Document Detail


Unique regulation of the Calvin cycle in the ultrasmall green alga Ostreococcus.
MedLine Citation:
PMID:  17457634     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Glyceraldehyde-3-phosphate dehydrogenase (GapAB) and CP12 are two major players in controlling the inactivation of the Calvin cycle in land plants at night. GapB originated from a GapA gene duplication and differs from GapA by the presence of a specific C-terminal extension that was recruited from CP12. While GapA and CP12 are assumed to be generally present in the Plantae (glaucophytes, red and green algae, and plants), up to now GapB was exclusively found in Streptophyta, including the enigmatic green alga Mesostigma viride. However, here we show that two closely related prasinophycean green algae, Ostreococcus tauri and Ostreococcus lucimarinus, also possess a GapB gene, while CP12 is missing. This remarkable finding either antedates the GapA/B gene duplication or indicates a lateral recruitment. Moreover, Ostreococcus is the first case where the crucial CP12 function may be completely replaced by GapB-mediated GapA/B aggregation.
Authors:
Steven Robbens; Jörn Petersen; Henner Brinkmann; Pierre Rouzé; Yves Van de Peer
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Publication Detail:
Type:  Letter; Research Support, Non-U.S. Gov't     Date:  2007-04-24
Journal Detail:
Title:  Journal of molecular evolution     Volume:  64     ISSN:  0022-2844     ISO Abbreviation:  J. Mol. Evol.     Publication Date:  2007 May 
Date Detail:
Created Date:  2007-05-07     Completed Date:  2007-08-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0360051     Medline TA:  J Mol Evol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  601-4     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Algae, Green / genetics,  metabolism*
Algal Proteins / genetics,  metabolism
Evolution, Molecular
Gene Expression Regulation
Photosynthesis / genetics,  physiology*
Phylogeny
Chemical
Reg. No./Substance:
0/Algal Proteins

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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