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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:20260509T143235Z DTSTART;VALUE=DATE-TIME:20220419T160000 DTEND;VALUE=DATE-TIME:20220419T170000 SUMMARY:BMS Seminar: The mechano-responsive cell membrane and the regulat ion of integrin signalling\, Professor Satyajit Mayor\, National Centre for Biological Sciences Bangalore TZID:Europe/London UID:20220419-8a1785d77faca581017ffe77b2956b7f@warwick.ac.uk CREATED:20220406T104211Z DESCRIPTION:Abstract: The surface of a eukaryotic cell interfaces with th e external milieu constantly decoding signals in the form of chemical an d physical cues\, interpreted primarily by membrane receptors. These rec eptors are embedded in a plasma membrane that is templated by an active cortical actin meshwork. Active mechanics of actin filaments at the inne r leaflet of the membrane orchestrate nanoclusters of membrane proteins and lipids. Nanoclusters of GPI-anchored proteins and glycolipids at the outer leaflet require long acyl chain containing moieties in each leafl et as well as cholesterol to link to the active cortical actin at the in ner leaflet. A combination of active contractile stresses and transbilay er coupling drive the creation of active emulsions\, mesoscale liquid or dered (lo) domains of GPI-anchored proteins and lipids. Force transducin g signalling receptors such as extra-cellular matrix ligand-activated in tegrin receptors orchestrates the creation of these membrane domains by triggering the acto-myosin machinery and activating the mechano-transduc er\, Vinculin. This translates into a substrate encoded mechano-chemical signal in the form of a localised lo-domain. These domains serve to cru cial aspects of integrin receptor function\, including cell spreading\, migration\, and sensing mechanical stiffness of the matrix. The active a ctin-membrane composite membrane therefore behaves as a mechano-responsi ve medium\, serving to integrate chemical and physical cues presented at the cell surface. Biography: Professor Satyajit Mayor is a distinguishe d cell biologist. He has worked on various aspects of trafficking of mol ecules into and out of cells. Particularly noteworthy is his study of GP I-linked proteins\, and the elucidation of nano-scale ‘rafts’ in cell me mbranes. His work has been recognised by several national and internatio nal awards\, such as the Shanti Swarup Bhatnagar Award and the Infosys P rize. He has also been elected Foreign Associate of the US National Acad emy of Sciences. LOCATION: CATEGORIES:BiomedicalSciences,DivisionalSeminars LAST-MODIFIED:20220406T104211Z ORGANIZER;CN=Jas Bains: END:VEVENT END:VCALENDAR