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- PRO-621
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- 2025年07月11日
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- 详细信息
- 文献和实验
- 技术资料
- 库存：
大量
- 英文名：
Streptavidin Recombinant, His Tag
- 保质期：
1年
- 供应商：
上海沪震实业有限公司
- 保存条件：
-20°C
- 规格：
5μg/20μg/1mg
CATALOGUE NUMBER
PRO-621
INTRODUCTION
Streptavidin is a tetrameric protein secreted by Streptomyces avidinii which binds firmly to biotin. Streptavidin is widely used in molecular biology through its unique high affinity for the vitamin biotin. The dissociation constant (Kd) of the biotin-streptavidin complex is about ~10-15 mol/L. The strong affinity recognition of biotin and biotinylated molecules has made streptavidin one of the most important components in diagnostics and laboratory kits. The streptavidin/biotin system has one of the biggest free energies of association of yet observed for noncovalent binding of a protein and small ligand in aqueous solution (K_assoc = 10**14). The complexes are also extremely stable over a wide range of temperature and pH.DESCRIPTION
Recombinant Streptomyces Avidinii Streptavidin produced in E.Coli is a single, non-glycosylated polypeptide chain (25-183) containing a total of 167 amino acids and having a molecular mass of 17kDa. The Streptavidin protein is fused to an 8 aa N-terminal His-Tag and purified by proprietary chromatographic techniques.SOURCE
Escherichia Coli.PHYSICAL APPEARANCE
Sterile Filtered colorless solution.FORMULATION
The Streptavidin protein solution (1mg/ml) contains 20mM Tris-HCl pH7.5.STABILITY
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Avoid multiple freeze-thaw cycles.
AMINO ACID SEQUENCE
MVHHHHHHDP SKDSKAQVSA AEAGITGTWY NQLGSTFIVT AGADGALTGT YESAVGNAES RYVLTGRYDS APATDGSGTA LGWTVAWKNN YRNAHSATTW SGQYVGGAEA RINTQWLLTS GTTEANAWKS TLVGHDTFTK VKPSAASIDA AKKAGVNNGN PLDAVQQ.PURITY
Greater than 95.0% as determined by analysis by SDS-PAGE.REFERENCES
Title:Laterally mobile, functionalized self-assembled monolayers at the fluorous-aqueousinterface in a plug based microfluidic system: characterization and testing with
membrane protein crystallization.
Publication:Department of Chemistry, The University of Chicago,929 East 57th Street, Chicago, Illinois 60637
USAGE
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.风险提示：丁香通仅作为第三方平台，为商家信息发布提供平台空间。用户咨询产品时请注意保护个人信息及财产安全，合理判断，谨慎选购商品，商家和用户对交易行为负责。对于医疗器械类产品，请先查证核实企业经营资质和医疗器械产品注册证情况。
文献和实验Colloidal Gold/Streptavidin Methods
. This nonspecific binding has been attributed both to its high isoelectric point (PI = 10) and to the fact that the protein is glycosylated (3 , 4 ). Because of the problem of nonspecific binding of avidin, streptavidin has largely replaced avidin
Smart Polymer-Streptavidin Conjugates
The conjugation of stimuli-responsive, or “smart,” polymers to streptavidin is described. The polymer is synthesized with a thiol-reactive end-group, which is used to end-graft the polymer to cysteine or lysine side-chains
Covalent Coupling of DNA Oligonucleotides and Streptavidin
Semisynthetic DNA-protein conjugates are synthesized by covalent coupling of thiol-modified DNA oligonucleotides and streptavidin. The resulting conjugates have a binding capacity for four equivalents of biotin and one nucleic acid
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