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Author Yang, S. F.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword BASIC BIOLOGICAL SCIENCES ♦ PEROXIDASES ♦ ENZYME ACTIVITY ♦ SULFITES ♦ METABOLISM ♦ TRYPTOPHAN ♦ DECOMPOSITION ♦ AEROBIC CONDITIONS ♦ CARBON 14 COMPOUNDS ♦ CATIONS ♦ MANGANESE COMPOUNDS ♦ PH VALUE ♦ SUPEROXIDE DISMUTASE ♦ TRACER TECHNIQUES ♦ AMINO ACIDS ♦ AROMATICS ♦ AZAARENES ♦ AZOLES ♦ CARBOXYLIC ACIDS ♦ CHARGED PARTICLES ♦ CHEMICAL REACTIONS ♦ ENZYMES ♦ HETEROCYCLIC ACIDS ♦ HETEROCYCLIC COMPOUNDS ♦ INDOLES ♦ IONS ♦ ISOTOPE APPLICATIONS ♦ LABELLED COMPOUNDS ♦ ORGANIC ACIDS ♦ ORGANIC COMPOUNDS ♦ ORGANIC NITROGEN COMPOUNDS ♦ OXIDOREDUCTASES ♦ OXYGEN COMPOUNDS ♦ PYRROLES ♦ SULFUR COMPOUNDS ♦ TRANSITION ELEMENT COMPOUNDS ♦ Metabolism- Tracer Techniques
Abstract Tryptophan was rapidly destroyed aerobically in the presence of Mn/sup 2 +/ and sulfite. The rate of destruction was greatly increased when horseradish peroxidase was added. The optimal pH for the reaction was 8.0. The destruction of tryptophan was dependent on the aerobic oxidation of sulfite. Superoxide dismutase inhibited sulfite oxidation and thus inhibited the tryptophan destruction. Tracer studies using /sup 14/C indicate that tryptophan is converted into at least 4 products.
Educational Use Research
Learning Resource Type Article
Publisher Date 1973-01-01
Publisher Place United States
Journal Environ. Res.
Volume Number 6
Organization Univ. of California, Davis


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