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#1 Re: rf-cloning troubles » RF cloning first PCR » 2021-06-22 13:02:20

Thank you steve. I did not genomic DNA extraction instead I picked a colony and put it in 10ul ddH2O and used 0.2ul of that as my template. I've got the expected band. I'm gonna do it another time because once I repeat it and no band was generated. 
10 X hifi Buffer 2.5 ul
dNTP 1ul
F primer  0.5ul
R primer  0.5ul
mgcl2    2ul
Betaine  6ul
Template DNA 0.2ul
hifi DNA polymerase 0.25ul
ddH2O  12.05ul
Total volume   25ul


Initial denaturation 95°c   3min
Denaturation  95°c  30s
Annealing   54°c   40s
Extention 72°c   90s
Final Extention 72°c  5min

#2 Re: rf-cloning troubles » RF cloning first PCR » 2021-06-16 12:54:05

My project
https://www.rf-cloning.org/rf_cloning_project.php?proj_id=f156fb536c46ac5e949bb89504fef51c

#3 rf-cloning troubles » RF cloning first PCR » 2021-06-16 09:01:36

Nassiima
Replies: 3

Hello everyone. I have been doing the first PCR for RF cloning for two weeks however I cannot see an expected (at 700 Kb) band instead there is a band at 200 kb. Only once I had 3 bands and one of them was the expected one. I tried it again with the same protocol and no band gained. My primers' TM are 80 and 83 C. I tried different annealing temperatures; 60, 62, 57, 54.  F primer: 54 bp and R primer: 45 bp. I would be so thankful if you give your opinion on that.

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