General Information of Drug-Metabolizing Enzyme (DME) (ID: DEX5D46)

DME Name Oxygen-insensitive NADPH nitroreductase A (nfsA)
Synonyms Oxygen-insensitive NAD(P)H nitroreductase A; Modulator of drug activity A; STM0874; mdaA; nfsA; pnrA; snrA
Gene Name nfsA
UniProt ID
NFSA_SALTY
INTEDE ID
DME1971
3D Structure
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2D Sequence (FASTA)
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3D Structure (PDB)
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Gene ID
1252393
EC Number EC: 1.5.1.38
Oxidoreductase
CH-NH donor oxidoreductase
NAD/NADP acceptor oxidoreductase
EC: 1.5.1.38
Lineage Species: Salmonella enterica
Kingdom: Bacteria
Phylum: Proteobacteria
Class: Gammaproteobacteria
Order: Enterobacterales
Family: Enterobacteriaceae
Genus: Salmonella
Species: Salmonella enterica

Subspecies: Salmonella enterica subsp. enterica serovar Typhimurium
Subspecies: Salmonella enterica subsp. enterica serovar Typhimurium TA100
Tissue Distribution Primarily distributed in human gut.
Sequence
MSPTIELLCGHRSIRHFTDEPVTDAQREAIIAAARSTSSSSFLQCSSIIRITDRALREAL
VPLTGGQKHVAQAAEFWVFCADFNRHLQICPDAQLGLAEQLLLGVVDTAMMGQNALTAAE
SLGLGGVYIGGIRNNIESVTELLKLPKHVLPLFGLCLGWPADNPDLKPRLPAELVVHENQ
YQPLDEKLLARYDEQLAEYYLTRGSNTRRDTWSDHIRRTLIKENRPFILEYLHKQGWATR
Function
This enzyme catalyzes the reduction of nitroaromatic compounds using NADPH, and has a broad electron acceptor specificity. Moreover, it reduces nitrofurazone by a ping-pong bi-bi mechanism possibly to generate a two-electron transfer product.
KEGG Pathway
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Molecular Interaction Atlas (MIA) of This DME

Molecular Interaction Atlas (MIA) Jump to Detail Molecular Interaction Atlas of This DME
2 Approved Drug(s) Metabolized by This DME
Drug Name Drug ID Indication ICD 11 Highest Status REF
Nitrazepam DMEGIQ6 Epilepsy 8A60-8A68 Approved [1]
Ornidazole DM6QHDJ Amoebiasis 1A36 Approved [1]
1 Clinical Trial Drug(s) Metabolized by This DME
Drug Name Drug ID Indication ICD 11 Highest Status REF
AI3-23606 DMHMT49 Trypanosomiasis 1D51-1F53 Phase 1 [2]
3 Investigative Drug(s) Metabolized by This DME
Drug Name Drug ID Indication ICD 11 Highest Status REF
2-chloro-5-nitro-N-phenylbenzamide DMUGQIV Discovery agent N.A. Investigative [3]
CL-205086 DMB6XUY Intestinal amebiasis 1A36 Investigative [2]
Nitroimidazole DMMY2S5 Trypanosomiasis 1D51-1F53 Investigative [2]

References

1 Identification and characterization of SnrA, an inducible oxygen-insensitive nitroreductase in Salmonella enterica serovar Typhimurium TA1535. Mutat Res. 2002 Oct 31;508(1-2):59-70.
2 Delamanid is not metabolized by Salmonella or human nitroreductases: a possible mechanism for the lack of mutagenicity. Regul Toxicol Pharmacol. 2017 Mar;84:1-8.
3 Effects of bacterial and presystemic nitroreductase metabolism of 2-chloro-5-nitro-N-phenylbenzamide on its mutagenicity and bioavailability. Chem Biol Interact. 2012 Apr 15;197(1):16-22.