Minnesota/14 July 2008

From 2008.igem.org

(Difference between revisions)
Line 41: Line 41:
|-
|-
|Refer to Double Digest table below.
|Refer to Double Digest table below.
 +
{|border="1" align="left"
{|border="1" align="left"

Revision as of 17:00, 14 July 2008

Back to Notebook Home
Go to Previous Day (July 11)Go to Next Day (July 15)
1. Plasmid DNA Purification Using the QIAprep: Use 2mL LB cultures of ligation products from 07-11-2008. Procedure:
a. Resuspend bacterial cells in 250uL Buffer P1 and transfer to microcentrifuge tube
b. Add 250 uL Buffer P2 and invert 4-6 times
c. Add 350uL Buffer N3 and mix immediately by inverting 4-6 times
d. Centrifuge for 10 minutes @ 13,000 rpm in a table-top centrifuge. White pellet will form (made up of cell debris).
e. Apply supernatants from step D to the QIA prep spin columns. Centrifuge for 30-60 seconds --> discard the flow through.
f. Wash the QIA prep spin column by adding 0.5mL (500uL) Buffer PB. Centrifuge for 30-60 seconds. Discard the flow through.
g. Wash QIA prep spin column by adding 0.75mL (750uL) Buffer PE. Centrifuge for 30-60 seconds. Discard the flow through.
h. Centrifuge for additional 1 minute to remove residual buffer.
i. Place the QIA prep spin column in a clean 1.5mL centrifuge tube. To elute DNA, add 50uL of Buffer EB (10mM Tris-Cl, pH 8.5) to center of spin column and centrifuge.
NOTE: Used Buffers to purify or washout any cell debris so only has DNA. Used spin column b/c the column binds to DNA (has DNA affinity) and all other solution will drain through.
2. Spectrophotometry: 'Spec' purified preps to check concentration of DNA in the ligated products. Refer Spectrophotometry Results link on Notebook page.
3. Double Digest:
GFP + Terminator => GFP:Term.
Pro/LAMBDAcI + Terminator => Pro:LAMBDAcI:Term.
Pro + LAMBDAcI/Terminator => Pro:LAMBDAcI:Term.
Refer to Double Digest table below.


Parts 10x Buffer BSA H20 DNA RE 1 RE 2
GFP (1250 ng/uL) 5.0uL 0.5uL 41.5uL 1.0uL 1.0uL, EcoRI 1.0uL, Spe1
Terminator 5.0uL 0.5uL17.5uL 25.0uL 1.0uL, Xba1 1.0uL, Pst1
Promoter/LAMBDAcI 5.0uL 0.5uL 40.5uL 2.0uL (L3b) 1.0uL, Pst1 1.0uL, Spe1
Promoter/LAMBDAcI 5.0uL 0.5uL 32.5uL 10.0uL (L3c) 1.0uL, Pst1 1.0uL, Spe1
LAMBDAcI/Terminator 5.0uL 0.5uL 27.1uL 15.4uL (L4b) 1.0uL, EcoRI 1.0uL, Xba1
LAMBDAcI/Terminator 5.0uL 0.5uL 20.3uL 22.2uL (L4c) 1.0uL, EcoRI 1.0uL, Xba1
BaseVector (35 ng/uL) 5.0uL 0.5uL 13.5uL 29.0uL 1.0uL, EcoRI 1.0uL, Pst1
TetR Promoter 5.0uL 0.5uL 8.5uL 34.0uL 1.0, EcoRI 1.0uL, Spe1