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Title: The crystal structure of human dopamine β-hydroxylase at 2.9 Å resolution

Journal Article · · Science Advances

The norepinephrine pathway is believed to modulate behavioral and physiological processes, such as mood, overall arousal, and attention. Furthermore, abnormalities in the pathway have been linked to numerous diseases, for example hypertension, depression, anxiety, Parkinson’s disease, schizophrenia, Alzheimer’s disease, attention deficit hyperactivity disorder, and cocaine dependence. We report the crystal structure of human dopamine β-hydroxylase, which is the enzyme converting dopamine to norepinephrine. The structure of the DOMON (dopamine β-monooxygenase N-terminal) domain, also found in >1600 other proteins, reveals a possible metal-binding site and a ligand-binding pocket. The catalytic core structure shows two different conformations: an open active site, as also seen in another member of this enzyme family [the peptidylglycine α-hydroxylating (and α-amidating) monooxygenase], and a closed active site structure, in which the two copper-binding sites are only 4 to 5 Å apart, in what might be a coupled binuclear copper site. The dimerization domain adopts a conformation that bears no resemblance to any other known protein structure. The structure provides new molecular insights into the numerous devastating disorders of both physiological and neurological origins associated with the dopamine system.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC); Danish Agency for Science, Technology and Innovation; Wellcome Trust; European Commission (EC)
Grant/Contract Number:
MR/N00065X/1; 075491/Z/04
OSTI ID:
1251208
Journal Information:
Science Advances, Vol. 2, Issue 4; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 63 works
Citation information provided by
Web of Science

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Cited By (13)

Structure of formylglycine-generating enzyme in complex with copper and a substrate reveals an acidic pocket for binding and activation of molecular oxygen text January 2019
MTF1, a classic metal sensing transcription factor, promotes myogenesis in response to copper journal June 2019
Dopamine, Oxidative Stress and Protein–Quinone Modifications in Parkinson's and Other Neurodegenerative Diseases journal May 2019
Structure of formylglycine-generating enzyme in complex with copper and a substrate reveals an acidic pocket for binding and activation of molecular oxygen journal January 2019
Dynamic changes in copper homeostasis and post-transcriptional regulation of Atp7a during myogenic differentiation journal January 2018
A Discrete Self-Assembled Pd 12 Triangular Orthobicupola Cage and its Use for Intramolecular Cycloaddition journal August 2018
Dopamin, oxidativer Stress und Protein‐Chinonmodifikationen bei Parkinson und anderen neurodegenerativen Erkrankungen journal March 2019
Formation of Unstable and very Reactive Chemical Species Catalyzed by Metalloenzymes: A Mechanistic Overview journal July 2019
Effects of copper occupancy on the conformational landscape of peptidylglycine α-hydroxylating monooxygenase journal June 2018
Dopamine beta‐hydroxylase and its genetic variants in human health and disease journal October 2019
Catalytic Intramolecular Cycloaddition Reactions by Using a Discrete Molecular Architecture journal October 2017
Activation of dioxygen by copper metalloproteins and insights from model complexes journal December 2016
A single nucleotide polymorphism in dopamine beta hydroxylase (rs6271(C>T)) is over-represented in inflammatory bowel disease patients and reduces circulating enzyme journal February 2019

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