• Publications
  • Influence
Identification of a mechanism of photoprotective energy dissipation in higher plants
It is experimentally demonstrated that a change in conformation of LHCII occurs in vivo, which opens a channel for energy dissipation by transfer to a bound carotenoid, suggesting that this is the principal mechanism of photoprotection. Expand
The Disulfide Bonds in Glycoprotein E2 of Hepatitis C Virus Reveal the Tertiary Organization of the Molecule
The resulting model of the tertiary organization of E2 gives key information on the antigenicity determinants of the virus, maps the receptor binding site to the interface of domains I and III, and provides insight into the nature of a putative fusogenic conformational change. Expand
Molecular basis of photoprotection and control of photosynthetic light-harvesting
A spectroscopic analysis of this crystal form is presented, and the specific changes in configuration of its pigment population that give LHCII the intrinsic capability to regulate energy flow are identified, which provides a molecular basis for understanding the control of photosynthetic light-harvesting. Expand
A photoactive carotenoid protein acting as light intensity sensor
It is shown that the OCP is a member of the family of photoactive proteins; it is a unique example of a photoactive protein containing a carotenoid as the photoresponsive chromophore and senses light intensity and triggers photoprotection. Expand
The H-NS dimerization domain defines a new fold contributing to DNA recognition
The minimal dimerization domain of H-NS is identified, a 46 amino acid–long N-terminal fragment, and its structure is determined using heteronuclear NMR spectroscopy, which defines a new structural fold, which may offer a possibility for discriminating prokaryotic from eukaryotic proteins in drug design. Expand
Elevated Zeaxanthin Bound to Oligomeric LHCII Enhances the Resistance of Arabidopsis to Photooxidative Stress by a Lipid-protective, Antioxidant Mechanism*
It is suggested that the protein/lipid interface is the active site for the antioxidant activity of zeaxanthin, which mediates stress tolerance by the protection of bound lipids in transformed plants. Expand
Resonance Raman spectroscopy
  • B. Robert
  • Chemistry, Medicine
  • Photosynthesis Research
  • 1 July 2009
The information content of resonance Raman spectra of chlorophyll and carotenoid molecules is described in this review, together with the experiments which helped in determining which structural parameter each Raman band is sensitive to. Expand
Configuration and Dynamics of Xanthophylls in Light-harvesting Antennae of Higher Plants
Both xanthophylls (notably, zeaxanthin) were found to be well coordinated within the antenna proteins in vivo, arguing against the possibility of their free diffusion in the membrane and supporting the recent biochemical evidence of their association with intact oligomeric light-harvesting complexes. Expand
The Degree of Oligomerization of the H-NS Nucleoid Structuring Protein Is Related to Specific Binding to DNA*
It is proposed that the dimeric core recognizes specific motifs, with the second interface being critical for their correct head to tail assembly and the view that the same interacting interfaces are also involved on the DNA. Expand
Nanodissection and high-resolution imaging of the Rhodopseudomonas viridis photosynthetic core complex in native membranes by AFM
High-resolution AFM of the photosynthetic core complex in native Rhodopseudomonas viridis membranes shows that the L and M subunits exhibit an asymmetric topography intimately associated to the LH1 subunits located at the short ellipsis axis. Expand