科普篇-用于标记蛋白和抗体的荧光染料选择要点!
西安齐岳生物提供的荧光染料的吸收波长和发射波长从300nm-810nm不等,同时提供在不同的荧光染料上面做活性基团,比如carboxy,NHS-ester ,maleimide,streptavidin,Biotin,phalloidin,amine,azide,iodoacetamide,alkyne等等。关于荧光染料我们可以提供FITC、Rhodamine、Bodipy系列染料、Coumairn 染料、Dansyl染料、FAM/5-TAMRA、NBD、CY系列、ICG及IR系列、ATTO系列染料、AMCA、Perylene、碘化物、DIR/DIL/DIO/DID/DAPI细胞膜染料、ROX参比染料等等。
荧光染料的选择要点:当选择荧光基团时,每个实验都应考虑每个荧光基团的激发和发射光谱。如果需要共同定位两种不同的蛋白质,应避免发射光谱重叠。
光漂白是降低荧光信号强度的光化学过程,例如已知FITC和R-藻红蛋白具有相对较高的光漂白率。我们建议避免对光漂白高度的荧光团,一些光稳定荧光团包括DyLightTM、AlexaFluorTM、ATTO染料。或者可以使用光漂白的抗淬灭剂来保存荧光标记的靶分子的信号。
荧光染料标记抗体的分类:
荧光基团的蛋白抗体标记物:如荧光素 (FITC)、四甲基异硫氰酸罗丹明 (TRITC)、Cy3、Cy5、Pacific 和 ATTO染料。
1.FITC:
FITC是广泛使用的荧光基团,但其缺点是淬灭快,使用抗淬灭剂可以减轻。
花青染料(Cy2,Cy3,Cy5):Cy2比FITC更稳定,且在表面荧光显微镜下,Cy2的荧光FITC更强。Cy3和Cy5比大多数荧光基团更亮,更稳定。二者常在共聚焦显微实验中作多标记。但Cy5的缺点是不能用表面荧光显微镜观察,因此通常用具有远红外检测器的共聚焦显微镜观察。
2.TRITC,RRX,TR:
TRITC经常和FITC一起用于双标记实验中,也可以使用RRX或TR,但TR会产生较高的背景。在使用装有氪氢灯的激光共聚焦扫描显微镜作三标记实验时,RRX尤其有用,可以和Cy2(或FITC)及Cy5一起使用,因为RRX的发射波长在Cy2和Cy5中间,且和这两者的重叠很少。
3.PE藻红蛋白:
常和FITC一起用于流式细胞术双标记实验。
4.ATTO染料:
Atto荧光染料可作为一系列生物分子( 如蛋白质和核酸)的荧光标记和分子探针
齐岳生物供应各种染料有:
一、CY系列染料:
Cyanine3 alkyne
Cyanine3 azide
Cyanine3 carboxylic acid 1144107-76-5
Cyanine3 hydrazide
Cyanine3 maleimide
Cyanine3 NHS ester 1032678-38-8
Cyanine3.5 azide
Cyanine3.5 carboxylic acid 1144107-79-8
Cyanine3.5 NHS ester
Cyanine5 alkyne
Cyanine5 amine
Cyanine5 azide
Cyanine5 Boc-hydrazide
Cyanine5 carboxylic acid
Cyanine5 hydrazide
Cyanine5 maleimide
Cyanine5 NHS ester 1032678-42-4
Cyanine5.5 alkyne
Cyanine5.5 azide
Cyanine5.5 carboxylic acid 1144107-80-1
Cyanine5.5 maleimide
Cyanine5.5 NHS ester
Cyanine7 amine 1650635-41-8
Cyanine7 azide
Cyanine7 carboxylic acid
Cyanine7 maleimide
Cyanine7 NHS ester
Cyanine7.5 amine
Cyanine7.5 azide
Cyanine7.5 carboxylic acid 1686147-68-1
Cyanine7.5 maleimide
Cyanine7.5 NHS ester
Sulfo-Cyanine 5 NHS ester
Sulfo-Cyanine3 azide
Sulfo-Cyanine3 carboxylic acid
Sulfo-Cyanine3 maleimide
Sulfo-Cyanine3 NHS ester
Sulfo-Cyanine5 alkyne
Sulfo-Cyanine5 azide
Sulfo-Cyanine5 carboxylic acid 1121756-16-8
Sulfo-Cyanine5 maleimide
Sulfo-Cyanine7 azide
Sulfo-Cyanine7 carboxylic acid
Sulfo-Cyanine7 NHS ester
Cy3 NHS Ester
Cy5 NHS Ester
Cy7 NHS Ester
Sulfo Cy3 NHS ester
Sulfo Cy5 NHS ester
Sulfo Cy7 NHS ester
Cy3 amine
Cy5 amine
Cy7 amine
Sulfo Cy3 amine
Sulfo Cy5 amine
Sulfo Cy7 amine
Cy3 azide
Cy5 azide
Cy7 azide
Sulfo Cy3 azide
Sulfo Cy3 azide
Sulfo Cy3 azide
Cy3 alkyne
Cy5 alkyne
Cy7 alkyne
Sulfo Cy3 alkyne
Sulfo Cy5 alkyne
Sulfo Cy7 alkyne
Cy3 maleimide
Cy5 maleimide
Cy7 maleimide
Cy2 NHS Ester
Cyanine2 NHS ester
Cy2 amine
Cyanine2 amine
Cy2 maleimide
Cy2 Carboxylic acid
CY2 azide
Cy2 Bis NHS Ester
Cy3 Bis NHS Ester
Cy5 Bis NHS Ester
Cy7 Bis NHS Ester
Sulfo-Cy2 bis-NHS ester
