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SUMMARY:Physical Model of Contractile Ring Initiation in Dividing Cells - 
 Roie Shlomovitz\, Weizmann Institute\, Israel)
DTSTART:20100727T130000Z
DTEND:20100727T140000Z
UID:TALK25672@talks.cam.ac.uk
CONTACT:19438
DESCRIPTION:We present a physical mechanism to describe initiation of the 
 contractile ring during cell division. The model couples the membrane curv
 ature with the contractile forces produced by protein clusters attached to
  the membrane. These protein clusters are mobile on the membrane and posse
 ss either an isotropic or an anisotropic spontaneous curvature. Our result
 s show that under these conditions the contraction force gives rise to an 
 instability that corresponds in a closed cellular system to the initiation
  of the contractile ring. We find a quantization of this process at distin
 ct length-scales\, which we compare to available data for different types 
 of eukaryote cells\n
LOCATION:Seminar Room\, Centre for Physics of Medicine (PoM)
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