Team:Stanford/Notebook/Lab Work/Week 3

Spring: Brainstorming | Spring Meetings

Summer: Week 1 | Week 2 | Week 3 | Week 4 | Week 5 | Week 6 | Week 7 | Week 8 | Week 9 | Week 10 | Summaries

7/5 Monday

Planning Meeting Notes

Agenda

• Design Updates
  • Analog Comparator (Chris & Alex)
  • Redundancy between the two proposals
  • Degree of phosporylation
  • Dynamic range and mechanisms

• • Digital Comparator (Francisco & Karina)
  • RSID; standardizing the design
  • Introducing a PoPs signal output

• Characteristics between the two Comparators
  • What makes the two different?

• Applications
  • Vaginal Infections/Preterm Birth

• is it really a ratio?
• Other ideas: Targeting Cancer Cells, oscillators

• Administrative Details
  • Ordering Stuff: Oligos ordering sheet, Digestion and Gel Extraction Kits?
  • Stipend?
  • Sponsorship Updates
  • MDV Presentation

Goals For the Week

• Chris & Alex
  • need to make 50x TAE
  • complete plasmids as far can get w/o kinase and phosphotase
  • order DNA sometime this week
• Francisco & Karina
  • Run orginal and new designs by Christina
  • design standard sRNA designs and place order by the end of the week

7/6 Tuesday

Greg's Notebook

• During weekly meeting got up to speed with what the team’s been doing while I was away
• Used heat-shock transformation protocol for DH5alpha to transform with the following genetic material, left to culture overnight:

Function	Part #	Distribution Location	Resistance
ribosome binding site	B0032	P1 2I	Amp
forward double terminator	B0015	P1 23L	Amp + Kan
bidirectional double terminator	B0014	P2 24C	Amp + Kan
medium constitutive promoter	J23107	P1 20A	Amp
strong constitutive promoter	J23100	P1 18C	Amp
plasmid backbone	pSB1K3	P1 5A	Kan

7/8 Thursday

Christopher's Notebook

Running a Gel of F2620, pBAD, and psb4A5:

• Make a 0.8% agarose gel (0.4 g of agarose in 50 ml of TAE)
• Heat in microwave until agarose is completely dissolved
• Add 10.0 ul of EtBr to mix (5000x for a 50 ml solution)
• let run for approximately 1 hr
• refer below for bands

      4A5     E/P 3395 bp
      I0500   E/S (on psb2K3) 1210 bp
      F2620   E/S (on pSB1A2) 1061 bp

Gel Extract the Fragments Running a Gel of PCR Product:

• first need to PCR cleanup
• then run on 1.4% agarose gel (0.7 g of agarose in 50 ml of TAE)
• this is necessary because of the 800 bp size of the fragment

Miniprep Ligations

• F2620+E0240+psb1A2
• pBAD+E0240+psb1A2

Restriction Digests PCR product F2620

Laura's Notebook

• miniprepped Alex's/Chris' liquid cultures, using Promega kit
  • 2 each of:
    • psb1K3
    • J23107
    • B0032
  • eluted in 100 uL H2O

Nanodrop Data
tube ID	260/280	260/230	ng/uL
psB1K3-1	1.77	1.08	71.3
psB1K3-2	1.73	1.01	77.8
J23107-1	1.87	1.60	116.3
J23107-2	1.90	1.74	142.0
B0032-1	1.81	1.20	68.1
B0032-2	1.83	1.32	72.5

7/9 Friday

Friday Recap Meeting

[http://docs.google.com/present/edit?id=0Ae31et9w_tAhZGZyc3R2ejJfOGNnY2drMmZz&hl=en&authkey=CPHGzfIB Weekly Leader Presentation: Karina]

Analog Comparator update: Chris

MDV Presentation Updates & Planning

• July 16, 2010 11:00 am
• Separate Meeting for planning, Tuesday 4:00 pm, Green Atrium
• Grad Students: Ryan

Administrative Details

Stipend?

• Check on Axess for Billing statements

Sponsorship Updates

Christina’s announcements:

• Start talking about Medal Requirements
• Keep in mind the wiki!
• Digitized Cloning Scheme

Medal Requirements- Presentation next week how we’re addressing those

• Collaborative, Improving Standard, Human Practice
• Idea: improving promoter database on Parts Registry
• Need to get access to parts registry to edit  e-mail Drew to e-mail them
• Gold Medal Meeting Meeting Wed Morning at 9:00 am? Send out the Doodle (Anusuya)

Next Weeks Leader: Alex

Karina's Notebook

Today's Goal: Digest GFP, RFP, and Terminators. Will do (GFP + T) and (RFP + T) ligations on monday.

Part #'s:

• GFP: E0040 (cut at S and P)
  
• RFP: E1010 (cut at S and P)
  
• Term: B1006 (cut at X and P)
  
  

Recipe

• 12.0 uL DNA
  
• 1.0 uL each enzyme
  
• 5.0 uL NEB buffer 2
  
• 5 uL BSA (10x)
  
• Sterile H20 to fill up to 50 uL
  
  

Mix and put 37º waterbath for 2 or more hours.

Making Gel
To make 50 mL of 0.8% agarose gel, add:

• .4 g agarose
  
• 50 mL TAE (1x)
  
• 10 uL EtBr
  
  

Loading the Gel

• add 10 uL loading dye (6x) to digests
  
• add 40 uL of dye + digests to wells
  
• don't forget to include wells with controls! (uncut plasmids)
  
• load 10 uL ladder
  
• run at 95 V for about an hour
  

!!note sizes of plasmids/inserts
GFP plasmid (pSB1A2) --> 2079 bp
GFP insert --> 720 bp
RFP plasmid (pSB2K3) --> 4425 bp
RFP insert --> 681 bp
Terminator plasmid (pSB1AK3) --> 3189 bp Terminator insert --> 39 bp

Gel Results
[add link to gel picture here]

All bands look fine except for, there were no bands for the terminators. They were so small they ran off the gel. We are considering using PCR purification to isolate these parts.

Gel Extraction
[http://molecool.wustl.edu/krolllab/Kroll_Lab_Protocols/Molecular%20Biology%20protocols/Cloning%20protocols%20folder/Gel%20extraction-Qiagen.pdf Follow QIAquick Gel Extraction Kit Protocol], skip isopropanol step and elute in 50 uL H20.

Gel Extraction
Part	Tubes (g)	Gel Extract + tube (g)	Gel Extract (g)
GFP	1.06	1.11	.05
RFP	1.09	1.22	.13

Laura's Lab Notebook

• worked with Karina and Francisco on digestions, gel, gel extraction (see Karina's notebook for details)
• for digestion: Francisco set up RFP, Karina set up terminator, I set up GFP