GeneTex
United States (US)

Streptavidin (HRP)

Cat No. GTX30949

Application WB, ELISA, IHC
PRODUCT

Product Description

Streptavidin is a 22- 55 kDa (subunit MW 14 kDa) biotin-binding protein isolated from Streptomyces avidini. Streptavidin is superior to avidin, because it does not contain carbohydrate like avidin and has no net charge at neutral pH. Streptavidin~biotin system is routinely used in Immunohistochemistry (IHC). Extinction Coefficient 1% A280=32.0. Protein content: > 95%. Peroxidase used for conjugation is 44 kDa glycoprotein isolated from horseradish roots. The Rz (Reinhetszahl), absorbance ratio of A403/A275 is ~3.0. One mg of Streptavidin is conjugated with peroxidase, in equimolar ratio. Unconjugated Streptavidin is removed.
APPLICATION

Application Note

*Optimal dilutions/concentrations should be determined by the researcher.
Application Dilution
WB Assay dependent
ELISA Assay dependent
IHC Assay dependent
Not tested in other applications.
PROPERTIES

Form

Liquid

Buffer

10 mM phosphate, 200 mM NaCl (pH 7.5), BSA 10 mg/ml and 0.05% Proclin 300.

Storage

Store as concentrated solution. Centrifuge briefly prior to opening vial. Store at 4º C.

Concentration

1 mg/ml (Please refer to the vial label for the specific concentration.)

Conjugation

Horseradish peroxidase(HRP)

Note

For laboratory use only. Not for any clinical, therapeutic, or diagnostic use in humans or animals. Not for animal or human consumption.
TARGET

Background

Streptavidin is a 22- 55 kDa (subunit MW 14 kDa) biotin-binding protein isolated from Streptomyces avidini. Streptavidin is superior to avidin, because it does not contain carbohydrate like avidin and has no net charge at neutral pH. Streptavidin~biotin system is routinely used in Immunohistochemistry (IHC). Extinction Coefficient 1% A280=32.0. Purity: > 99% pure by HPLC; Eletrophoretically homogenous, single band. Protein content: > 95%; Activity 14.8 units/ mg, one unit bunds 1.0 microgram of d-biotin; Protease activity: 0.000018 units/mg; Isoelectric point: 7.0 +/- determined by Isoelectric focusing. Peroxidase used for conjugation is 44 kDa glycoprotein isolated from horseradish roots. The Rz (Reinhetszahl), absorbance ratio of A403/A275 is ~3.0. One mg of Streptavidin is conjugated with peroxidase, in equimolar ratio. Unconjugated Streptavidin is removed.
Package List Price ($)
$ 159