Boston UniversityStatus

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Revision as of 19:31, 10 June 2007

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What We've Accomplished

Plasmid Choice

Restriction Enzyme Choice

Primer Design

Week's (Ambitious) Goals

Week of 6/4:

1. Evaluate the transformation that was done on Friday.

2. Confirm the correct plasmid (pJQ200)

3. Find appropriate restriction enzymes that cut by BLASTing all the plasmid's restriction enzyme sites onto the global transcription factors.

4. Re-design primers for the global transcription factors based on the restriction enzymes we have selected.

5. Order primers.

6. Practice regular (non-error prone) PCR with the primers to check that they work.

7. Incorporate the global transcription factors into the plasmid and transform this plasmid into the E.coli.

8. Conjugate this plasmid into Shewy.

Materials We Need

Error-Prone PCR: Need to Buy

Ligases: Need to Buy?

Short-Term To-Do List

Ordering of Error-Prone PCR Materials: Not completed

Thank-You Letters sent to Pfizer: Not Completed

Thank-You Letters sent to BU ppl: Not completed

Protocols

Calcium Chloride/Heat Shock Plasmid Transformations Protocol

Filter Cojugation Protocol

Question and Answer

Can we get the kanR gene with appropriate sticky ends for BsaI and Tth111I? (DB)

yeah, we can get the DNA template for the kanR gene from the lab. we'll need to design some primers to PCR amplify it out with the BsaI and Tth111I cut sites. after cutting with the restriction enzymes, the kanR will have the appropriate sticky ends. frank suggested that we try ligating the kanR gene to the global regulator gene. (ie. kanR ligated to hlyU) and then stick that into the pJQ200. this way we can select for succesfull hlyU transformations with kanamycin

Ok, good. Do those primers still need to be ordered? And if we follow Frank's suggestion, what will go in place of the gtmR gene?

the hlyU-kanR gene will be inserted into gmtR. the sacB will be left untouched if this method is used.

the other method we can do is to just kill the gmtR gene, then insert hlyU into sacB. we will then add sucrose so any bacteria with a sacB site will die. since hlyU will be interrupting the sacB site, successfull transformations with hlyU will survive the sucrose selection

Also, can someone update the primer design section?

Also also, have thank you letters been sent?

i'll get on both of those by monday's end

Relevant Publications and Links

http://www.shewybase.bu.edu

https://www.atcc.org/common/catalog/numSearch/numResults.cfm?collection=mb-vector&atccNum=77482

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