We ordered our genes. We optimized codon usage because of gene taken from
Enterobacter cloacae.
Codon Usage
Then we did
restriction digestion and gel electrophoresis.
We repeated this step a lot because of failuire.I put right result
We used standard
gel purification kit
Our ligation style is really similar to iGEM's one.
Our one;
insert volume(µl):X
Cut Vector Volume(µl):X
DEPC-water(µl):8,5-2X
T4 DNA ligase(µl):0,5
Ligation Buffer(µl):1
Total Volume(µl):10
We transformed our plasmid into E.coli with a
protocol.
We used invitrogen
purification kit to get our plasmid.
We sent genes to sequencing and sequencing data should be available on their
link.
Polymerase Chain Reaction of GFP from pKScGFP
For 1.0µl of DNA we added,
• 1.0µl of forward primer
• 1.0µl of reverse primer
• 2.5µl of 10X PCR Buffer
• 0.5µl of MgSO4
• 0.5µl of dNTP mix
• 18.375µl of ddH2O
• 0.125µl of Taq polymerase
Parameters in thermal cycler were chosen as below:
Denaturation is 95oC for 4min
Annealing is 30 cycles:
• 95oC 1min
• 65oC 1min
• 72oC 2min
Extension 72oC for 10min
4oC hold
GFP fusion
GFP fusion with nfsI gene on our Biobrick is our plannned future work.
Restriction Enzyme Digestion
We obtained nfsI gene synthetically with prefix and suffixes. Synthetic nfsI gene was restriction digested via XhoI/BamHI to create sticky ends at prefix and suffixes.
We used pRbcRL as our backbone and as an algal expression plasmid. We restriction digested luciferase gene via XhoI/BamHI restriction enzymes and created a cut vector backbone with sticky ends.
DNA ligation
Then we ligated nfsI gene to the cut vector of pRbcRL (pRbc plasmid backbone) with insert:backbone ratios of 10:1, 3:1 and 1:1. All of them gave good results.
For 10:1 nfsI:pRbc ligation tube,
Solution Volume (µl)
pRbc backbone 1.7
Insert nfsI 17.2
T4 ligase buffer (10X) 1
T4 DNA ligase 0.5
ddH2O -
Total 20
For 3:1 nfsI:pRbc ligation tube,
Solution Volume (µl)
pRbc backbone 1.7
Insert nfsI 5.2
T4 ligase buffer (10X) 1
T4 DNA ligase 0.5
ddH2O 1.6
Total 10
For 1:1 nfsI:pRbc ligation tube,
Solution Volume (µl)
pRbc backbone 1.7
Insert nfsI 1.7
T4 ligase buffer (10X) 1
T4 DNA ligase 0.5
ddH2O 5.1
Total 10
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