N9284
Nitroreductase from Escherichia coli
≥90% (SDS-PAGE), recombinant, expressed in E. coli
Synonym(s):
NTRA
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recombinant
expressed in E. coli
Quality Level
Assay
≥90% (SDS-PAGE)
form
lyophilized powder
specific activity
≥100 units/mL
mol wt
monomer 24000
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UniProt accession no.
greener alternative category
shipped in
wet ice
storage temp.
−20°C
Gene Information
Escherichia coli K12 ... nfsB(945483)
General description
Nitroreductase is a flavoprotein and is encoded by the NfsB gene. It comprises a dimer, with 217 amino acids and active site in each subunit. The structure has FMN and the substrate bound to the enzyme.
Application
Nitroreductase from Escherichia coli has been used in the conjugation generation with pig liver esterase (PLE). It has also been used in chemiluminescence response studies with probes HyCL-3 and HyCL-4-AM in rat liver microsomes.
Biochem/physiol Actions
Nitroreductase (NTR) catalyzes the reduction of nitroaromatic substrates and quinones. The mutant F124K of NTR is useful in cancer therapy and improves sensitization of drug CB1954.
Nitroreductase increases the sensitivity of organisms to nitro-containing drugs such as metronidazole by converting the nitro group to a cytotoxic nitro radical.
Nitroreductases can play a crucial role in redox systems via NADPH or NADH as a reductant.
Shows ability to reduce quinines. Enzyme for activating prodrugs in antibody directed enzyme prodrug therapy.
Physical properties
Lyophilized powder containing PBS. Does not contain BSA as excipient
Unit Definition
One unit will reduce one μmole of Cytochrome C per minute in the presence of Menadione and NADH at pH 7.4 at 37 °C.
Preparation Note
Produced using animal component-free materials.
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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