Document Detail


NADH oxidation by manganese peroxidase with or without alpha-hydroxy acid.
MedLine Citation:
PMID:  12036041     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
NADH oxidation by manganese peroxidase (MnP) was done in a reaction mixture including either alpha-hydroxy acid or acetate. The oxidation in the former reaction mixture was inhibited by a catalase and was accelerated by exogenous H2O2, while the oxidation in the latter reaction mixture was inhibited by a superoxide dismutase and was not accelerated by the exogenous H2O2. These results indicated that there are significant differences between the two reaction systems, particularly, in the active oxygen species involved in the reactions. Additionally, the experiment of MnP reduction with Mn(II) suggests that MnP has a separate catalytic activity other than an oxidation of Mn(II) to Mn(III) in the reaction mixture including acetate.
Authors:
Tetsuya Deguchi; Masaaki Matsubara; Tomoaki Nishida
Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Bioscience, biotechnology, and biochemistry     Volume:  66     ISSN:  0916-8451     ISO Abbreviation:  Biosci. Biotechnol. Biochem.     Publication Date:  2002 Apr 
Date Detail:
Created Date:  2002-05-30     Completed Date:  2002-11-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9205717     Medline TA:  Biosci Biotechnol Biochem     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  717-21     Citation Subset:  IM    
Affiliation:
Chemical and Environmental Technology Laboratory, Kobe Steel, Ltd., Japan. te-deguchi@rd.kcrl.kobelco.co.jp
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MeSH Terms
Descriptor/Qualifier:
Acetates / pharmacology
Fungi / enzymology*
Hydrogen Peroxide / pharmacology
Hydroxy Acids / pharmacology*
Kinetics
Malates / pharmacology
NAD / metabolism*
Oxidation-Reduction
Peroxidases / metabolism*
Chemical
Reg. No./Substance:
0/Acetates; 0/Hydroxy Acids; 0/Malates; 53-84-9/NAD; 7722-84-1/Hydrogen Peroxide; EC 1.11.1.-/Peroxidases; EC 1.11.1.13/manganese peroxidase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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