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DTSTART:19960101T000000 END:STANDARD BEGIN:STANDARD TZNAME:GMT TZOFFSETFROM:+0100 TZOFFSETTO:+0000 DTSTART:19961027T020000 RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20260511T112736Z DTSTART;VALUE=DATE-TIME:20210310T130000 DTEND;VALUE=DATE-TIME:20210310T140000 SUMMARY:BMS Divisional Webinar: Illuminating bacterial transcription mech anisms by watching single-molecule movies\, Professor Achilles Kapanidis \, University of Oxford TZID:Europe/London UID:20210310-8a1785d77540ff4601754a0dbc5820a8@warwick.ac.uk CREATED:20201116T091511Z DESCRIPTION:Abstract: Recording movies of single fluorescent biological m olecules while in action offers unprecedented direct access to biologica lly important heterogeneity and dynamics\; this holds true for reactions involving purified biochemical components\, as well as for reactions in side the complex biological milieu of living cells. During the past few years\, we have developed and used such methods (single-molecule FRET\, super-resolution imaging\, and single-particle tracking) to answer long- standing questions in bacterial transcription and DNA repair. Here\, I w ill discuss examples of our in vitro work focusing on the discovery and sequence-dependence of pausing during initial transcription\, and the el ucidation of the intricate sequence of conformational changes that allow RNA polymerase to open promoter DNA for transcription initiation. I wil l also discuss examples of our in vivo single-molecule work inside livin g bacteria\, including the exploration of the relation between chromosom e organization and gene expression. Finally\, I will discuss how the sam e methods can be used to detect bacterial pathogens and their antibiotic resistance. Our methods and biological observations are general and sho uld apply to many other biological systems and organisms. Biography: Ach illes Kapanidis studied Chemistry at the Aristotelian Univ of Thessaloni ki (Greece) and completed his PhD in Biological Chemistry at Rutgers Uni v (USA). After holding research scientist positions in single-molecule b iophysics at Berkeley and UCLA\, he became a senior lecturer at Oxford U niv in 2005\, and a Professor of Biological Physics in 2013\; Prof Kapan idis has also been an ERC grant holder and is currently a Wellcome Trust Investigator. Prof Kapanidis is currently leading a group of physical a nd biological scientists (the “Gene Machines” group) which studies micro bial biological machinery in gene expression\, maintenance\, and regulat ion\, with a focus on gene transcription and DNA repair. The main tool o f the group is single-molecule fluorescence microscopy coupled with adva nced image and time-series analysis\; the past few years\, his group has also been working on rapid and ultrasensitive detection of antibiotic r esistance and pathogenic viruses\, including influenza and coronaviruses . Prof Kapanidis has also been pursuing miniaturized single-molecule ima ging\, a project that culminated in the formation of the Oxford Nanoimag ing spin-out\, and for which he has won the 2019 BBSRC Innovator of the Year award. LOCATION:via Teams CATEGORIES:BiomedicalSciences,DivisionalSeminars LAST-MODIFIED:20201116T091511Z ORGANIZER;CN=Jas Bains: END:VEVENT END:VCALENDAR