Richard Lab:mRNA quantification: Difference between revisions

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This page is for mRNA quantification;
This page is for mRNA quantification using qPCR;
===RNA extraction===
===RNA extraction===
1.Use a kit or take a lookt at [[RNA extraction|this hub page]]
1.Use a kit or take a look at [[RNA extraction|this hub page]]<br>
2.Be really carefull when you do this, use DEPC water and some kind of RNAase degrading spray.
2.Be really carefull when you do this, use DEPC water and some kind of RNAase degrading spray.<br
===You can use a a reverse transcription PCR for this
3.Typical concentrations after extraction are 500-1000ng/μL.


===Reverse Transcription===
===Reverse Transcription===
1.Prepare the foloowing reaction mix (in this order):
You could just run RT-qPCR or you can do a two step procedure at use this protocol
::*2μL Nuclease free water
1.Dilute the necessary reagents.
::*1μL Random hexamer mix (60μM)
::*RNA Diluted to 5ng/μL
::**Typically a 1:100 dilution
::*Gene-specific primer mix diluted to 10μM
::**e.g. If using three primers at 100μM each add 10μL of each primer to 70μL water.
::**Only the reverse primer is necessary (in the opposite direction of the promoter) 
2.Prepare the following reaction mix (in this order):
::*2μL DEPC water
::*1μL random hexamer mix (60μM)
::**Alternately 1μL gene specific primer mix (10mM each)
::*5μL AMV reaction mix
::*5μL AMV reaction mix
::*1μL RNA from extraction (500-1000ng/μL)
::*1μL RNA from extraction (500-1000ng/μL)
::*1μL AMV reverse transcriptase
::*1μL AMV reverse transcriptase
2.Incubate at 25°C for 5 min.  
3.Incubate at 25°C for 5 min.  
3.Incubate at 42°C for 1 hour.
4.Incubate at 42°C for 1 hour.
4.Inactivate enzyme at 80°C for 5 minutes.
5.Inactivate enzyme at 80°C for 5 minutes.
5.Add 20μL nuclease free water.
6.Add 20μL nuclease free water.
6.Store at -20°C.
7.Store at -20°C.

Latest revision as of 14:59, 29 October 2011

This page is for mRNA quantification using qPCR;

RNA extraction

1.Use a kit or take a look at this hub page
2.Be really carefull when you do this, use DEPC water and some kind of RNAase degrading spray.<br 3.Typical concentrations after extraction are 500-1000ng/μL.

Reverse Transcription

You could just run RT-qPCR or you can do a two step procedure at use this protocol 1.Dilute the necessary reagents.

  • RNA Diluted to 5ng/μL
    • Typically a 1:100 dilution
  • Gene-specific primer mix diluted to 10μM
    • e.g. If using three primers at 100μM each add 10μL of each primer to 70μL water.
    • Only the reverse primer is necessary (in the opposite direction of the promoter)

2.Prepare the following reaction mix (in this order):

  • 2μL DEPC water
  • 1μL random hexamer mix (60μM)
    • Alternately 1μL gene specific primer mix (10mM each)
  • 5μL AMV reaction mix
  • 1μL RNA from extraction (500-1000ng/μL)
  • 1μL AMV reverse transcriptase

3.Incubate at 25°C for 5 min. 4.Incubate at 42°C for 1 hour. 5.Inactivate enzyme at 80°C for 5 minutes. 6.Add 20μL nuclease free water. 7.Store at -20°C.