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S0677

Sigma-Aldrich

Streptavidin from Streptomyces avidinii

recombinant, expressed in E. coli, lyophilized powder

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About This Item

CAS Number:
9013-20-1
MDL number:
MFCD00082035
UNSPSC Code:
12352203
NACRES:
NA.46

recombinant

expressed in E. coli

form

lyophilized powder

capacity

4 mol/mol binding capacity (Biotin)

storage temp.

−20°C

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General description

Streptavidin is a biotin-binding protein that is obtained from Streptomyces avidinii. It is resistant to extreme temperature, pH, detergents and proteolytic enzymes. Streptavidin has a molecular weight of 60kDa and exists as a homotetramer.

Application

Streptavidin from Streptomyces avidinii has been used-
  • for blocking of the AFM (atomic force microscopy) tip, during the measurement of unbinding forces in the avidin-biotin system
  • for coupling of anti-HA (hemagglutinin) antibodies during cell free synthesis and assembly of proteins on a biochip
  • for the coating of the gelatin flow phantoms to eventually determine the feasibility of IVUS (intravascular ultrasound) transducer for (biotinylated) microbubble-based drug delivery
  • to immobilize proteins and oligonucleotides

Biochem/physiol Actions

Streptavidin is an antibiotic that functions by binding to and depleting the essential vitamin biotin from the surrounding environment. Because of its unique properties, streptavidin has found various applications in biological studies, including immunotherapy, immunoassays, hybridization assays, lymphocyte activation, antigen localization and affinity chromatography.

Unit Definition

One unit will bind 1.0 μg biotin.

Physical form

Lyophilized from 5 mM potassium phosphate buffer

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Moitrayee Bhattacharyya et al.
eLife, 9 (2020-03-10)
The many variants of human Ca2+/calmodulin-dependent protein kinase II (CaMKII) differ in the lengths and sequences of disordered linkers connecting the kinase domains to the oligomeric hubs of the holoenzyme. CaMKII activity depends on the balance between activating and inhibitory
Cell-free protein synthesis and assembly on a biochip.
Heyman Y et al
Nature Nanotechnology, 7(6), 374-378 (2012)
Polymer Nanoparticles
Progress in Molecular Biology and Translational Science, 104 (2011)
An IVUS transducer for microbubble therapies.
Kilroy JP et al
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 61(3), 441-449 (2014)
John G Bruno et al.
Microchemical journal : devoted to the application of microtechniques in all branches of science, 115, 32-38 (2014-04-26)
Fifty-two candidate DNA aptamer sequences were selected for binding to the cardiovascular biomarker B-type or brain natriuretic peptide (BNP). Candidate aptamers were screened to rank their relative affinities against BNP by an aptamer-based ELISA-like aptamer microplate assay (ELASA). The highest
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