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Paul F. Fitzpatrick

Researcher at University of Texas Health Science Center at San Antonio

Publications -  195
Citations -  7045

Paul F. Fitzpatrick is an academic researcher from University of Texas Health Science Center at San Antonio. The author has contributed to research in topics: Tyrosine hydroxylase & Phenylalanine hydroxylase. The author has an hindex of 42, co-authored 192 publications receiving 6514 citations. Previous affiliations of Paul F. Fitzpatrick include Brookhaven National Laboratory & Texas A&M University.

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The Amino Acid Specificity for Activation of Phenylalanine Hydroxylase Matches the Specificity for Stabilization of Regulatory Domain Dimers

TL;DR: The results support a model in which allosteric activation of phenylalanine hydroxylase is linked to dimerization of regulatory domains.
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Kinetic isotope effects on aromatic and benzylic hydroxylation by Chromobacterium violaceum phenylalanine hydroxylase as probes of chemical mechanism and reactivity.

TL;DR: Evidence is provided that the reactivities of the prokaryotic and eukaryotic hydroxylases are similar and the reactivity of the iron center for the family of aromatic amino acid hydroxyases is defined.
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Mechanism of the Flavoprotein L-Hydroxynicotine Oxidase: Kinetic Mechanism, Substrate Specificity, Reaction Product, and Roles of Active-Site Residues.

TL;DR: Analysis of the product of the enzyme from Arthrobacter nicotinovorans by nuclear magnetic resonance and continuous-flow mass spectrometry establishes that the enzyme catalyzes the oxidation of the pyrrolidine carbon-nitrogen bond, the expected reaction for a monoamine oxidase, and that hydrolysis of the amine to form 6-hydroxypseudooxynicotine is nonenzymatic.
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Nitroalkane oxidase: Structure and mechanism.

TL;DR: A combination of solution and structural analyses have provided a detailed understanding of the mechanism of this enzyme.