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Moving the green: CHUP1 and chloroplast movement-An obvious relationship?
MedLine Citation:
PMID:  19704495     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Chloroplast movement as a response of plants to light variations is presented as an example in each classical textbook, showing that these organelles accumulate in response to low light and avoid high light irradiation. In sharp contrast to the morphological discovery of the phenomenon, which dates back more than a century, the molecular understanding of this effect is just at its beginning and only recently first components of the signal cascade initiating this process were described. Among these, a protein termed CHUP1 was identified. This protein is present in the outer membrane of chloroplasts and thereby discussed as the first component of a possible 'moving ensemble' assembling at the 'moved cargo'. The protein is able to interact with actin and profilin-and even more, is able to regulate this interaction in vitro. Thereby, today it can be stated that actin filament reformation and chloroplast repositioning are coordinated if not dependent on each other.
Authors:
Serena Schmidt von Braun; Enrico Schleiff
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Plant signaling & behavior     Volume:  3     ISSN:  1559-2316     ISO Abbreviation:  Plant Signal Behav     Publication Date:  2008 Jul 
Date Detail:
Created Date:  2009-08-25     Completed Date:  2012-10-02     Revised Date:  2013-05-23    
Medline Journal Info:
Nlm Unique ID:  101291431     Medline TA:  Plant Signal Behav     Country:  United States    
Other Details:
Languages:  eng     Pagination:  488-9     Citation Subset:  -    
Affiliation:
JWGU Frankfurt am Main; Cluster of Excellence Macromolecular Complexes; Department of Biosciences; Frankfurt, Germany.
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