El sustrato de galactosidasa, galactósido DDAO, ofrece un producto de hidrólisis que puede excitarse con láser 633 nm (excitación/emisión máximaMás información
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Número de catálogo
Cantidad
D6488
también denominado D-6488
5 mg
Número de catálogo D6488
también denominado D-6488
Precio (MXN)
-
Cantidad:
5 mg
El sustrato de galactosidasa, galactósido DDAO, ofrece un producto de hidrólisis que puede excitarse con láser 633 nm (excitación/emisión máxima ∼ 645/660). Aunque el sustrato en sí es fluorescente (excitación/emisión máxima ∼ 460/610 nm), la diferencia entre el sustrato y el producto de hidrólisis es superior a 200 nm, lo que permite distinguir fácilmente las dos especies.
Para uso exclusivo en investigación. No apto para uso en procedimientos diagnósticos.
Especificaciones
Excitación/emisión645⁄660
Peso molecular470.31
Cantidad5 mg
Condiciones de envíoTemperatura ambiente
SustratoSustrato Beta-Gal
Método de detecciónFluorescente
Substrate PropertiesSustrato químico
Unit SizeEach
Contenido y almacenamiento
Almacenar en el congelador (de -5 a -30 °C) y proteger de la luz.
Citations & References (9)
Citations & References
Abstract
Oxygen sensitivity of reporter genes: implications for preclinical imaging of tumor hypoxia.
Authors:Cecic I, Chan DA, Sutphin PD, Ray P, Gambhir SS, Giaccia AJ, Graves EE
Journal:Mol Imaging
PubMed ID:17711777
'Reporter gene techniques have been applied toward studying the physiologic phenomena associated with tumor hypoxia, a negative prognostic indicator. The purpose of this study was to assess the potential adverse effects of hypoxic conditions on the effectiveness of four commonly used reporter genes: Renilla luciferase, monomeric red fluorescent protein, thymidine ... More
In vivo imaging of beta-galactosidase activity using far red fluorescent switch.
Authors:Tung CH, Zeng Q, Shah K, Kim DE, Schellingerhout D, Weissleder R
Journal:Cancer Res
PubMed ID:14996712
'beta-Galactosidase (beta-gal) has been widely used as a transgene reporter enzyme, and several substrates are available for its in vitro detection. The ability to image beta-gal expression in living animals would further extend the use of this reporter. Here we show that DDAOG, a conjugate of beta-galactoside and 7-hydroxy-9H-(1,3-dichloro-9,9-dimethylacridin-2-one) (DDAO), ... More
beta-Galactosidase activity assay using far-red-shifted fluorescent substrate DDAOG.
Authors:Gong H, Zhang B, Little G, Kovar J, Chen H, Xie W, Schutz-Geschwender A, Olive DM,
Journal:Anal Biochem
PubMed ID:19103143
beta-Galactosidase (beta-gal) is commonly used as a reporter gene in biological research, and a wide variety of substrates have been developed to assay its activity. One substrate, 9H-(1,3-dichloro-9,9-dimethylacridin-2-one-7-yl) beta-d-galactopyranoside (DDAOG), can be cleaved by beta-gal to produce 7-hydroxy-9H(I,3-dichloro-9,9-dimethylacridin-2-one) (DDAO). On excitation, DDAO generates a far-red-shifted fluorescent signal. Using this substrate, ... More
Fundamental to eukaryotic cell signaling is the regulation of protein function by directed localization. Detection of these events has been largely qualitative owing to the limitations of existing technologies. Here we describe a method for quantitatively assessing protein translocation using proximity-induced enzyme complementation. The complementation assay for protein translocation (CAPT) ... More
Quantification of beta-galactosidase activity after non-viral transfection in vivo.
Authors:Zinselmeyer BH, Beggbie N, Uchegbu IF, Schätzlein AG
Journal:J Control Release
PubMed ID:12932652
The limited efficacy of non-viral gene delivery systems currently hampers their wider therapeutic use. In order to further develop novel gene delivery systems, it is important to quantify their efficacy. Many reporter gene assays have limitations when being used to quantify expression in vivo. We have developed a simple assay ... More