FITC1
FluoroTag™ FITC Conjugation Kit
Sinónimos:
FITC
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About This Item
Código UNSPSC:
12352200
NACRES:
NA.32
Productos recomendados
envase
pkg of (Kit contains reagents for 5 conjugations.)
Nivel de calidad
fluorescencia
λex 495 nm; λem 525 nm
temp. de almacenamiento
2-8°C
Aplicación
The Flourotag FITC Conjugation Kit can be used for Immunohistochemisty and Immunocytochemistry using Flow Cytometry. It is also be used for the conjugation of FITC to peptide hormones, cytokines, growth factors and proteins.
Características y beneficios
- Suitable for both small (1 mg) and large (5 mg) scale conjugations
- Completely aqueous procedure - no DMF needed
- Fast gel filtration separation of conjugate from excess FITC
- Complete protocols for conjugation and F/P ratio determination
- Sufficient reagents for at least 5 conjugations of 5 mg protein each and for optimization of F/P ratio before scale-up
- References for applications and protocols
Principio
Sigma offers a convenient kit for preparing FITC-labeled antibodies. Fluorescein isothiocyanate (FITC), Isomer 1, is a widely used fluorophore, popular because of its high quantum efficiency and stability when conjugated. FITC is yellow-orange in color with an absorption maximum at 495 nm. Upon excitation it emits a yellow-green color with an emission maximum at 525 nm. Conjugation occurs through free amino groups of proteins or peptides, forming a stable thiourea bond (see reaction). FITC conjugates of antibodies, lectins, hormones, and growth factors have been used in a variety of immunohistochemical and flow cytometry applications. The protocols have been optimized for antibodies, but may be adapted to other proteins by the end user.
Nota de análisis
Procedure
1. Dissolve protein and FITC in carbonate-bicarbonate buffer.
2. Slowly add FITC to protein with stirring. Cover with foil and stir 2 hours at room temperature.
3. Separate conjugate from free FITC on G-25 column. Collect fractions.
4. Pool fractions containing conjugate.
5. Determine F/P ratio of conjugate spectrophotometrically.
6. Stabilize with 1% bovine serum albumin and 0.1% sodium azide and store at 0-5 °C.
1. Dissolve protein and FITC in carbonate-bicarbonate buffer.
2. Slowly add FITC to protein with stirring. Cover with foil and stir 2 hours at room temperature.
3. Separate conjugate from free FITC on G-25 column. Collect fractions.
4. Pool fractions containing conjugate.
5. Determine F/P ratio of conjugate spectrophotometrically.
6. Stabilize with 1% bovine serum albumin and 0.1% sodium azide and store at 0-5 °C.
Información legal
FluoroTag is a trademark of Sigma-Aldrich Co. LLC
Solo componentes del kit
Referencia del producto
Descripción
- Sephadex G-25 column, 3.5 mL 1
- Sephadex G-25 column, 9.1 mL 1
- Fluorescein isothiocyanate isomer I - F7250KC-2MG 2 mg
Los componentes del kit también están disponibles por separado
Referencia del producto
Descripción
SDS
- P3813Phosphate buffered saline, powder, pH 7.4, for preparing 1 L solutions 5 pkgSDS
Producto relacionado
Referencia del producto
Descripción
Precios
Palabra de señalización
Warning
Frases de peligro
Consejos de prudencia
Clasificaciones de peligro
Eye Irrit. 2
Código de clase de almacenamiento
10 - Combustible liquids
Punto de inflamabilidad (°F)
Not applicable
Punto de inflamabilidad (°C)
Not applicable
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