Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Query: EC:3.4.23.17 (
PCE
)
1,301
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
Reduction rate constants of the chlorinated ethylenes cis-1,2-dichloroethylene (cis-DCE), trichloroethylene (TCE), and tetrachloroethylene (
PCE
) reacted with flavin mononucleotide hydroquinone (
FMNH2
) under anoxic conditions were investigated.
FMNH2
was produced in methanol solvent by the photoreduction of FMN. In aqueous solution, FMN was not fully reduced to
FMNH2
but instead yielded the semiquinone radical FMNH*. However, when FMN was anchored to nanocrystalline TiO2, band gap irradiation resulted in electron transfer from the TiO2 conduction band to FMN, thus yielding
FMNH2
. The
FMNH2
generated in aqueous solution on the TiO2 surface was a stronger reductant toward chlorinated ethylenes, relative to
FMNH2
in solution. Furthermore, by combining the reactivity of the TiO2 conduction band electrons [TiO2(e-(CB)] with
FMNH2
, reduction rate constants for the chlorinated ethylenes increased by 2 orders of magnitude relative to
FMNH2
alone. The results show how biological molecules such as
FMNH2
could have significant effects toward the remediation of organic pollutants.
...
PMID:Controlling the reactivity of chlorinated ethylenes with flavin mononucleotide hydroquinone. 1935 Sep 40
