1997
DOI: 10.1002/ange.19971091829
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NADH‐abhängige Halogenasen sind wahrscheinlich eher an der Biosynthese von Halogenmetaboliten beteiligt als Haloperoxidasen

Abstract: NADH statt Wasserstoffperoxid benötigen zwei neu identifizierte, substratspezifische und regioselektive Halogenasen. Beide wurden aus einem Pyrrolnitrin produzierenden Pseudomonas‐fluorescens‐Stamm isoliert; eine von ihnen katalysiert die Chlorierung von L‐Tryptophan zu 7‐Chlor‐L‐tryptophan 1.magnified image

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Cited by 14 publications
(13 citation statements)
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“…After incubation at 30 8C for 6 h, the reaction was stopped as described previously and analyzed by HPLC. [12] Enrichment of PrnC: P. fluorescens BL915DORF1-4 harboring the monodechloroaminopyrrolnitrin 3-halogenase gene on a plasmid [pPEH14(prnC)] was used. [11] Cell incubation and preparation of the crude extract was performed as described for PrnA.…”
Section: Methodsmentioning
confidence: 99%
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“…After incubation at 30 8C for 6 h, the reaction was stopped as described previously and analyzed by HPLC. [12] Enrichment of PrnC: P. fluorescens BL915DORF1-4 harboring the monodechloroaminopyrrolnitrin 3-halogenase gene on a plasmid [pPEH14(prnC)] was used. [11] Cell incubation and preparation of the crude extract was performed as described for PrnA.…”
Section: Methodsmentioning
confidence: 99%
“…[9±11] During the elucidation of the pyrrolnitrin biosynthesis, the existence of halogenating enzymes, which require NADH for the catalysis of halogenation reactions, was detected. [12] One of the two enzymes involved in pyrrolnitrin biosynthesis catalyzes the regioselective chlorination of tryptophan 1 to 7-chlorotryptophan 2 (see Scheme 1). This tryptophan 7-halogenase (Trp-7-Hal), PrnA, was now purified and partially characterized.…”
mentioning
confidence: 99%
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“…Die erste Halogenase, für die eine regioselektive Katalyse der Chlorierung oder Bromierung von Tryptophan nachgewiesen wurde, war die Tryptophan-7-Halogenase PrnA, die an der Pyrrolnitrinbiosynthese beteiligt ist. [7] PrnA wurde als eine Flavin-abhängige Halogenase identifiziert, die eine Flavin-Reduktase als zweite Enzymkomponente benö-tigt. [8] Diese Flavin-Reduktase produziert FADH 2 aus Flavinadenindinukleotid (FAD) und reduziertem Nicotinamidadenindinukleotid (NADH; Schema 1).…”
Section: Professor Franz Lingens Zum 85 Geburtstag Gewidmetunclassified