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Streptavidin


STREPTAVIDIN - A bacterial analog of egg white avidin.
STRINGENCY - The conditions employed for hybridization which determine the specificity of the annealing reaction between two single-stranded nucleic acid molecules.
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Streptavidin: A bacterial analog of egg white avidin.
Stringency: A term used to describe the conditions of hybridization.
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Biotin has an extraordinarily high affinity for streptavidin with a reported dissociation constant of ~10-15. This very strong binding affinity has made the biotin-streptavidin system very attractive for a multitude of in vitro labeling applications.
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