PRODUCT
Summary
Streptavidin is a 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%.
APPLICATION
Application Note
*Optimal dilutions/concentrations should be determined by the researcher.
Application |
Recommended Dilution |
Assay dependent |
Assay dependent |
Not tested in other applications.
PROPERTIES
Form
Liquid
Buffer
0.1M Bicarbonate (pH8.0)
Preservative
0.05% Sodium azide
Storage
Store as concentrated solution. Centrifuge briefly prior to opening vial. Store at 4ºC.
Concentration
1 mg/ml (Please refer to the vial label for the specific concentration.)
Conjugation
Unconjugated
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 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 binds 1.0 microgram of d-biotin; Protease activity: 0.000018 units/mg; Isoelectric point: 7.0 +/- determined by Isoelectric focusing.
Research Area
REFERENCE
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REVIEW
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