20.109(S08):Module 1

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#'''DNA double-strand break repair: From mechanistic understanding to cancer treatment'''<br>''DNA Repair'' 2007<br> Thomas Helleday, Justin Lo, Dik C. van Gent, Bevin P. Engelward<br> [http://web.mit.edu/engelward-lab/publications.htm URL]
#'''DNA double-strand break repair: From mechanistic understanding to cancer treatment'''<br>''DNA Repair'' 2007<br> Thomas Helleday, Justin Lo, Dik C. van Gent, Bevin P. Engelward<br> [http://web.mit.edu/engelward-lab/publications.htm URL]
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#'''Pathways for mitotic homologous recombination in mammalian cells'''<br>''Mutation Research'' 27 November 2003<br> Thomas Helleday<br> [http://dx.doi.org/10.1016/j.mrfmmm.2003.08.013 URL]
 
#'''Homologous recombination as a mechanism of carcinogenesis'''<br>'' Biochim Biophys Acta'' 21 March 2001<br> Bishop AJ and Schiestl RH<br> [http://dx.doi.org/10.1016/S0304-419X(01)00018-X URL]
#'''Homologous recombination as a mechanism of carcinogenesis'''<br>'' Biochim Biophys Acta'' 21 March 2001<br> Bishop AJ and Schiestl RH<br> [http://dx.doi.org/10.1016/S0304-419X(01)00018-X URL]
#'''Rad51-deficient vertebrate cells accumulate chromosomal breaks prior to cell death'''<br>'' EMBO J'' 15 January 1998<br> E Sonoda, M S Sasaki, J M Buerstedde, O Bezzubova, A Shinohara, H Ogawa, M Takata, Y Yamaguchi-Iwai, and S Takeda<br> [http://www.pubmedcentral.gov/picrender.fcgi?artid=1170409&blobtype=pdf PDF reprint]
#'''Rad51-deficient vertebrate cells accumulate chromosomal breaks prior to cell death'''<br>'' EMBO J'' 15 January 1998<br> E Sonoda, M S Sasaki, J M Buerstedde, O Bezzubova, A Shinohara, H Ogawa, M Takata, Y Yamaguchi-Iwai, and S Takeda<br> [http://www.pubmedcentral.gov/picrender.fcgi?artid=1170409&blobtype=pdf PDF reprint]

Revision as of 12:11, 10 December 2007

20.109(S08): Laboratory Fundamentals of Biological Engineering

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Contents

Module 1

Instructors: Bevin Engelward and Agi Stachowiak

TA: David Weingeist

In this experimental module you will modify the gene for EGFP (Enhanced Green Fluorescent Protein) to truncate the protein it encodes. Cells expressing the full-length protein glow green when exposed to light of the appropriate wavelength. You will be designing and then creating an expression vector to delete the first 32 amino acids of EGFP. Cells transfected with your expression vector should not glow green, a prediction you will test. You will also test whether this N-terminally truncated EGFP can recombine with a C-terminally truncated version to regenerate full length EGFP in vivo. Finally, you will have the opportunity to suggest changes to the experimental protocol that will increase the frequency of green cells in which there has been an inter-plasmid recombination event. We will then choose a few variables to test on the final day of the experiment.

Recombocell image from Dominika Wiktor of the Engelward Lab
Recombocell image from Dominika Wiktor of the Engelward Lab


A schematic overview of the module.
A schematic overview of the module.


Timetable of the module.
Timetable of the module.


Lab handouts

Day 1: DNA engineering using PCR (you will also need weblinks, below)

Day 2: Clean and cut DNA

Day 3: Agarose gel electrophoresis

Day 4: DNA ligation and bacterial transformation

Day 5: Examine candidate clones

Day 6: Restriction map and tissue culture

Day 7: Lipofection

Day 8: FACS analysis


Module 1 lab report schedule and guidelines

DNA engineering web links

Engelward lab resources: https://web.mit.edu/bevin/www/UltiMouse/

pCX-EGFP plasmid map: https://web.mit.edu/bevin/www/UltiMouse/pCX-EGFP.pdf Image:Macintosh HD-Users-nkuldell-Desktop-pCX-EGFP.doc

ORF finder: http://www.ncbi.nlm.nih.gov/gorf/gorf.html

NCBI: http://www.ncbi.nlm.nih.gov/

Cybergene: http://www.cybergene.se/primer.html

New England Biolabs: http://www.neb.com/nebecomm/default.asp

References

Note: PDF reprints are provided below within the context of fair use. Please obtain copies from the publisher if appropriate.

  1. DNA double-strand break repair: From mechanistic understanding to cancer treatment
    DNA Repair 2007
    Thomas Helleday, Justin Lo, Dik C. van Gent, Bevin P. Engelward
    URL
  2. Homologous recombination as a mechanism of carcinogenesis
    Biochim Biophys Acta 21 March 2001
    Bishop AJ and Schiestl RH
    URL
  3. Rad51-deficient vertebrate cells accumulate chromosomal breaks prior to cell death
    EMBO J 15 January 1998
    E Sonoda, M S Sasaki, J M Buerstedde, O Bezzubova, A Shinohara, H Ogawa, M Takata, Y Yamaguchi-Iwai, and S Takeda
    PDF reprint
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