Sulfo-Cy3 bis-NHS ester
Sulfo-Cy5 bis-NHS ester
Sulfo-Cy7 bis-NHS ester
二、FITC\罗丹明系列染料
Calcein tetraethyl ester 1170856-93-5
Dansyl chloride 丹磺酰氯 605-65-2
Dansyl acid 6268-49-1
DABCYL acid, SE 146998-31-4
DNP-X acid 10466-72-5
8-Hydroxy julolidine 41175-50-2
3,6-Dichloro trimellitic acid 137071-78-4
5-Carboxy Fluorescein; 5-FAM 5-羧基荧光素 76823-03-5
6-Carboxy Fluorescein; 6-FAM 6-羧基荧光素 3301-79-9
5(6)Carboxy fluorescein; 5(6)-FAM 5(6)羧基荧光素 72088-94-9
5(6)-FAM, SE ,5(6)Carboxy fluorescein-NHS ester ,5(6)-FAM-NHS ester 117548-22-8
5-Carboxyfluorescein succinimidyl ester; 5-FAM, SE ;5-Carboxyfluorescein-NHS ester
92557-80-7
6-Carboxyfluorescein succinimidyl ester; 6-FAM, SE ;6-Carboxyfluorescein-NHS ester
92557-81-8
5(6)-FITC, 5(6)-Fluorescein 27072-45-3
5-FITC,5-Fluorescein 3326-32-7
6-FITC,6-Fluorescein 3326-31-6
5(6)-Carboxy tetramethyl rhodamine;5(6)-TAMRA ;5(6)羧甲基罗丹明 150347-56-1
5-Carboxytetramethylrhodamine; 5-TAMRA,5-羧甲基罗丹明 91809-66-4
6-Carboxytetramethylrhodamine;6-TAMRA, 6-羧甲基罗丹明 91809-67-5
5(6)-Carboxytetramethylrhodamine succinimidyl ester;5(6)-TAMRA-NHS ester 246256-50-8
5-Carboxytetramethylrhodamine succinimidyl ester;5-TAMRA-NHS ester 5-羧基四甲基罗丹明琥珀酰亚胺酯,5-TAMRA, SE 150810-68-7
6-Carboxytetramethylrhodamine succinimidyl ester;6-TAMRA-NHS ester 6-羧基四甲基罗丹明琥珀酰亚胺酯,6-TAMRA, SE 150810-69-8
1,4-dichloro 5-Carboxytetramethylrhodamine 198546-47-3
1,4-dichloro 6-Carboxytetramethylrhodamine 407581-83-3
Sulforhodamine 101; Sulforhodamine 640 磺酰罗丹明101 60311-02-6
5-Carboxy-X-rhodamine; 5-ROX 216699-35-3
6-Carboxy-X-rhodamine; 6-ROX 194785-18-7
5(6)-Carboxy-X-rhodamine; 5(6)-ROX 198978-94-8
Rhodamine 101;Rhodamine 640 64339-18-0
ICG-Vinylsulfone
FAM-Isothiocyanate
TAMRA-Isothiocyanate
ICG-Isothiocyanate
FAM-carboxlaic acid Carboxy Fluorescein COOH
TAMRA-carboxlaic acid Carboxy tetramethyl rhodamine COOH
ICG-carboxlaic acid
FAM-maleimide Carboxy Fluorescein MAL
TAMRA-maleimide Carboxy tetramethyl rhodamine MAL
ICG-maleimide
FAM-Amine Carboxy Fluorescein NH2
TAMRA-Amine Carboxy tetramethyl rhodamine NH2
FAM-NHS ester Carboxy Fluorescein succinimidyl ester
TAMRA NHS ester Carboxy tetramethyl rhodamine succinimidyl ester
ICG NHS ester
Sulfo FAM-NHS ester
Sulfo TAMRA NHS ester
Sulfo ICG-NHS ester
FAM-Vinylsulfone
TAMRA-Vinylsulfone
ICG-Vinylsulfone
三、ATTO系列染料
ATTO 390
ATTO 425
ATTO 465
ATTO 488
ATTO 495
ATTO 514
ATTO 520
ATTO 532
ATTO Rho6G
ATTO 550
ATTO 565
ATTO Rho3B
ATTO Rho11
ATTO Rho12
ATTO Thio12
ATTO Rho101
ATTO 590
ATTO Rho13
ATTO 594
ATTO 610
ATTO 620
ATTO Rho14
ATTO 633
ATTO 647
ATTO 647N
ATTO 655
ATTO Oxa12
ATTO 665
ATTO 680
ATTO 700
ATTO 725
ATTO 740
以上只是部分产品,如需了解更多染料,请咨询客服。
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