Internal structure of chlorosomes from brown-colored Chlorobium species and the role of carotenoids in their assembly
dc.contributor.author
dc.date.accessioned
2011-09-15T07:44:33Z
dc.date.available
2011-09-15T07:44:33Z
dc.date.issued
2006
dc.identifier.citation
Psencik, J., Arellano, J.B., Ikonen, T.P., Borrego, C.M., Laurinmaki, P.A., Butcher, S.J., Serimaa, R.E.. et al. (2006). Internal structure of chlorosomes from brown-colored Chlorobium species and the role of carotenoids in their assembly. Biophysical Journal, 91 (4), 1433-1440. Recuperat 15 de setembre de 2011, a doi:10.1529/biophysj.106.084228
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0006-3495
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dc.description.abstract
Chlorosomes 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
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application/pdf
dc.language.iso
eng
dc.publisher
Biophysical Society
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Reproducció digital del document publicat a: http://dx.doi.org/10.1529/biophysj.106.084228
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© Biophysical Journal, 2006, vol. 91, núm. 4, p.1433-1440
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Articles publicats (D-B)
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Tots els drets reservats
dc.subject
dc.title
Internal structure of chlorosomes from brown-colored Chlorobium species and the role of carotenoids in their assembly
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info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.identifier.doi
dc.identifier.idgrec
005514