streptavidin


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strep·ta·vi·din

(strep'ta-vī'din),
A bacterial protein used as a probe in immunologic assays because of its strong affinity and specificity for biotin; streptavidin is used as a bridge to link a chromogen to a biotinylated substrate specific for the substance of interest.
[streptococcus + avidin]

streptavidin

[strep′təvī′din]
a biotin-binding protein isolated from Streptomyces and used to identify antigens; a widely used reagent for immunoassays.

strep·ta·vi·din

(strep-tav'i-din)
A bacterial protein used as a probe in immunologic assays because of its strong affinity and specificity for biotin; used as a bridge to link a chromogen to a biotinylated substrate specific for the substance of interest.
[streptococcus + avidin]

streptavidin

a protein found in Streptomyces griseus which has a high affinity for biotin and is used in immunofluorescent studies.
References in periodicals archive ?
Thereafter, the technology formed the basis of a NewCo which raised funding to develop the technology further and take it to the market place (initially focussed on making a magnetic streptavidin fusion protein).
This Global Report 2015 is a result of industry experts' diligent work on researching the world market of streptavidin.
The plates were coated with 100 pl of Streptavidin (5 [micro]g/ml) per plate.
The DNA fragments hybridized to biotinylated probes were selectively captured by streptavidin coated magnetic beads (Streptavidin Magnesphere Paramagnetic Particles, Promega, Shanghai, China).
Examples of tags meeting these criteria include fluorescein paired to anti-fluorescein antibodies, and biotin paired to streptavidin.
The leftover, unbound polymer is then added to the etalons, where the corresponding colour change indicates how much polymer is left, and in turn, how much streptavidin there was to bind with.
In this application, QDs tagged with streptavidin are employed in conjunction with biotin-tagged bacteriophage to successfully detect as little as 10 contaminating cells per mL in an aqueous sample (30).
Streptavidin is also employed in Siemens Immulite (Siemens AG, Erlangen, Germany) specific-allergy testing.
Then, due to the strong interaction of streptavidin and biotin, the enzyme containing streptavidin is attached to the biotinylated monolayer of olioligonucleotide that has been attached to the DNA molecule on the surface," Dr.
The presence of targets was detected using a dye-labeled protein, Cy3-labeled streptavidin, and measuring the fluorescence signal.
The sample was adsorbed on uncoated microparticles and microparticles coated with streptavidin prior to vitamin D assay.
Once hybridization of these various components has been completed, the biotin-oligo(dT) probes (and the attached transcripts) are affinity captured by streptavidin coated onto magnetic beads.