Monday 10/13/14

10:00 am – 2:45 am

Chromatin

Literature

  • reading Mirny 2011 review

Simulations

Data for Bogdan

  • send volume table to Bodgan to explore densities
  • send table of internal volumes
  • send table of intact Rgs
  • send table of internal Rgs

To plot for XZ meeting

  • blue internal scaling, just BX-C data. With .5 and .33 reference lines
  • blue internal scaling, just ANT-C data. With .5 and .33 reference lines
  • simulation of pure black chromatin.

Simulations

  • got black working
  • added yellow – too many holes? allows black to equilibrate?
  • reduced yellow – seems to help, hard to tell when not a lot of yellow to go by.
  • went back to all black – back to 0.4 scaling?
  • went back to all black with Grosberg repulsion, still 0.4 scaling.
  • reduced number of domains and increased min domain size (maybe the too smalls are getting in the way).
  • this fixes things, back to 0.3. ‘YellowBlackAllK4_Rnd’
  • switching back from Grosberg to tagged force. Seems to be okay. 0.32 ‘YellowBlackAllK5_Rnd’
  • adding back 10% yellow ‘YellowBlackAllK6_Rnd’. Black seems to stay down at 0.3 to 0.35, though the data is supernoisy with this few points. Yellow with 3 points is useless to fit. showing 0.24 (-1,1.5)
  • ‘YellowBlackAllK7_Rnd’ with more yellow poitns is still pretty even (0.32 black [.21 .42], 0.26 yellow [.13 .4])
  • let’s try making yellow a bit more phantom than 5:50. ‘YellowBlackAllK8_Rnd’ looking at 2::50 comparison
  • This looks a bit more promising, black is staying at .3, yellow is occassionally climbing above (though still very noise).
  • running 200 step, more subchains, larger polymer, long run overnight ‘YellowBlackAllK11_Rnd’.
  • overnight run looks decent. data is still very noisy, maybe this will average away if we use a random chain configuration to start instead of the deterministic wrapping, and we do we enough repeats. (current system of repeats doesn’t average away noise).

Project 2

  • restart Cajal running on scans
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