Conserved circadian elements in phylogenetically diverse algae
AUTOR(ES)
Mittag, Maria
FONTE
The National Academy of Sciences of the USA
RESUMO
Circadian expression of the luciferin-binding protein (LBP) from the dinoflagellate Gonyaulax polyedra is regulated at the translational level. A small interval in the lbp 3′-untranslated region, which contains seven UG-repeats, serves as a cis-acting element to which a trans-acting factor (CCTR) binds in a circadian manner. Its binding activity correlates negatively with the circadian expression of LBP. Here I report the identification of a protein in the green alga Chlamydomonas reinhardtii that represents a CCTR analog. It binds both specifically and under control of the circadian clock to the UG-repeat region. The data show for the first time that circadian cis-elements implicated in translational regulation have been conserved during evolution.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=26144Documentos Relacionados
- Upstream sequence elements enhance poly(A) site efficiency of the C2 complement gene and are phylogenetically conserved.
- Telomerase catalysis: A phylogenetically conserved reverse transcriptase
- Variation in Sulfide Tolerance of Photosystem II in Phylogenetically Diverse Cyanobacteria from Sulfidic Habitats
- Biofilm Dispersal of Neisseria subflava and Other Phylogenetically Diverse Oral Bacteria
- Phylogenetically and spatially conserved word pairs associated with gene-expression changes in yeasts
