User:Kchang17/notes: Difference between revisions

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==July 14, 2006==
==July 14, 2006==
#Day 1: trying out mutagenic PCR on Q04720.pSB1AK3 (mnt) - the prep for this was taken from MC4100, so pJat8 isn't in there and I know how much DNA I'm adding [[Image:July14_2006_gel.jpg|thumb|150px|mutagenic PCR, lanes left to right: 188 ng, 75 ng, 12.5 ng target DNA, 1.1 kb control (100ng)]]
#Day 1: trying out mutagenic PCR on Q04720.pSB1AK3 (mnt) - the prep for this was taken from MC4100, so pJat8 isn't in there and I know how much DNA I'm adding
#*Stratagene's [http://www.stratagene.com/products/displayProduct.aspx?pid=614 GeneMorph® II Random Mutagenesis kit]
#*Stratagene's [http://www.stratagene.com/products/displayProduct.aspx?pid=614 GeneMorph® II Random Mutagenesis kit]
#*using VF2-VR (24 pmol each per 50 ul reaction)
#*using VF2-VR (24 pmol each per 50 ul reaction)
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#**~12.5 ng target DNA (high range mutation freq)
#**~12.5 ng target DNA (high range mutation freq)
#Day 2: ran digest on a gel, did gel extraction
#Day 2: ran digest on a gel, did gel extraction
[[Image:July18_2006_gel.jpg|thumb|150px|restriction digest of Q04720 library]]
[[Image:July14_2006_gel.jpg|left|thumb|150px|mutagenic PCR, lanes left to right: 188 ng, 75 ng, 12.5 ng target DNA, 1.1 kb standard (100ng)]] [[Image:July18_2006_gel.jpg|left|thumb|150px|restriction digest of Q04720 library]]
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Revision as of 12:54, 18 July 2006

February 28, 2006

March 15, 2006

  • first measurement of mutated tetR QPI Q04400.007 (obtained from inverter library) in SP1.0 (MATLAB analysis)

June 22, 2006

  • tested everything in SP1.0 at 6 arabinose levels (0%-10-4%)
  • Q04400.007 innoculated at OD 0.0005 and grew for ~10 hrs (picture) (MATLAB analysis)
    • note: 10 hrs probably wasn't enough time for it to reach steady state esp. at high induction, assuming inverter was working better on July 11
  • Q04740 exptl cultures grew too dense - performed an extra dilution and redid the innoculation - innoculated at OD 0.0005 and grew for ~14 hrs
  • I14103 - grew very slowly - innoculated at OD 0.001 and grew for ~14 hrs (grew a little too dense)

June 29, 2006

  • devices in SP1.0, six arabinose levels (0%-10-4%)
  • Q04720 - innoculated at 0.0003 - grew ~15 hrs (too dense) (picture)
  • Q04730 - innoculated at 0.0003 - grew ~16 hrs (too dense) (picture)
    • during construction, a point mutation occurred in the ORF of the repressor protein (C0073) resulting in a change from Phe to Leu
  • Q04740 - innoculated 0.0003 - grew ~16 hrs (too dense) - weirdness, where did GFP and RFP go?
  • I14103 - innoculated at 0.0005 - grew ~15 hrs (too dense) (picture)
  • I14104 - having trouble cloning this, have to wait on testing

July 6, 2006

  • picture
  • induced ~7 hrs at no and high induction
  • the single red colony on a plate (probably got mixed with some white colony) from Q04740 in SP1.0 glycerol - got high RFP signal and GFP tracked induction - streaked this culture for July 11 testing
  • one white colony from the same plate - GFP showed this time - background RFP
  • empty SP1.0 - showed GFP and RFP

July 11, 2006

  • grew to stationary, then diluted back 100x, grew for ~8 hrs (cultures were all very light except for the empty SP and Q04400.007), innoculated at ~11:30 p.m.
    Colony PCR of Q04740 colonies, E0040F-E1010R. Two red and two white colonies. Region should be ~1.6 kb. Red colonies ~3 kb (transposable element jumped in). White colonies ~1.6 kb.
  • devices in SP1.0, six arabinose levels (0%-10-4%)
  • Reshma's constructs:
    • B0030.C2002.B0015.p8 (A) - innoculated at 0.0001 - grew ~14.5 hrs (picture)
    • B0030.C2003.B0015.p8 (B) - innoculated at 0.0001 - grew ~15 hrs (picture)
  • clones from July 6's penI red no induction culture, streaked on plate:
    • Q04740 red colony #1 (C) - innoculated at 0.0001 - grew ~14.5 hrs (picture)
    • Q04740 white (pink) colony #4 (D) - innoculated at 0.0001 - grew ~14.5 hrs (picture)
    • sequencing results: red colony had IS5 element jump in after the hairpin / before the prefix; white colony, when grown up/prepped/sequenced had a population with the insertion element in the same spot and a population without IS5
      • i.e.: this isn't what we want
  • empty SP1.0 (E) - innoculated at 0.0001 - grew ~14.5 hrs (picture)
  • Q04400.007 (F) - innoculated at 0.0001 - grew ~14.5 hrs (picture) (concatenated) (MATLAB analysis)




July 14, 2006

  1. Day 1: trying out mutagenic PCR on Q04720.pSB1AK3 (mnt) - the prep for this was taken from MC4100, so pJat8 isn't in there and I know how much DNA I'm adding
    • Stratagene's GeneMorph® II Random Mutagenesis kit
    • using VF2-VR (24 pmol each per 50 ul reaction)
    • three 50 ul PCR reactions: (note, I goofed, meant to do 4x these amts so I could cover low-med-high mutation frequencies but forgot to take the vector into account)
      • ~188 ng target DNA (medium range mutation freq)
      • ~75 ng target DNA (medium range mutation freq)
      • ~12.5 ng target DNA (high range mutation freq)
  2. Day 2: ran digest on a gel, did gel extraction
mutagenic PCR, lanes left to right: 188 ng, 75 ng, 12.5 ng target DNA, 1.1 kb standard (100ng)
restriction digest of Q04720 library







July 20, 2006

  • grew overnight, diluted back 50x around 2 p.m.
  • 4 penI colonies (from a plate from original glycerol)
  • tetR inverters
    • Q04400
    • Q01400