{"90371":{"#nid":"90371","#data":{"type":"event","title":"(11-0901) Prof. Sabeeha Merchant, UCLA","body":[{"value":"\u003Cp\u003EProf. Sabeeha Merchant, UCLA\n\u003C\/p\u003E\n\u003Cp\u003ETrace metal economy in Chlamydomonas\n\u003C\/p\u003E\n\u003Cp\u003ESchool Colloquium\n\u003C\/p\u003E\n\u003Cp\u003EInorganic trace elements can limit the abundance of photosynthetic organisms because of their role as cofactors in enzymes. In Chlamydomonas cultures placed in a situation of poor copper nutrition, copper is preferentially allocated to cytochrome oxidase over ferroxidase and plastocyanin. In a pathway controlled by a copper-sensing transcription factor, plastocyanin, functionally replaced by cytochrome c\u003Csub\u003E6\u003C\/sub\u003E, is degraded and its copper cofactor is recycled for continued synthesis of cytochrome oxidase, an essential enzyme in respiration. RNA-seq analysis of the Chlamydomonas transcriptome in batch culture of copper-deficient cells identifies a candidate protease for plastocyanin degradation. The co-occurrence of genetic information for plastocyanin as well as functionally-equivalent cytochrome c\u003Csub\u003E6\u003C\/sub\u003E in algal and cyanobacterial genomes suggests a role for plastocyanin in copper sequestration, which may provide a competitive advantage in copper-deplete environments.\n\u003C\/p\u003E\n\u003Cp\u003EFor more information contact \u003Ca href=\u0022mailto:christoph.fahrni@chemistry.gatech.edu\u0022\u003EProf. Christoph Fahrni\u003C\/a\u003E (404-385-1164).\u003Cem\u003E\u003C\/em\u003E\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"Prof. Sabeeha Merchant, UCLA\n\nTrace metal economy in Chlamydomonas\n\nSchool Colloquium","format":"limited_html"}],"field_summary_sentence":[{"value":"Prof. Sabeeha Merchant, UCLA"}],"uid":"27275","created_gmt":"2010-06-17 00:00:00","changed_gmt":"2016-10-08 01:47:17","author":"Shirley Tomes","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2011-09-01T17:00:00-04:00","event_time_end":"2011-09-01T18:00:00-04:00","event_time_end_last":"2011-09-01T18:00:00-04:00","gmt_time_start":"2011-09-01 21:00:00","gmt_time_end":"2011-09-01 22:00:00","gmt_time_end_last":"2011-09-01 22:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"related_links":[{"url":"http:\/\/www.chem.ucla.edu\/dept\/Faculty\/merchant.html\/","title":"Prof. Sabeeha Merchant, UCLA"}],"groups":[{"id":"85951","name":"School of Chemistry and Biochemistry"}],"categories":[],"keywords":[{"id":"1809","name":"physical chemistry"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cstrong\u003EShirley Tomes\u003C\/strong\u003E\u003Cbr \/\u003EChemistry \u0026amp; Biochemistry\u003Cbr \/\u003E\u003Ca href=\u0022http:\/\/www.gatech.edu\/contact\/index.html?id=st81\u0022\u003EContact Shirley Tomes\u003C\/a\u003E\u003Cbr \/\u003E\u003Cstrong\u003E404-894-0591\u003C\/strong\u003E","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}