English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/3124
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Internal Structure of Chlorosomes from Brown-Colored Chlorobium Species and the Role of Carotenoids in Their Assembly

AutorPsencik, Jakub; Arellano, Juan B. ; Ikonen, Teemu P.; Borrego, Carles M.; Laurinmäki, Pasi A.; Butcher, Sarah J.; Serimaa, Ritva E.; Tuma, Roman
Palabras claveChlorosomes
Brwo-coloured Chlorobium spp
Bacteriochlorophyll aggregates
lamellar model
Fecha de publicaciónago-2006
EditorRockefeller University Press
CitaciónBiophysical Journal Volume 91 August 2006 1433–1440
ResumenChlorosomes are the main light harvesting complexes of green photosynthetic bacteria. Recently, a lamellar model was proposed for the arrangement of pigment aggregates in Chlorobium tepidum chlorosomes, which contain bacteriochlorophyll (BChl) c as the main pigment. Here we demonstrate that the lamellar organization is also found in chlorosomes from two brown-colored species (Chl. phaeovibrioides and Chl. phaeobacteroides) containing BChl e as the main pigment. This suggests that the lamellar model is universal among green sulfur bacteria. In contrast to green-colored Chl. tepidum, chlorosomes from the brown-colored species often contain domains of lamellar aggregates that may help them to survive in extremely low light conditions. We suggest that carotenoids are localized between the lamellar planes and drive lamellar assembly by augmenting hydrophobic interactions. A model for chlorosome assembly, which accounts for the role of carotenoids and secondary BChl homologs, is presented.
Descripciónhttp://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1518626
Versión del editorhttp://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1518626&rendertype=abstract
URIhttp://hdl.handle.net/10261/3124
DOI10.1529/biophysj.106.084228
Aparece en las colecciones: (IRNASA) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Brown-coloured chlorosomes.tif193,99 kBTIFFVista previa
Visualizar/Abrir
internal_structure_of_chlorosomes.pdf474,12 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.