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Membrane proteins remain challenging targets for structural biology, despite much effort, as their native environment is heterogeneous and complex. Most methods rely on detergents to extract membrane proteins from their native environment, but this removal can significa...

During bacterial chromosomal replication, unwinding of double stranded DNA is performed by the hexameric helicase DnaB. In Escherichia coli, the positioning of DnaB hexamers onto replication forks in the 5’to 3’ direction is dedicated by helicase loader. DnaB then inter...

The plant purple acid phosphatase PPD1 forms a novel hexameric structure with a fibronectin III-like domain that is involved in DNA selectivity, binding and activation. The degradation of DNA by PPD1 implies a role for PPD1 in plant growth and repair and in pathogen def...

International audience; The type 2 DNA topoisomerases (Top2) are conserved enzymes and biomarkers for cell proliferation. The catalytic activities of the human isoform Top2α are essential for the regulation of DNA topology during DNA replication, transcription, and chro...

<jats:title>Abstract</jats:title><jats:p>The application of small angle X-ray scattering (SAXS) to the structural characterization of transmembrane proteins (MPs) in detergent solutions has become a routine procedure at the most synchrotron BioSAXS beamlines around the ...

The family of polypeptide N-acetylgalactosamine (GalNAc) transferases (GalNAc-Ts) orchestrates the initiating step of mucin-type protein O-glycosylation by transfer of GalNAc moieties to serine and threonine residues in proteins. Deficiencies and dysregulation of GalNAc...

The epidermal growth factor receptor (EGFR) represents one of the most common target proteins in anti-cancer therapy. To directly examine the structural and dynamical properties of EGFR activation by the epidermal growth factor (EGF) in native membranes, we have develop...

Assembly and disassembly of protein-protein complexes needs to be dynamically controlled and phosphoswitches based upon linear motifs are crucial in this process. Extracellular signal regulated kinase 2 (ERK2) recognizes a linear binding motif at the C-terminal tail (CT...

<jats:title>Abstract</jats:title><jats:p>Sphingolipids are essential components of cellular membranes and defects in their synthesis or degradation cause severe human diseases. The efficient degradation of sphingolipids in the lysosome requires lipid-binding saposin pro...