From OpenWetWare

Jump to: navigation, search

Search this Project

Customize your entry pages

Team Members

  • Sanju Timilsina
  • Parul Sirohi

Over expression of E. coli Acetyl- CoA carboxylase (ACC)sub-unit accC in E.coli to enhance fatty acid accumulation for Bio-fuel production”.

  • Source Organism: E. coli 0157:H7�

PROJECT DESCRIPTION Our gene of interest is accC gene from E. coli 0157:H7 accC gene is the biotin subunit of ACC enzyme which catalyze the biosynthesis of Malonyl CoA. Malonyl CoA controls the rate of fatty acid (Triacylglycerol) biosynthesis. TAG is the fatty acid i.e. used for the biofuel production.In this experiment we will identify if the overexpression of accC gene in E.coli might enhance the production of TAG. For this process we will chttp://openwetware.org/skins/common/images/button_bold.pnglone our gene of interest in to plasmid pSB1A3 and transform it in host E. coli. We will do SDS-PAGE for detection of protein and thin layer chromatography for the quantification of fatty acids.

Source: Biology department of University of Northern Iowa� Media: Luria Broth� Gene: Acetyl CoA carboxylase biotin carboxylase (accC)� Accession #: NC_011353.1 Region: 4242644..4243993 total base pair- 1350� Introns: None because Bacteria does not have any introns. Bio-brick Compatibility: Compatible Plasmid used: Vector Plasmid pSB1A3 Promoter used:Part: BBa_J23100 ttgacggctagctcagtcctaggtacagtgctagc

Alternative Promoters: BBa-K206000(PBad): is strong E.coli promoter controlled by L-arabinose inducer and is repressed by AraC. J23109:RFP-106 tttacagctagctcagtcctagggactgtgctagc (is medium promoter)

PCR primers for accC gene

24F_Biofuel1P 5’gaattcgcggccgcttctagagatgctggataaaattgttattgccaaccgc 3’ 24RP_Biofuel2S 5’tactagtagcggccgctgcagcgagttttttctccagatagtggatgttagtgc3’

24F_Biofuel1 5’ atgctggataaaattgttattgccaaccgc 3’ 24RP_Biofuel2 5’ cgagttttttctccagatagtggatgttagtgc3’

Presentation:Fuel_it_up_FINAL_Slides_-_Copy_corrected_after_presentation.pptx‎ (file size: 472 KB, MIME type: application/zip)                        

  • [[Steps for project:]]

1.Grow the source organism (E. coli) 2.DNA extraction from the source (E. coli) 3.Electrophoresis to check desired DNA segment (bp) 4.Primer designing 5.Multiplication of gene of interest by PCR 6.Electrophorosis 7.Digestion of Plasmid by restriction enzymes ( cut plasmid with S+P i.e bp2 and gene of interest with X+P i.e bp 2149 and P at bp20 ) 8.Ligation of accC gene in plasmid vector (pSB1A3) 9.Transformation of vector plasmid into host organism E. coli 10.Cloning of cells in a LB media 11.Selection for recombinant DNA colonies by antibiotic selective media (LB+ ampicillin) 12.Inoculation of E.coli in biomass 13.Testing of protein Acetyl CoA carboxylase biotin carboxylage by SDS-PAGE and fatty acid by thin layer chromatography

Important Results and Milestones

  • keep track of your most important results and refer to the corresponding page in your notebook
  • upload important pictures (don't forget to label them! Powerpoint is very convenient). Remember: these will become quite handy later in your summary report or final presentation. If you do label and upload the pictures as soon as you got them, your summary report can be written much more effortlessly (do you usually procrastinate? This is chance to do some work before hand that frees you up for finals week).

Recent changes

Personal tools