streptavidin unconjugated
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STREPTAVIDIN, Unconjugated Catalog number: AR-6632-01, 1 mg 1 mg/ml AR-6632-02 5 mg 5 mg/ml
Description: 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 bunds 1.0 microgram of d-biotin; Protease activity: 0.000018 units/mg Isoelectric point: 7.0 +/- determined by Isoelectric focusing.
Presentation: -01 is supplied at 1 mg/ml in 10 mM PO4, 200 mM NaCl, and pH 7.4, 0.05% sodium azide. -02 is supplied at 5 mg/ml in 10 mM PO4, 200 mM NaCl, and pH 7.4, 0.05% sodium azide.
Application: ELISA For conjugation of streptavidin, sodium azide should be removed by dialysis or gel filtration column.
Storage: 2-8oC.
Limitation and warranty: Our warranty is limited to the actual price paid for the product. We are not liable for any property damage, personnel injury, time, effort or economic loss due to our product. MSDS: This product contains 0.05 % sodium azide as a preservative, appropriate care should be taken in handling. National Institute of Occupational Safety and Health has warning that sodium azide can react with lead, copper, brass or solder in the plumbing system and forms hydrazoic acid in acidic condition. Discard with copious amount of water. Avoid skin and eye contact with all laboratory products. Use appropriate lab. gear, lab coat , gloves and safety glasses. Do not ingest any lab. products. This product is not approved for administration in human or animals. |
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