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Publications

Affichage des publications 81 à 90 sur 139 au total

Biologie structurale

Structural study of the function of Candida Albicans Pif1

Pif1 helicases, conserved in eukaryotes, are involved in maintaining genome stability in both the nucleus and mitochondria. Here, we report the crystal structure of a truncated Candida Albicans Pif1 (CaP-if1 368À883) in complex with ssDNA and an ATP…

Ke-Yu Lu, Ben-Ge Xin, Teng Zhang, Na-Nv Liu, Dan Li, Stephane Rety, Xu-Guang Xi

Biochemical and Biophysical Research Communications -

Bactériologie

Structural and functional studies of SF1B Pif1 from Thermus oshimai reveal dimerization-induced helicase inhibition

Pif1 is an SF1B helicase that is evolutionarily conserved from bacteria to humans and plays multiple roles in maintaining genome stability in both nucleus and mitochondria. Though highly conserved, Pif1 family harbors a large mechanistic diversity…

Yang-Xue Dai, Wei-Fei Chen, Na-Nv Liu, Fang-Yuan Teng, Hai-Lei Guo, Xi-Miao Hou, Shuo-Xing Dou, Stephane Rety, Xu-Guang Xi

Nucleic Acids Research -

Bio-Informatique, Biologie Systémique

A New Strategy for Atomic Flexible Fitting in Cryo-EM Maps by Molecular Dynamics with Excited Normal Modes (MDeNM-EMfit)

Previous studies demonstrated the efficiency of the Molecular Dynamics with excited Normal Modes (MDeNM) method on the characterization of large structural changes at a low computational cost. We present here MDeNM-EMfit, an extension of the…

Mauricio G S Costa, Charline Fagnen, Catherine Vénien-Bryan, David Perahia

Journal of Chemical Information and Modeling -

Biophysique

Gold nanorods-based oligonucleotides carrier quantitative characterisation

Gold nanorods (GNRs) are attracting a lot of attention due to their extraordinary optical properties, and potential use for medical applications. The issue of the attachment of double stranded oligonucleotides onto GNR surfaces is crucial for the…

Henryk Laszewski, Bruno Palpant, Malcolm Buckle, Claude Nogues

2020 International Conference Laser Optics (ICLO) -

Bactériologie

Cytosolic Crowding Drives the Dynamics of Both Genome and Cytosol in Escherichia coli Challenged with Sub-lethal Antibiotic Treatments

In contrast to their molecular mode of action, the system-level effect of antibiotics on cells is only beginning to be quantified. Molecular crowding is expected to be a relevant global regulator, which we explore here through the dynamic response…

Michal Wlodarski, Leonardo Mancini, Bianca Raciti, Bianca Sclavi, Marco Cosentino Lagomarsino, Pietro Cicuta

iScience -

Agrégats Moléculaires et Atomiques

New Structural insights into Kir channel gating from molecular simulations, HDX-MS and functional studies

Inward rectifier potassium (Kir) channels play diverse and important roles in shaping action potentials in biological membranes. An increasing number of diseases are now known to be directly associated with abnormal Kir function. However, the gating…

Charline Fagnen, Ludovic Bannwarth, Iman Oubella, Eric Forest, Rita de Zorzi, Aline de Araujo, Yasmina Mhoumadi, Saïd Bendahhou, David Perahia, Catherine Vénien-Bryan

Scientific Reports -

Alimentation et Nutrition

Selective ultrasound‐assisted aqueous extraction of polyphenols from pomegranate peels and seeds

In this study, the optimization of ultrasound‐assisted aqueous extraction of polyphenols from pomegranate peels and seeds was conducted. A 10‐min sonication (tu ) pre‐treatment (≈60 W) accelerated the extraction kinetics and intensified the…

Hiba Rajha, Mohamed Koubaa, Nadia Boussetta, Richard G. Maroun, Nicolas Louka, Nikolaï Lebovka, Eugene Vorobiev

Journal of Food Processing and Preservation -

Biochimie, Biologie Moléculaire

Overview of the Nucleic-Acid Binding Properties of the HIV-1 Nucleocapsid Protein in Its Different Maturation States

HIV-1 Gag polyprotein orchestrates the assembly of viral particles. Its C-terminus consists of the nucleocapsid (NC) domain that interacts with nucleic acids, and p1 and p6, two unstructured regions, p6 containing the motifs to bind ALIX, the…

Assia Mouhand, Marco Pasi, Marjorie Catala, Loussiné Zargarian, Anissa Belfetmi, Pierre Barraud, Olivier Mauffret, Carine Tisné

Viruses -