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how much template do i need for pcr? - (Apr/25/2013 )

Hi this question is probably really basic but i am new at lab and would be nice if someone can answer my question.
After doing miniprep, if i wanna do pcr how much volume do people usually take? The yield seemed good on the gel. I eluted with 40. The size of the plasmid is about 6k.

-bubbletea27-

you can use around 20-40ng plasmid for PCR.

-GNANA-

Yeah thing is i dont have a machine to quantitate the concentration. How much dp you usually use?

-bubbletea27-

its hard to say, atleast one shd have an idea how much the expected conc. of your miniprep, so accordingly you can dilute.

if you think you hav a good conc from miniprep, i would say do a 1:10 dilution and use 1-1.5 microlitre for a PCR...assuming your miniprep yielded you around 250ng/microlitre.

-GNANA-

Think ill try that. Thanks~!

-bubbletea27-

you can run an aliquot on agarose with quantified size standards to get a rough idea of the concentration (and you can recover the plasmid loaded onto the gel).

-mdfenko-