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High Ct Values, low amplification - (Aug/16/2007 )

Hi guys,

I only started Realtime (sybr method) 2 weeks ago and have been getting high Ct values and low amplification (low fluorescence) of my template. I ran the reaction products on the gel and I see only 1 band. My melt curves look okay except for the fact that it has a low peak. Do you think it's possibly due to my template?

Any help would be great!

-star_jam-

Trya mgCl2 titration, and a primer concentration. Also maybe try altering your annealing temp slightly.

-avalon-

QUOTE (avalon @ Aug 16 2007, 07:54 PM)
Trya mgCl2 titration, and a primer concentration. Also maybe try altering your annealing temp slightly.


getting a qPCR experiment up and running for the first time is not trivial. You might get lucky, but if you dont, ... much optimization will be in order.

-jonathanjacobs-

Just have a look at the topics about PCR optimization. You should consider the efficiency of your primers. Very often, you will need to change the concnetrations of primers and/or template. Try doing serial dilutions of your template and your primers to find the optimal conditions.

-kr├╝melmonster-