Publications associées à Anfinsen's dogma

Discontinuous Galerkin methods for Fisher-Kolmogorov equation with application to a-synuclein spreading in Parkinson's disease

This spreading of prion proteins is at the basis of brain neurodegeneration. This paper deals with the numerical modelling of the misfolding process of a-synuclein in Parkinson's disease. We introduce and analyse a discontinuous Galerkin method for the sem ...

Elsevier Science Sa2023

Experimental Milestones in the Discovery of Molecular Chaperones as Polypeptide Unfolding Enzymes

Andrija Finka, Pierre Goloubinoff

Molecular chaperones control the cellular folding, assembly, unfolding, disassembly, translocation, activation, inactivation, disaggregation, and degradation of proteins. In 1989, groundbreaking experiments demonstrated that a purified chaperone can bind a ...

Annual Reviews2016

Gas-phase probes of kinetically trapped peptides

Liudmila Voronina

Gas-phase techniques are promising for studying intrinsically disordered peptides and proteins, as they can be implemented in a conformer-selective way. One of the issues that prevent them from finding a broader use is the question of to which extent the s ...

EPFL2016

Probing the Unfolded Configurations of a β-Hairpin Using Sketch-Map

Michele Ceriotti, Gareth Aneurin Tribello, Michele Parrinello

This work examines the conformational ensemble involved in beta-hairpin folding by means of advanced molecular dynamics simulations and dimensionality reduction. A fully atomistic description of the protein and the surrounding solvent molecules is used, an ...

2015

Spectroscopic studies of kinetically trapped conformations in the gas phase: the case of triply protonated bradykinin

Thomas Rizzo, Liudmila Voronina

Understanding the relation between the gas-phase structure of biological molecules and their solution-phase structure is important when attempting to use gas-phase techniques to address biologically relevant questions. Directly after electrospray ionizatio ...

Royal Soc Chemistry2015

Microhydration Effects on the Encapsulation of Potassium Ion by Dibenzo-18-Crown-6

Thomas Rizzo, Oleg Boyarkine, Yoshiya Inokuchi

We have measured electronic and conformer-specific vibrational spectra of hydrated dibenzo-18-crown-6 (DB18C6) complexes with potassium ion, K+center dot DB18C6 center dot(H2O)(n) (n = 1-5), in a cold, 22-pole ion trap. We also present for comparison spect ...

American Chemical Society2014

Spectroscopic studies of peptide fragments produced by collision-induced dissociation

Oleg Aseev

Tandem mass spectrometry (MS/MS) combined with collision-induced dissociation (CID) is a key method for primary structure determination of peptides and proteins. Collisionally activated peptides undergo statistical dissociation, forming a series of backbon ...

EPFL2014

The effect of crowding and confinement: a comparison of Yfh1 stability in different environments

Paolo De Los Rios

Crowding and confinement can affect protein stability, favouring the more compact species amongst the folded and unfolded conformations. An unbiased assessment of the relative efficacy of crowded and confined environments has been hampered so far by the pa ...

Institute of Physics2013

Macromolecular Symmetric Assembly Prediction Using Swarm Intelligence Dynamic Modeling

Matteo Dal Peraro, Matteo Thomas Degiacomi

Proteins often assemble in multimeric complexes to perform a specific biologic function. However, trapping these high-order conformations is difficult experimentally. Therefore, predicting how proteins assemble using in silico techniques can be of great he ...

Cell Press2013

Synthèse, structure et propriétés physicochimiques des cyclosporines

Olivier Turpin

Cyclosporin is a cyclic undecapeptide useful as drug for organ transplantation due to its immunosuppressive properties. Ten years ago, an anti-viral activity was discovered, incompatible with immunosuppression. These two activities originate in the presenc ...

EPFL2004