Nuclear Magnetic Resonance Spectroscopy ...
Document type :
Article dans une revue scientifique
DOI :
Permalink :
Title :
Nuclear Magnetic Resonance Spectroscopy Characterization of Interaction of Tau with DNA and Its Regulation by Phosphorylation
Author(s) :
Qi, Haoling [Auteur]
Unité de Glycobiologie Structurale et Fonctionnelle - UMR 8576 [UGSF]
Cantrelle, Francois-Xavier [Auteur]
Unité de Glycobiologie Structurale et Fonctionnelle (UGSF) - UMR 8576
Benhelli-Mokrani, Houda [Auteur]
Homéostasie cellulaire et cancer - Reprogrammation des réponses biologiques et thérapies alternatives [U1007]
Nocca Smet, Caroline [Auteur]
Unité de Glycobiologie Structurale et Fonctionnelle (UGSF) - UMR 8576
Buee, Luc [Auteur]
Centre de Recherche Jean-Pierre AUBERT Neurosciences et Cancer - U837 [JPArc]
Lippens, Guy [Auteur]
Unité de Glycobiologie Structurale et Fonctionnelle - UMR 8576 [UGSF]
Bonnefoy, Eliette [Auteur]
Homéostasie cellulaire et cancer - Reprogrammation des réponses biologiques et thérapies alternatives [U1007]
Galas, Marie-Christine [Auteur]
Centre de Recherche Jean-Pierre AUBERT Neurosciences et Cancer - U837 [JPArc]
Landrieu, Isabelle [Auteur]
Unité de Glycobiologie Structurale et Fonctionnelle (UGSF) - UMR 8576
Unité de Glycobiologie Structurale et Fonctionnelle - UMR 8576 [UGSF]
Cantrelle, Francois-Xavier [Auteur]

Unité de Glycobiologie Structurale et Fonctionnelle (UGSF) - UMR 8576
Benhelli-Mokrani, Houda [Auteur]
Homéostasie cellulaire et cancer - Reprogrammation des réponses biologiques et thérapies alternatives [U1007]
Nocca Smet, Caroline [Auteur]

Unité de Glycobiologie Structurale et Fonctionnelle (UGSF) - UMR 8576
Buee, Luc [Auteur]

Centre de Recherche Jean-Pierre AUBERT Neurosciences et Cancer - U837 [JPArc]
Lippens, Guy [Auteur]
Unité de Glycobiologie Structurale et Fonctionnelle - UMR 8576 [UGSF]
Bonnefoy, Eliette [Auteur]
Homéostasie cellulaire et cancer - Reprogrammation des réponses biologiques et thérapies alternatives [U1007]
Galas, Marie-Christine [Auteur]

Centre de Recherche Jean-Pierre AUBERT Neurosciences et Cancer - U837 [JPArc]
Landrieu, Isabelle [Auteur]

Unité de Glycobiologie Structurale et Fonctionnelle (UGSF) - UMR 8576
Journal title :
Biochemistry
Volume number :
54
Pages :
1525-1533
Publication date :
2015-02-24
ISSN :
0006-2960
English keyword(s) :
Peptides and proteins
Genetics
Biopolymers
Cell and molecular biology
Post-translational modification
Genetics
Biopolymers
Cell and molecular biology
Post-translational modification
HAL domain(s) :
Chimie/Chimie théorique et/ou physique
English abstract : [en]
The capacity of endogenous Tau to bind DNA has been recently identified in neurons under physiological or oxidative stress conditions. Characterization of the protein domains involved in Tau–DNA complex formation is an ...
Show more >The capacity of endogenous Tau to bind DNA has been recently identified in neurons under physiological or oxidative stress conditions. Characterization of the protein domains involved in Tau–DNA complex formation is an essential first step in clarifying the contribution of Tau–DNA interactions to neurological biological processes. To identify the amino acid residues involved in the interaction of Tau with oligonucleotides, we have characterized a Tau–DNA complex using nuclear magnetic resonance spectroscopy. Interaction of an AT-rich or GC-rich 22 bp oligonucleotide with Tau showed multiple points of anchoring along the intrinsically disordered Tau protein. The main sites of contact characterized here correspond to the second half of the proline-rich domain (PRD) of Tau and the R2 repeat in the microtubule binding domain. This latter interaction site includes the PHF6* sequence known to govern Tau aggregation. The characterization was pursued by studying the binding of phosphorylated forms of Tau, displaying multiple phosphorylation sites mainly in the PRD, to the same oligonucleotide. No interaction of phospho-Tau with the oligonucleotide was detected, suggesting that pathological Tau phosphorylation could affect the physiological function of Tau mediated by DNA binding.Show less >
Show more >The capacity of endogenous Tau to bind DNA has been recently identified in neurons under physiological or oxidative stress conditions. Characterization of the protein domains involved in Tau–DNA complex formation is an essential first step in clarifying the contribution of Tau–DNA interactions to neurological biological processes. To identify the amino acid residues involved in the interaction of Tau with oligonucleotides, we have characterized a Tau–DNA complex using nuclear magnetic resonance spectroscopy. Interaction of an AT-rich or GC-rich 22 bp oligonucleotide with Tau showed multiple points of anchoring along the intrinsically disordered Tau protein. The main sites of contact characterized here correspond to the second half of the proline-rich domain (PRD) of Tau and the R2 repeat in the microtubule binding domain. This latter interaction site includes the PHF6* sequence known to govern Tau aggregation. The characterization was pursued by studying the binding of phosphorylated forms of Tau, displaying multiple phosphorylation sites mainly in the PRD, to the same oligonucleotide. No interaction of phospho-Tau with the oligonucleotide was detected, suggesting that pathological Tau phosphorylation could affect the physiological function of Tau mediated by DNA binding.Show less >
Language :
Anglais
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
CHU Lille
CNRS
Université de Lille
Inserm
CNRS
Université de Lille
Inserm
Collections :
Research team(s) :
RMN et interactions moléculaires
Submission date :
2020-02-12T15:44:57Z
2021-07-13T13:26:27Z
2021-07-13T13:26:27Z