S9059

Streptavidin−Gold from Streptomyces avidinii

~10 nm nominal (colloidal gold), buffered aqueous glycerol solution

• Numéro MDL: MFCD00132383
• Code UNSPSC : 12352203
• Nomenclature NACRES : NA.46

Propriétés

• Conjugué: gold conjugate
• Niveau de qualité: 200
• Forme: buffered aqueous glycerol solution
• Concentration: ~2.5 A₅₂₀ units/mL
• Nominal(e): ~10 nm (colloidal gold)
• Taille moyenne des particules: 8-12 nm (monodisperse)
• Température de stockage: 2-8°C
• Modification post-traductionnelle de la cible: unmodified

Description

Description générale

Strepavidin-collodial gold conjugate binds to molecules, such as primary antibodies, that have been previously conjugated with biotin.

Streptavidin is a protein produced by the bacterium Streptomyces avidinii. It has four binding sites for biotin as does avidin. Both have been used extensively as probes in immunochemical systems, conjugated to antibodies, enzymes, fluorochromes and gold. Avidin is highly basic (pI ~ 10.5), compared to streptavidin (pI ~ 5-6). Avidin has a slightly higher binding capacity for biotin than streptavidin does, but it has glycosylated side chains which give higher backgrounds in blotting techniques than does streptavidin, which is not a glycoprotein. Streptavidin is more resistant than avidin to dissociation into subunits by guanidinium chloride. Streptavidin may be conjugated to colloidal gold.

Application

For detection of biotinylated compounds.

Strepavidin-collodial gold conjugate is a component of streptavidin/colloidal gold-biotin detection systems use in immunoblotting, light microscopy, and immunoelectron microscopy applications. It is commonly used in postembedding immunocytochemistry.

Forme physique

Suspension in 0.01 M phosphate buffered saline, pH 7.2, containing 1% BSA, 20% glycerol, and 15 mM sodium azide

Clause de non-responsabilité

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Informations sur la sécurité

• Code de la classe de stockage: 10 - Combustible liquids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)