Here is my story:
1. I used total RNA which I extracted from cell as template, and used AccessQuick RT-PCR Kit (Promega A1702) to do 1-step-RT-PCR. Then I ran agarose gel and got target band.
2. I used total RNA as templated and did reverse transcription with RT Kit (Appliedbiosystems 4368813), and then did PCR with PCR kit (ThermoScientific K1082). After agarose, I got either no band or the band I don't expect.
The target band I want is 1500bp.
I believe RNA and cDNA and primers are okay because 1) I ran agarose gel for RNA before next step. RNA is intact. 2) I used the cDNA in other reactions and got desired bands (from 300bp to 1200bp). 3) Primers are newly synthesized and they work in other reactions.
I feel very sad can't figure out the reason why the results are different. Has anyone met similar issue before?
Thank you guys!