Recombinant Streptavidin重组链霉亲和素现货供应

英文名 ：Recombinant Streptavidin

别名 ：Streptavidin, Recombinant

类别    ：重组蛋白

分子量 ：~52,000 per tetramer.

储存 ：冷冻（-20℃）

规格    ：1毫克/5毫克

产品介绍：

Streptavidin is a tetrameric protein composed of identic subunits. Each subunit binds one biotin molecule with a KD of ~1×10-15 M. The preparation contains an N- and C-terminal shortened variant (core streptavidin) with improved properties concerning homogeneity, solubility, resistance towards proteolytic degradation and accessibility of the biotin binding pocket as compared to native streptavidin.

Recombinant Streptavidin重组链霉亲和素现货供应

使用说明

This material is offered by Sangon Biotech for research, laboratory or further evaluation purposes. NOT FOR HUMAN USE.

技术规格

Physical Appearance     Sterile Filtered White lyophilized (freeze-dried) powder.

Purity                    > 98 % by SDS-PAGE and HPLC analyses

Source                    Recombinant streptavidin from Streptomyces avidinii,                                    produced in Escherichia coli.

Specific Activity      > 17 U/mg (one unit binds 1 μg D-biotin at pH 8.9)

Formulation              Lyophilized in 10 mM potassium phosphate buffer pH 6.5.

Endotoxin              Less than 0.1 EU/μg of rStreptavidin as determined by LAL                              method.

Reconstitution       Dissolve with double distilled water

Shipment               At ambient temperature

A282 of 0.1% solution     3.1

Proteolytic Activity      < 10-3 U/mg protein (Azocoll, 25 °C, 24 h, pH 8.0)

Solubility           Clearly soluble in ddH2O (OD405nm < 0.1 at 10 mg/ml water)

Stability (lyophilized)    2 years after shipping

Recombinant Streptavidin重组链霉亲和素现货供应

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