BEGIN:VCALENDAR VERSION:2.0 METHOD:PUBLISH PRODID:-//Missouri State University/Calendar of Events//EN CALSCALE:GREGORIAN X-WR-TIMEZONE:America/Chicago BEGIN:VTIMEZONE TZID:America/Chicago BEGIN:DAYLIGHT TZOFFSETFROM:-0600 TZOFFSETTO:-0500 DTSTART:20070311T020000 RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU TZNAME:CDT END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0500 TZOFFSETTO:-0600 DTSTART:20071104T020000 RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU TZNAME:CST END:STANDARD END:VTIMEZONE BEGIN:VEVENT UID:731b9bd2-fbf2-44cb-80a9-18d8e3bfd9fa.183274@calendar.missouristate.edu CREATED:20171018T175807Z LAST-MODIFIED:20171018T175807Z LOCATION:Meyer Library\, Duane G. 101 SUMMARY:Chemistry Seminar: Elucidating Molecular Mechanisms in Photosynthe tic Water Oxidation DESCRIPTION:Dr. David Vinyard from the department of biological sciences a t Louisiana State University will speak on the above topic.\n\n\nIn plant s\, algae\, and cyanobacteria\, Photosystem II (PSII) uses visible light to strip electrons from water to form O2. The active site of water oxidat ion is the oxygen-evolving complex (OEC)\, a Mn4CaO5 inorganic cluster li gated by amino acid residues\, oxides\, and waters. While the OEC is the source of virtually all O2 on Earth\, its biosynthesis pathway\, the iden tity of the substrate water molecules and the chemical mechanism of O-O b ond formation are not well established. We use a wide variety of techniqu es to study these processes including instrument design\, molecular biolo gy\, protein biochemistry\, chemical kinetics and electron paramagnetic r esonance spectroscopy. In this talk\, Dr. Vinyard will introduce structur al models for substrate water binding during the OEC catalytic cycle and will discuss current efforts to regulate the efficiency of photosynthesis by modifying PSII. X-ALT-DESC;FMTTYPE=text/html:<html><head><title></title></head><body><p>Dr . David Vinyard from the department of biological sciences at Louisiana S tate University will speak on the&nbsp\;above topic.</p>\n<p>In plants\, algae\, and cyanobacteria\, Photosystem II (PSII) uses visible light to s trip electrons from water to form O2. The active site of water oxidation is the oxygen-evolving complex (OEC)\, a Mn4CaO5 inorganic cluster ligate d by amino acid residues\, oxides\, and waters. While the OEC is the sour ce of virtually all O2 on Earth\, its biosynthesis pathway\, the identity of the substrate water molecules and the chemical mechanism of O-O bond formation are not well established. We use a wide variety of techniques t o study these processes including instrument design\, molecular biology\, protein biochemistry\, chemical kinetics and electron paramagnetic reson ance spectroscopy. In this talk\,&nbsp\;Dr. Vinyard will introduce struct ural models for substrate water binding during the OEC catalytic cycle an d will discuss current efforts to regulate the efficiency of photosynthes is by modifying PSII.</p></body></html> DTSTART;TZID=America/Chicago:20171018T153500 DTEND;TZID=America/Chicago:20171018T163500 SEQUENCE:0 URL: CATEGORIES:Public,Current Students,Faculty,Staff END:VEVENT END:VCALENDAR