Share This Author
Structure of the Ebola Fusion Peptide in a Membrane-mimetic Environment and the Interaction with Lipid Rafts*
- M. S. Freitas, L. P. Gaspar, Jerson L. Silva
- Biology, ChemistryJournal of Biological Chemistry
- 14 September 2007
The results reveal that EBO16 can interact with detergent-resistant membrane fractions and strongly suggest that Trp-8 and Phe-12 are important for structure maintenance within the membrane bilayer and provide a clue for the development of a drug that might block the early steps of viral infection.
Structure of a Membrane-binding Domain from a Non-enveloped Animal Virus
The results suggest that small protein components such as the γ-peptide in nodaviruses (such as FHV) and VP4 in picornaviraluses have a crucial role in conducting nucleic acids through cellular membranes and that their structures resemble the fusion domains of membrane proteins from enveloped viruses.
Polyenic pigments from the Brazilian octocoral Phyllogorgia dilatata Esper, 1806 characterized by Raman spectroscopy
Phyllogorgia dilatata is a Brazilian endemic gorgonian with a natural color ranging from white to pale yellow. An unusual violet pigmentation has been observed in colonies with tissue damage and…
Identification of Shell Colour Pigments in Marine Snails Clanculus pharaonius and C. margaritarius (Trochoidea; Gastropoda)
This study uses modern chemical and multi-modal spectroscopic techniques to identify two porphyrin pigments and eumelanin in the shell of marine snails Clanculus pharaonius and C margaritarius, showing that homology of visible colour cannot be assumed without identification of pigments.
New cytotoxic sterol glycosides from the octocoral Carijoa (Telesto) riisei.
Two new steroidal glycosides, 3beta-O-(3'-O-acetyl-beta-D-arabinopyranosyl)-25xi-choles tan e-3beta, 5alpha,6beta,26-tetrol-26-acetate (riisein A and B), were isolated from extracts of the Brazilian telestacean octocoral Carijoa (Telesto) riisei collected near Rio de Janeiro.
Influence of sulfated polysaccharides from Ulva lactuca L. upon Xa and IIa coagulation factors and on venous blood clot formation
Antipredatory secosterols from the octocoral Pseudopterogorgia americana
The results suggest that symbiont-produced gorgosterol and dinosterol are oxidized by the coral host to C-ring secosterols, which then provide a chemical defense to both coral and alga.
Identification of reddish pigments in octocorals by Raman spectroscopy
The nature of the pigments in octocorals has been investigated by Raman spectroscopy, where laser excitation at 632.8 and 1064 nm were used to characterize the colored components present in the…
Colour diversification in octocorals based on conjugated polyenes: A Raman spectroscopic view
Polyenic pigments in octocorals have been investigated by Raman spectroscopy using laser excitation at 532, 785 and 1064 nm. The spectral features suggest the structural nature of carotenoids from…
Chemical defenses of the endemic Brazilian gorgonian Lophogorgia violacea Pallas (Octocorallia, Gorgonacea)
Feeding experiments incorporating the crude extract of the animal into palatable foods showed that the organic constituents of L. violacea provide a powerful chemical deterrence toward consumption by generalist fish carnivores, adding to earlier studies providing further evidence that compounds of this structural class provide effective chemical defenses against fish predators in both temperate and tropical environments.