Sunday 01/23/11

7:30 pm – 7:40 pm Welcome / Introductory Comments by GRC Site Staff
7:40 pm – 9:30 pm Are there principles of noise and networks in biology?
Discussion Leader: Hong Qian (University of Washington)
7:40 pm – 8:10 pm Alex van Oudenaarden (MIT)
“Controlling Gene Expression Fluctuations During Development”
8:10 pm – 8:15 pm Discussion
8:15 pm – 8:45 pm Kim Sneppen (Niehls Bohr, Denmark)
“Biological Network Components”
8:45 pm – 8:55 pm Discussion
8:55 pm – 9:25 pm George Oster (UC Berkeley)
“Neural Networks Pattern Shells”
9:25 pm – 9:30 pm Discussion

Day 1: stochastic physics in biology Gordon conference

Opening talks:

van Oudenaarden.

  • pt1: Multiple inputs into end1 (skn-1,med1/2, end3) provide robustly above threshold amounts of signal.  Near threshold signaling results in some cells (and thus some embryos) failing to latch on auto-activation.
  • pt2: miRNA damping fluctuations: removing lin4 (miRNA) results in oscillations in mRNA levels of lin14.  lin4 promoter also oscillates like14, couple oscillating repressor provides damping.

Kim Steppen: modeling lambda with simple 3 component systems, with ODEs and stochastic simulation.

George Oster stands in for Adam Arkin and talks about shell patterning.

post-talk discussion with Weinberger and van Oudernaarden

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