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SAR1A Protein

GTP-binding protein SAR1a, COPII-associated small GTPase, SAR1, SARA, SARA1

Catalog No. Product Name Size List Price (US$) Quantity
BP002285-PRO-709 Recombinant Human SAR1A Protein 20 ug 160.00
BP002285-PRO-709 Recombinant Human SAR1A Protein 1 mg 2700.00
Description

Introduction
SAR1A is a member of the small GTPase superfamily. SAR1A is a vital component of COPII vesicle coats involved in export of cargo from the ER (Endoplasmic Reticulum). The GTPase activity of SAR1A serves as a molecular switch to control protein-protein and protein-lipid interactions which dictate vesicle budding from the ER. SAR1A, while GDP-bound interacts with the membrane-bound exchange factor Sec12 and trades its bound GDP for GTP. SAR1A is also involved in the transport from the ER to the Golgi apparatus. SAR1A is required to maintain SEC16A localization at distinct locations on the ER membrane possibly by preventing its dissociation. SAR1A-GTP-dependent compilation of SEC16A on the ER membrane creates a structured scaffold defining endoplasmic reticulum exit sites.

BP002285-PRO-709: Recombinant Human GTP-binding protein SAR1a (SAR1A) Protein

Source: E. coli-derived.
Recombinant Human GTP-binding protein SAR1a (SAR1A) Protein fused with 20 amino acid His tag at N-terminus is a single, non-glycosylated, polypeptide chain containing 218 amino acids (1- 198 a.a.) and having a molecular mass of 24.5 kDa. Recombinant Human GTP-binding protein SAR1a (SAR1A) Protein is purified by proprietary chromatographic techniques.
Purity: > 90% as determined by SDS-PAGE.
Formulation: The SAR1A solution contains 20 mM Tris-HCl buffer (pH 8.0), 1 mM DTT and 10% glycerol.

Shipping: The product is shipped with ice pack. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70°C as supplied.

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