Davide Demurtas

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Bending modes of DNA directly addressed by cryo-electron microscopy of DNA minicircles

Davide Demurtas, John Maddocks, Arnaud Amzallag

We use cryo-electron microscopy (cryo-EM) to study the 3D shapes of 94-bp-long DNA minicircles and address the question of whether cyclization of such short DNA molecules necessitates the formation of sharp, localized kinks in DNA or whether the necessary ...

Oxford University Press2009

KAP1 is an antiparallel dimer with a functional asymmetry

Didier Trono, Matteo Dal Peraro, Beat Fierz, Davide Demurtas, Louise Catherine Bryan, Maria Josefina Marcaida Lopez, Giulia Fonti, Pierre-Yves Joseph Laurent Helleboid, Alexandra Styliani Kalantzi

KAP1 (KRAB domain-associated protein 1) plays a fundamental role in regulating gene expression in mammalian cells by recruiting different transcription factors and altering the chromatin state. In doing so, KAP1 acts both as a platform for macromolecular i ...

Life Science Alliance, LLC2019

Spatial SPION Localization in Liposome Membranes

Alke Fink, Davide Demurtas

Nanocarriers, including liposomes, offer great opportunities for targeted and controlled therapy. The development in this field has led to a large panel of drug delivery systems, which can be classified into 3 different nanovector generations. However, the ...

Institute of Electrical and Electronics Engineers2013

Multifunctional Lipid/Quantum-Dots Hybrid Nanocontainers for Controlled Targeting of Live Cells

Horst Arthur Vogel, Davide Demurtas, Christophe Danelon, Pierre-Yves Bolinger, Gopakumar Gopalakrishnan, Paulina Izewska, Isabelle Geissbühler Bärlocher

In this communication, we report on an interesting observation of wide-ranging potential for cellular imaging and manipulation: Hydrophobic QDs can be easily incorporated into the bilayer membrane of lipid vesicles. Such lipid/QD nanocontainer hybrid vesic ...

Wiley-VCH Verlag GmbH2006

Assessing the Role of Poly(ethylehe glycol-bl-propylene sulfide) (PEG-PPS) Block Copolymers in the Preparation of Carbon Nanotube Biocompatible Dispersions

Davide Demurtas, Jeffrey Alan Hubbell

Amphiphilic block copolymers based on hydrophobic polysulfides (poly(propylene sulfide), PPS) and hydrophilic polyethers (poly(ethylene glycol), PEG) have been used to solubilize and disperse single-walled carbon nanotubes (SWNTs). The obtained highly conc ...

American Chemical Society2010

RAIN: machine learning-based identification for HIV-1 bNAbs

Davide Demurtas

Broadly neutralizing antibodies (bNAbs) are promising candidates for the treatment and prevention of HIV-1 infections. Despite their critical importance, automatic detection of HIV-1 bNAbs from immune repertoires is still lacking. Here, we develop a straig ...

Nature Research2024

Native Architecture of the Centriole Proximal Region Reveals Features Underlying Its 9-Fold Radial Symmetry

Pierre Gönczy, Davide Demurtas, Paul Guichard, Aitana Neves da Silva

Centrioles are cylindrical microtubule-based structures whose assembly is critical for the formation of cilia, flagella, and centrosomes. The centriole proximal region harbors a cartwheel that dictates the 9-fold symmetry of centrioles. Although the cartwh ...

2013

Amyloid-beta oligomerization is associated with the generation of a typical peptide fragment fingerprint

Davide Demurtas, Adrian Schmid, Cyntia De Piano, Marc Moniatte, Christophe Fuerer

Amyloid-beta (A beta) peptide oligomerization plays a central role in the pathogenesis of Alzheimer's disease (AD), and A beta oligomers are collectively considered an appealing therapeutic target for the treatment of AD. However, the molecular mechanisms ...

Elsevier Science Inc2016

A highly potent antibody effective against SARS-CoV-2 variants of concern

Didier Trono, Priscilla Turelli, Florence Pojer, Davide Demurtas, Kelvin Ka Ching Lau, Charlène Mireille Raymonde Raclot, Jérémy Campos

Control of the ongoing SARS-CoV-2 pandemic is endangered by the emergence of viral variants with increased transmission efficiency, resistance to marketed therapeutic antibodies, and reduced sensitivity to vaccine-induced immunity. Here, we screen B cells ...

2021

Tumor-associated factors are enriched in lymphatic exudate compared to plasma in metastatic melanoma patients

Melody Swartz, Romain Hamelin, Davide Demurtas, Alexandre Harari, Lambert Charles François Potin, Patricia Corthésy Henrioud

Liquid biopsies allow monitoring of cancer progression and detection of relapse, but reliable biomarkers in melanoma are lacking. Because secreted factors preferentially drain to lymphatic vessels before dilution in the blood, we hypothesized that lymph sh ...

ROCKEFELLER UNIV PRESS2019