rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
5269
|
pubmed:dateCreated |
1996-7-25
|
pubmed:databankReference |
|
pubmed:abstractText |
Peridinin-chlorophyll-protein, a water-soluble light-harvesting complex that has a blue-green absorbing carotenoid as its main pigment, is present in most photosynthetic dinoflagellates. Its high-resolution (2.0 angstrom) x-ray structure reveals a noncrystallographic trimer in which each polypeptide contains an unusual jellyroll fold of the alpha-helical amino- and carboxyl-terminal domains. These domains constitute a scaffold with pseudo-twofold symmetry surrounding a hydrophobic cavity filled by two lipid, eight peridinin, and two chlorophyll a molecules. The structural basis for efficient excitonic energy transfer from peridinin to chlorophyll is found in the clustering of peridinins around the chlorophylls at van der Waals distances.
|
pubmed:commentsCorrections |
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Jun
|
pubmed:issn |
0036-8075
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
21
|
pubmed:volume |
272
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
1788-91
|
pubmed:dateRevised |
2007-3-19
|
pubmed:meshHeading |
pubmed-meshheading:8650577-Animals,
pubmed-meshheading:8650577-Carotenoids,
pubmed-meshheading:8650577-Chlorophyll,
pubmed-meshheading:8650577-Crystallography, X-Ray,
pubmed-meshheading:8650577-Dinoflagellida,
pubmed-meshheading:8650577-Energy Transfer,
pubmed-meshheading:8650577-Hydrogen Bonding,
pubmed-meshheading:8650577-Models, Molecular,
pubmed-meshheading:8650577-Molecular Conformation,
pubmed-meshheading:8650577-Photosynthesis,
pubmed-meshheading:8650577-Protein Conformation,
pubmed-meshheading:8650577-Protein Folding,
pubmed-meshheading:8650577-Protein Structure, Secondary,
pubmed-meshheading:8650577-Protozoan Proteins
|
pubmed:year |
1996
|
pubmed:articleTitle |
Structural basis of light harvesting by carotenoids: peridinin-chlorophyll-protein from Amphidinium carterae.
|
pubmed:affiliation |
Fakultät für Biologie, Universität Konstanz, Germany.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|