J
Jeanette M. Quinn
Researcher at University of California, Los Angeles
Publications - 17
Citations - 1327
Jeanette M. Quinn is an academic researcher from University of California, Los Angeles. The author has contributed to research in topics: Chlamydomonas reinhardtii & Chlamydomonas. The author has an hindex of 12, co-authored 17 publications receiving 1275 citations.
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Journal ArticleDOI
Copper-dependent iron assimilation pathway in the model photosynthetic eukaryote Chlamydomonas reinhardtii.
Sharon La Fontaine,Jeanette M. Quinn,Stacie S. Nakamoto,M. Dudley Page,Vera Göhre,Jeffrey L. Moseley,Janette Kropat,Sabeeha S. Merchant +7 more
TL;DR: Growth of C. reinhardtii under copper- and iron-limiting conditions showed that, unlike the situation in yeast and mammals, where copper deficiency results in a secondary iron deficiency, copper-deficient Chlamydomonas cells do not exhibit symptoms of iron deficiency.
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Two copper-responsive elements associated with the Chlamydomonas Cyc6 gene function as targets for transcriptional activators.
TL;DR: ATG fusions between copper-insensitive promoters and the coding plus 3' untranslated region of the Cyc6 gene resulted in the accumulation of cyt c6 in copper-supplemented medium; this confirms earlier studies indicating a lack of post-transcriptional control in this copper-responsive pathway.
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The Crd1 gene encodes a putative di-iron enzyme required for photosystem I accumulation in copper deficiency and hypoxia in Chlamydomonas reinhardtii.
TL;DR: The crd phenotype is rescued by a similar amount of copper as is required for repression of Cyc6 and Cpx1 and for maintenance of plastocyanin at its usual stoichiometry, suggesting that the affected gene is a target of the same signal transduction pathway.
Journal ArticleDOI
Reciprocal expression of two candidate di-iron enzymes affecting photosystem I and light-harvesting complex accumulation.
Jeffrey L. Moseley,M. Dudley Page,Nancy P. Alder,Mats Eriksson,Jeanette M. Quinn,Feiris Soto,Steven M. Theg,Michael Hippler,Sabeeha S. Merchant +8 more
TL;DR: Fluorescence analysis of wild-type, crd1, and sct1 strains indicates that copper-responsive adjustment of the Cth1:Crd1 ratio results in modification of the interactions between photosystem I and associated light-harvesting complexes.
Journal ArticleDOI
Coordinate copper- and oxygen-responsive Cyc6 and Cpx1 expression in Chlamydomonas is mediated by the same element.
TL;DR: Reporter gene constructs indicate that the induction of the Cyc6 and Cpx1 genes requires the same GTAC sequence that is critical for copper responsiveness, and it is suggested that components of the copper-responsive signal transduction pathway are used for some of the changes in gene expression in hypoxic cells.