Thomas Roret
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View article: Identification and Characterization of a New Thermophilic κ-Carrageenan Sulfatase
Identification and Characterization of a New Thermophilic κ-Carrageenan Sulfatase Open
Carrageenans are sulfated polysaccharides found in the cell wall of certain red seaweeds. They are widely used in the food industry for their gelling and stabilizing properties. In nature, carrageenans undergo enzymatic modification and de…
View article: Constrained Catalytic Itinerary of a Retaining 3,6‐Anhydro‐D‐Galactosidase, a Key Enzyme in Red Algal Cell Wall Degradation
Constrained Catalytic Itinerary of a Retaining 3,6‐Anhydro‐D‐Galactosidase, a Key Enzyme in Red Algal Cell Wall Degradation Open
The marine Bacteroidota Zobellia galactanivorans has a polysaccharide utilization locus dedicated to the catabolism of the red algal cell wall galactan carrageenan and its unique and industrially important α‐3,6‐anhydro‐D‐galactose (ADG) m…
View article: Structural Study of the Cobetia marina Bacteriophage 1 (Carin-1) by Cryo-EM
Structural Study of the Cobetia marina Bacteriophage 1 (Carin-1) by Cryo-EM Open
Oceans play a central role in the carbon cycle on Earth and on the climate regulation (half of the planet's CO2 is absorbed by phytoplankton photosynthesis in the oceans and just as much O2 is liberated). The understanding of the biochemic…
View article: X‐ray structure and mechanism of <scp>ZgHAD</scp>, a <scp>l</scp>‐2‐haloacid dehalogenase from the marine Flavobacterium <i>Zobellia galactanivorans</i>
X‐ray structure and mechanism of <span>ZgHAD</span>, a <span>l</span>‐2‐haloacid dehalogenase from the marine Flavobacterium <i>Zobellia galactanivorans</i> Open
Haloacid dehalogenases are potentially involved in bioremediation of contaminated environments and few have been biochemically characterized from marine organisms. The l ‐2‐haloacid dehalogenase ( l ‐2‐HAD) from the marine Bacteroidetes Zo…
View article: Structure–function analysis of a new PL17 oligoalginate lyase from the marine bacterium <i>Zobellia galactanivorans</i> DsijT
Structure–function analysis of a new PL17 oligoalginate lyase from the marine bacterium <i>Zobellia galactanivorans</i> DsijT Open
Alginate is a major compound of brown macroalgae and as such an important carbon and energy source for heterotrophic marine bacteria. Despite the rather simple composition of alginate only comprising mannuronate and guluronate units, these…
View article: Atypical Iron-Sulfur Cluster Binding, Redox Activity and Structural Properties of Chlamydomonas reinhardtii Glutaredoxin 2
Atypical Iron-Sulfur Cluster Binding, Redox Activity and Structural Properties of Chlamydomonas reinhardtii Glutaredoxin 2 Open
Glutaredoxins (GRXs) are thioredoxin superfamily members exhibiting thiol-disulfide oxidoreductase activity and/or iron-sulfur (Fe-S) cluster binding capacities. These properties are determined by specific structural factors. In this study…
View article: <i>Sinorhizobium meliloti</i>YrbA binds divalent metal cations using two conserved histidines
<i>Sinorhizobium meliloti</i>YrbA binds divalent metal cations using two conserved histidines Open
Sinorhizobium meliloti is a nitrogen-fixing bacterium forming symbiotic nodules with the legume Medicago truncatula. S. meliloti possesses two BolA-like proteins (BolA and YrbA), the function of which is unknown. In organisms where BolA pr…
View article: Target Of Rapamycin pathway in the white-rot fungus Phanerochaete chrysosporium
Target Of Rapamycin pathway in the white-rot fungus Phanerochaete chrysosporium Open
The Target Of Rapamycin (TOR) signaling pathway is known to regulate growth in response to nutrient availability and stress in eukaryotic cells. In the present study, we have investigated the TOR pathway in the white-rot fungus Phanerochae…
View article: Mitochondrial Arabidopsis thaliana TRXo Isoforms Bind an Iron–Sulfur Cluster and Reduce NFU Proteins In Vitro
Mitochondrial Arabidopsis thaliana TRXo Isoforms Bind an Iron–Sulfur Cluster and Reduce NFU Proteins In Vitro Open
In plants, the mitochondrial thioredoxin (TRX) system generally comprises only one or two isoforms belonging to the TRX h or o classes, being less well developed compared to the numerous isoforms found in chloroplasts. Unlike most other pl…
View article: <i>Trametes versicolor</i> glutathione transferase Xi 3, a dual Cys‐GST with catalytic specificities of both Xi and Omega classes
<i>Trametes versicolor</i> glutathione transferase Xi 3, a dual Cys‐GST with catalytic specificities of both Xi and Omega classes Open
Glutathione transferases ( GST s) from the Xi and Omega classes have a catalytic cysteine residue, which gives them reductase activities. Until now, they have been assigned distinct substrates. While Xi GST s specifically reduce glutathion…
View article: Dataset for: Trametes versicolor Glutathione Transferase Xi 3, a dual Cys-GST with catalytic specificities of both Xi and Omega classes
Dataset for: Trametes versicolor Glutathione Transferase Xi 3, a dual Cys-GST with catalytic specificities of both Xi and Omega classes Open
Glutathione transferases (GSTs) from the Xi and Omega classes have a catalytic cysteine residue which gives them reductase activities. Until now, they have been assigned distinct substrates. While Xi GSTs specifically reduce glutathionyl-(…
View article: Chloroplast FBPase and SBPase are thioredoxin-linked enzymes with similar architecture but different evolutionary histories
Chloroplast FBPase and SBPase are thioredoxin-linked enzymes with similar architecture but different evolutionary histories Open
Significance We demonstrate that, although the two phosphatases of the Calvin–Benson cycle of photosynthesis [sedoheptulose-1,7-bisphosphatase (SBPase) and fructose-1,6-bisphosphatase (FBPase)] share extensive structural homology, their re…