Document Detail


NUA Activities at the Plant Nuclear Pore.
MedLine Citation:
PMID:  19704557     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
NUA (Nuclear Pore Anchor), the Arabidopsis homolog of Tpr (Translocated Promoter Region), is one of the few nuclear pore proteins conserved between animals, yeast and plants. In the May issue of Plant Cell, we report that null mutants of NUA show a pleiotropic, early flowering phenotype accompanied by changes in SUMo and RNA homeostasis. We have shown that the early flowering phenotype is caused by changed abundances of flowering time regulators involved in several pathways. Arabidopsis nua mutants phenocopy mutants lacking the ESD4 (EARlY IN ShoRT DAYS 4) SUMo protease, similar to mutants of their respective yeast homologs. however, in contrast to the comparable yeast mutants, ESD4 does not appear to be delocalized from the nuclear pore in nua mutants. Taken together, our experimental data suggests a role for NUA in controlling mRNA export from the nucleus as well as SUMo protease activity at the nuclear pore, comparable but not identical to its homologs in other eukaryotes. Furthermore, characterization of NUA illustrates a potential link at the nuclear pore between SUMo modification, RNA homeostasis and plant developmental control.
Authors:
Xianfeng Morgan Xu; Annkatrin Rose; Iris Meier
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Plant signaling & behavior     Volume:  2     ISSN:  1559-2316     ISO Abbreviation:  Plant Signal Behav     Publication Date:  2007 Nov 
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:  553-5     Citation Subset:  -    
Affiliation:
Department of Plant Cellular and Molecular Biology and Plant Biotechnology Center; Ohio State University; Columbus, Ohio USA.
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