tyarovin at blue.weeg.uiowa.edu
Thu Jul 16 11:42:42 EST 1998
On Thu, 16 Jul 1998, Thomas Eitinger wrote:
> could anybody give me a short definition/explanation for "touch-down
As I understand touchdown PCR you start cycling with high annealing
temperature (above melting point) and lower it for 0.5-1 degree each cycle
during first ~15 cycles. Using touchdown favors better proportion of
correctly amplified products if you had nonspecific amplification.
See ref: Ault, GS et al. (1994) J Virol Methods 46, 145 and brochure "PCR
Protocols and Reference Guide" from Promega.
University of Iowa
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