Difference between revisions of "Oxidation of Acetaminophen"

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[[File:Acetaminophen.png|200px|thumb|center|acetaminophen]]
 
[[File:Acetaminophen.png|200px|thumb|center|acetaminophen]]
==Current HRP/H2O2/APAP Radical Data==
+
==Summary of ESR Data==
 +
{| border=1
 +
|+Summary of Hyperfine Coupling
 +
|-bgcolor=gray
 +
!Nucle (# of spins)!!hyperfine!!hyperfine!!hyperfine
 +
|-
 +
|Ref -->  ||align=center|West, 1984||align=center|Fischer, 1986||align=center|Sturgeon, not published
 +
|-
 +
|Conditions ||align=center|fast-flow, pH 7.5||align=center|fast-flow, pH 7.5||align=center|immoblized-Enzyme, pH 5/dioxane (50/50)
 +
|-
 +
|Spectrum ||unresolved triplet||high res multiline||med res multiline
 +
|-
 +
| N (1) || align=center|nr|| align=center|0.81 G ||align=center|1.68 G
 +
|-
 +
| H, on nitrogen (1) || align=center|nr || align=center|1.35 G ||align=center|0.96 G
 +
|-
 +
| H, ortho (2) || align=center|5.2 G|| align=center|5.11 G || align=center|5.19 G
 +
|-
 +
| H, meta (2) ||align=center| nr || align=center|0.64 G|| align=center|0.76 G
 +
|-
 +
| H, methyl (3) ||align=center|nr || align=center|1.01 G ||align=center|nr
 +
|}
  
 +
nr = not reported or not resolved
  
 
==HRP/H2O2==
 
==HRP/H2O2==
 +
{|
 +
|[[File:APAP rad HRP.png|200px|thumb|center|West 1984, Fischer,1985]]
 +
||[[File:Screen Shot 2018-07-15 at 7.38.54 AM.png|230px|thumb|center|Fischer 1986]]
 +
||[[File:WIU FigX.jpg|230px|thumb|center|Sturgeon, unpublished]]
 +
 +
|}
 +
 +
:'''ACETAMINOPHEN - ENZYMATIC FORMATION OF A TRANSIENT PHENOXYL FREE-RADICAL'''
 +
:West, PR, Harman, LS, Josephy, PD, Mason, RP
 +
:[[Media:West 1984.pdf|''Biochemical pharmacology'', '''1984''', ''Vol.33(18)'', pp.2933-2936.]]
 +
 
:'''Free-Radical Metabolites of Acetaminophen and a Dimethylated Derivative'''
 
:'''Free-Radical Metabolites of Acetaminophen and a Dimethylated Derivative'''
 
:Volker Fischer, Paul R. West, Laura S. Harman, and Ronald P. Mason.
 
:Volker Fischer, Paul R. West, Laura S. Harman, and Ronald P. Mason.
:''Environmental Health Perspectives'', '''1985''', ''64'', pp. 127-137.
+
:[[Media:Envhper00447-0129.pdf|''Environmental Health Perspectives'', '''1985''', ''64'', pp. 127-137.]]
:[[Media:Envhper00447-0129.pdf|here]]
 
  
:'''ACETAMINOPHEN - ENZYMATIC FORMATION OF A TRANSIENT PHENOXYL FREE-RADICAL
+
:'''Direct electron spin resonance detection of free radical intermediates during the peroxidase catalyzed oxidation of phenacetin metabolites.'''
:West, PR, Harman, LS, Josephy, PD, Mason, RP
+
:Volker Fischer, Laura S. Harman, Paul R. West, and Ronald P. Mason.
:Biochemical pharmacology , 1984, Vol.33(18), p.2933-2936
+
:[[Media:APAP radical mason.pdf|''Chem.-Biol. Interactions'', '''1986''', ''Vol 60'', PP. 115-127.]]
:[[Media:West 1984.pdf|here]]
 
[[File:APAP rad HRP.png|200px|thumb|center|West 1984]]
 
  
 
==HRP/H2O2/Acetaminophen analog==
 
==HRP/H2O2/Acetaminophen analog==

Latest revision as of 01:00, 16 July 2018

acetaminophen

Summary of ESR Data

Summary of Hyperfine Coupling
Nucle (# of spins) hyperfine hyperfine hyperfine
Ref --> West, 1984 Fischer, 1986 Sturgeon, not published
Conditions fast-flow, pH 7.5 fast-flow, pH 7.5 immoblized-Enzyme, pH 5/dioxane (50/50)
Spectrum unresolved triplet high res multiline med res multiline
N (1) nr 0.81 G 1.68 G
H, on nitrogen (1) nr 1.35 G 0.96 G
H, ortho (2) 5.2 G 5.11 G 5.19 G
H, meta (2) nr 0.64 G 0.76 G
H, methyl (3) nr 1.01 G nr

nr = not reported or not resolved

HRP/H2O2

West 1984, Fischer,1985
Fischer 1986
Sturgeon, unpublished
ACETAMINOPHEN - ENZYMATIC FORMATION OF A TRANSIENT PHENOXYL FREE-RADICAL
West, PR, Harman, LS, Josephy, PD, Mason, RP
Biochemical pharmacology, 1984, Vol.33(18), pp.2933-2936.
Free-Radical Metabolites of Acetaminophen and a Dimethylated Derivative
Volker Fischer, Paul R. West, Laura S. Harman, and Ronald P. Mason.
Environmental Health Perspectives, 1985, 64, pp. 127-137.
Direct electron spin resonance detection of free radical intermediates during the peroxidase catalyzed oxidation of phenacetin metabolites.
Volker Fischer, Laura S. Harman, Paul R. West, and Ronald P. Mason.
Chem.-Biol. Interactions, 1986, Vol 60, PP. 115-127.

HRP/H2O2/Acetaminophen analog

Stable Free Radical and Benzoquinone Imine Metabolites of an Acetaminophen Analogue
Volker Fischer and Ronald P. Mason.
Journal of Biological Chemistry, 1984, 259(16), pp. 10284-10288.
here
Fischer, 1984
Fischer, 1984

with GSH

Media:J. Biol. Chem.-1990-Ramakrishna Rao-844-7.pdf

Oxidation Product Analysis

Identification of Acetaminophen Polymerization Products Catalyzed by Horseradish Peroxidase.
David W. Potter$, Dwight W. Miller, and Jack A. Hinson
Journal of Biological Chemistry, 1985 "260(22), pp 12174-12180.
here
Fischer, 1984

Related Phenacetin

http://www.ncbi.nlm.nih.gov/pubmed/3024853