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Team:Illinois/Protocols
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**1μL dNTP mix | **1μL dNTP mix | ||
**0.3μL DNA polymerase | **0.3μL DNA polymerase | ||
| - | Run for 30s @ 98°C, then 30 cycles of the following: | + | Run for 30s @ 98°C, then 30 cycles of the following:10s @ 98°C, 30s @ 58°C, 2 min 20s @ 72°C. Incubate for 5 min @ 72°C, then analyze 5μL of the reaction in 0.8% agarose gel, looking for a ~3.1kbp fragment. |
| + | 2. Mix in 1.5μL of DpnI with remaining 45μL of reaction, incubate for 3 hr at 37°C. | ||
| + | 3. Purify reaction with NucleoSpin Extract II DNA purification kit, elute DNA in 30μL water. | ||
| + | 4. 30μL digestion reaction | ||
| + | **25μL eluted DNA | ||
| + | **3μL 10x Tango buffer | ||
| + | **2μL XbaI | ||
| + | Digest for 6 hr at 37°C, then add 1μL shrimp alkaline phosphatase (SAP) and incubate for 1 hr at 37°C. | ||
| + | |||
== '''Recipes''' == | == '''Recipes''' == | ||
Revision as of 16:57, 7 July 2009
Contents |
Protocols
This page describes protocols or includes links to protocols used in our project. Recipes used are also listed in a separate section. Protocols are organized by category.
Standard
- [http://www.biochem.northwestern.edu/morimoto/research/Protocols/I.%20Prokaryotes/A.%20Bacteriology.pdf Bacterial Culture Basics (media/plate preparation, growth, streaking, and storage)]
- [http://www.methodbook.net/dna/agarogel.html Agarose Gel Electrophoresis Protocol]
- [http://www.5prime.com/media/29661/perfectprep%20spin%20mini%20kit%20manual_5prime_1048299_072007.pdf Miniprep Protocol (PerfectPrep Spin Mini Kit)]
sRNA Characterization
Taken from: [http://www.springerlink.com.proxy2.library.uiuc.edu/content/h752r3415261357p/ A Green Fluorescent Protein (GFP)-Based Plasmid System to Study Post-Transcriptional Control of Gene Expression In Vivo]: Johannes H. Urban and Jörg Vogel, 2009
This protocol is used to characterize an E. coli small RNA and its ability to downregulate a reporter gene (GFP). The small RNA is cloned out of the E. coli chromosome and inserted into a high-copy number plasmid (pJU-334). The sRNA's target sequence is also cloned out of the E. coli chromosome and inserted into a low-copy number plasmid (pXG-10). Both plasmids are then transformed into E. coli Top10F' cells. Successful sRNA repression is indicated by a decreased level of fluorescence in the cells.
Procedure:
sRNA Expression Plasmid
1. 50μL PCR reaction
- 1μL (10-50 ng) pJU-334 template
- 0.4μL oligonucleotide pLlacOB
- 0.4μL oligonucleotide JVO-2164
- 10μL Phusion buffer
- 1μL dNTP mix
- 0.3μL DNA polymerase
Run for 30s @ 98°C, then 30 cycles of the following:10s @ 98°C, 30s @ 58°C, 2 min 20s @ 72°C. Incubate for 5 min @ 72°C, then analyze 5μL of the reaction in 0.8% agarose gel, looking for a ~3.1kbp fragment. 2. Mix in 1.5μL of DpnI with remaining 45μL of reaction, incubate for 3 hr at 37°C. 3. Purify reaction with NucleoSpin Extract II DNA purification kit, elute DNA in 30μL water. 4. 30μL digestion reaction
- 25μL eluted DNA
- 3μL 10x Tango buffer
- 2μL XbaI
Digest for 6 hr at 37°C, then add 1μL shrimp alkaline phosphatase (SAP) and incubate for 1 hr at 37°C.
Recipes
- LB Growth Media
- 1L dH20
- 10g NaCl
- 5g yeast extract
- 10g Bacto-tryptone
- Agarose Gel
- 50mL 0.5x TBE buffer
- Agarose (To determine number of grams to use, multiply volume (50mL) by percentage of gel. For example, use 1.5g of agarose in a 3% agarose gel.)
- 2.5μL ethidium bromide
Questions about our Wiki page? Please email Dave Korenchan at korench1@illinois.edu.
