Document Detail


A NIMA-related kinase, Fa2p, localizes to a novel site in the proximal cilia of Chlamydomonas and mouse kidney cells.
MedLine Citation:
PMID:  15371535     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Polycystic kidney disease and related syndromes involve dysregulation of cell proliferation in conjunction with ciliary defects. The relationship between cilia and cell cycle is enigmatic, but it may involve regulation by the NIMA-family of kinases (Neks). We previously showed that the Nek Fa2p is important for ciliary function and cell cycle in Chlamydomonas. We now show that Fa2p localizes to an important regulatory site at the proximal end of cilia in both Chlamydomonas and a mouse kidney cell line. Fa2p also is associated with the proximal end of centrioles. Its localization is dynamic during the cell cycle, following a similar pattern in both cell types. The cell cycle function of Fa2p is kinase independent, whereas its ciliary function is kinase dependent. Mice with mutations in Nek1 or Nek8 have cystic kidneys; therefore, our discovery that a member of this phylogenetic group of Nek proteins is localized to the same sites in Chlamydomonas and kidney epithelial cells suggests that Neks play conserved roles in the coordination of cilia and cell cycle progression.
Authors:
Moe R Mahjoub; M Qasim Rasi; Lynne M Quarmby
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2004-09-15
Journal Detail:
Title:  Molecular biology of the cell     Volume:  15     ISSN:  1059-1524     ISO Abbreviation:  Mol. Biol. Cell     Publication Date:  2004 Nov 
Date Detail:
Created Date:  2004-10-26     Completed Date:  2005-04-08     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  9201390     Medline TA:  Mol Biol Cell     Country:  United States    
Other Details:
Languages:  eng     Pagination:  5172-86     Citation Subset:  IM    
Affiliation:
Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, British Columbia, V5A 1S6, Canada.
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MeSH Terms
Descriptor/Qualifier:
Animals
Cell Cycle
Cell Cycle Proteins / chemistry,  physiology*
Cell Line
Centrioles / metabolism,  ultrastructure
Chlamydomonas / metabolism*
Cilia / metabolism*
DNA, Complementary / metabolism
Epitopes / chemistry
Fluorescent Antibody Technique, Indirect
Green Fluorescent Proteins / metabolism
Immunoblotting
Kidney / metabolism*,  pathology
Mice
Mitosis
Mutation
Protein Kinases / metabolism
Protein Structure, Tertiary
Protein-Serine-Threonine Kinases / biosynthesis*,  chemistry,  metabolism,  physiology*
Protein-Tyrosine Kinases / metabolism
Signal Transduction
Subcellular Fractions / metabolism
Time Factors
Chemical
Reg. No./Substance:
0/Cell Cycle Proteins; 0/DNA, Complementary; 0/Epitopes; 147336-22-9/Green Fluorescent Proteins; EC 2.7.-/Protein Kinases; EC 2.7.1.-/NIMA protein kinase; EC 2.7.1.37/Nek8 protein, mouse; EC 2.7.10.1/Protein-Tyrosine Kinases; EC 2.7.11.1/Protein-Serine-Threonine Kinases
Comments/Corrections

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