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S4762 Sigma

Streptavidin from Streptomyces avidinii

essentially salt-free, lyophilized powder, ≥13 units/mg protein

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Properties

Related Categories Antibodies, Biotin/Avidin, Molecular Biology, Plant Biotechnology, Plant Proteomics,
form   essentially salt-free, lyophilized powder
mol wt   mol wt ~60 kDa
capacity   4 mol/mol (Biotin)
Featured Industry   Research Pathology
storage temp.   −20°C

Description

Frequently Asked Questions

Frequently Asked Questions are available for this Product.

Packaging

5, 10 mg in glass bottle

Package size based on protein content.

Preparation Note

Affinity purified.

General description

Streptavidin derives its name from its bacterial source Streptomyces avidinii and from the hen egg-white protein, avidin, which has high affinity to biotin. Its homologous core shares 33% sequence similarity with avidin, as well as sharing a common tetrameric structure. It is a crystalline tetrameric protein, with a molecular weight of 4*15000Da. It binds four molecules of biotin. Streptavidin lacks carbohydrate and sulfur-containing amino acids.

Streptavidin is a crystalline protein isolated from the bacterium Streptomyces avidinii and possesses biotin-binding ability. It has four binding sites for biotin like avidin and binds four molecules of biotin. Streptavidin is now considered as a new type of biotin-binding protein.

Price and Availability


Amplified Detection
Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3
Protocols & Articles

Articles

Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
Keywords: Affinity chromatography, Centrifugation, Chromatography, Digestions, Direct immunofluorescence, Gene expression, High performance liquid chromatography, Immunofluorescence, Ion Exchange, Microscopy, Precipitation, Purification, Rheumatology, Scanning electron microscopy

Related Content

Antibody Explorer - Search 80,000 Antibodies at Sigma-Aldrich

Monoclonal and polyclonal primary antibodies are focused on cell biology, neurobiology and molecular biology. Secondary antibodies targeting multiple host’s IgG are conjugated to alkaline phosphatase...
Keywords: Amplification, Buffers, Cell biology, Enzyme-linked immunosorbent assay, Immunofluorescence, Immunohistochemistry, Immunoprecipitation, Molecular biology, Phosphorylations, Purification, Western blot

Peer-Reviewed Papers
15

References

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92210 Timestrip Plus 0 °C
06693 Timestrip Plus -20 °C

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Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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