Modified-affinity streptavidin

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or...

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435 724, 435471, 530350, 530412, 530413, C12Q 170, G01N 3353, C07K 1436, C07K 114

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active

061564931

ABSTRACT:
Streptavidin tetramers have at least one monomer containing an amino acid modification that produces a reduced binding affinity for biotin, a modified off-rate, a modified on-rate, or an altered binding enthalpy. Polynucleotides encoding the modified monomers are also provided. The modified streptavidin and chimeric streptavidin molecules are useful in methods of bioseparations and cell sorting, imaging, drug delivery, and diagnostics.

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