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Sigma Aldrich Fine Chemicals Biosciences Isopropyl beta D thiogalac
Supplier: Sigma Aldrich Fine Chemicals Biosciences 11411446001
Isopropyl--D-thiogalactoside (IPTG) is a chemical analog of galactose that cannot be cleaved by -galactosidase. IPTG functions by binding to the lacI repressor and altering its conformation which prevents the repression of the -galactosidase coding gene lacZ.
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