurite initiation on soft-substrate environments by interacting with the endocytic machinery
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