Go Back   Molecular Biology Forum > Molecular Research Topics Forum > Molecular Biology Techniques > PCR - Polymerase Chain Reaction Forum
Register Blogs FAQ Members List Calendar Science Groups New! Arcade Search Today's Posts Mark Forums Read

PCR - Polymerase Chain Reaction Forum PCR - Polymerase Chain Reaction Forum. Discuss and ask questions about PCR troubleshooting, PCR protocols and methods, PCR products, and PCR theory.

pcr Videos

· · ·
pcr-polymerase-chain-reaction Video


· · ·
real-time-pcr-protocol-of-gm-soybean-dna Video


· · ·
rt-pcr-part-1 Video


PCR - Polymerase Chain Reaction Forum


PCR Optimization?

PCR - Polymerase Chain Reaction Forum

PCR - Polymerase Chain Reaction Forum. Discuss and ask questions about PCR troubleshooting, PCR protocols and methods, PCR products, and PCR theory.



Register Molecular Biology Forums
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 01-08-2006, 09:58 AM
Volunteer
Points: 2,004, Level: 28Points: 2,004, Level: 28Points: 2,004, Level: 28
Activity: 16%Activity: 16%Activity: 16%
 

Join Date: Jan 2006
Posts: 38
dnamolecule RSS Feed
Question PCR Optimization?

What is the best method for PCR Optimization?

thanks in advance
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit!
Reply With Quote
Alt Today
Advertising
Google Adsense
 
This advertising will not be shown
in this way to registered members.
Register your free account today
and become a member on
Molecular Biology Forum
Standard Sponsored Links

  #2 (permalink)  
Old 01-12-2006, 10:57 PM
admin's Avatar
Administrator
Points: 9,095, Level: 66Points: 9,095, Level: 66Points: 9,095, Level: 66
Activity: 100%Activity: 100%Activity: 100%
 
Join Date: Nov 2005
Posts: 904
Blog Entries: 3
admin RSS Feed
Cool PCR optimization is best done with one variable

PCR optimization is best done with one variable at a time, meaning you should vary your MgCL while all other conditions are kept the same. If you have access to a gradient pcr thermocycler, I would keep the reaction mix the same and just vary annealing temperatures.

Hope these tips help.
Admin.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit!
Reply With Quote
  #3 (permalink)  
Old 08-08-2006, 03:34 AM
Pipette Filler
Points: 1,333, Level: 21Points: 1,333, Level: 21Points: 1,333, Level: 21
Activity: 0%Activity: 0%Activity: 0%
 

Join Date: Aug 2006
Posts: 6
trinity84 RSS Feed
Default Re: PCR Optimization?

I've seen a nice site about PCR (ebook): www.pcrguru.com. There is a "table of contents" and according to this "table of contents" there is a whole arsenal of PCR optimization strategies.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit!
Reply With Quote
  #4 (permalink)  
Old 11-30-2006, 08:01 AM
Pipette Filler
Points: 1,168, Level: 19Points: 1,168, Level: 19Points: 1,168, Level: 19
Activity: 0%Activity: 0%Activity: 0%
 

Join Date: Nov 2006
Posts: 6
walid RSS Feed
Default Re: PCR Optimization?

I'm sorry (it's in frensh)


Outils PCR

1/ Pour convertir des pmoles de primer en nanogrammes de primer:
(a x pmoles) (0,325 ng/pmole) x (b x bases)
a étant le nombre de pmoles de primer et b le nombre de bases du primer
Par exemple : pour calculer le nombre de ng correspondant Ã* 50pmoles d'un 22mer:
(50 x 0,325ng) x (22) = 357,5ng

2/ La concentration micromolaire (µM) d'un primer est équivalente Ã* des pmoles/µl
10 pmoles de primer dans une réaction PCR de 50µl correspondent Ã* une concentration de 10pmoles/50µl= 0,2µM

3/ Pour estimer les températures de fusion (Tm) des oligonucléotides:
Tm = 81,5 + 16,6 (log10[Na+]) + 0,41(%G+C) - (675/n)
n étant le nombre de bases de l'oligonucléotide
[Na+] étant la concentration saline molaire
Par exemple : Tm d'un oligonucléotide 22mer avec 60% de G+C dans une solution de KCI 0,05M
Tm = 81,5 + 16,6(-1,30) + 24,60 - 30,68 = 53,84°C

4/ Visualisation des produits PCR
Si vous ne détectez pas le produit d'une réaction PCR, la première variable Ã* contrôler est la sensibilité de votre méthode de détection. Des quantités d'ADN inférieures Ã* 10ng ne sont pas facilement détectées en coloration par le bromure d'éthidium. Il est possible de jouer sur la durée de l'exposition en photographiant le gel ou/et de décolorer le gel pour diminuer le bruit de fond fluorescent.
__________________

Walid ELFALLEH
PhD Student
Institut des Régions Arides (IRA)
Rue Djorf - Km 22.5-
4119 Médenine Tunisie
Web: http://www.ira.rnrt.tn
E-mail: lwalidl@hotmail.com
Phone :+216 75633005
Fax : +216 75633006
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit!
Reply With Quote
  #5 (permalink)  
Old 11-30-2006, 08:22 PM
molecule2005's Avatar
Ph.D Doctorate
Points: 3,059, Level: 36Points: 3,059, Level: 36Points: 3,059, Level: 36
Activity: 16%Activity: 16%Activity: 16%
 

Join Date: Nov 2005
Posts: 154
molecule2005 RSS Feed
Default Re: PCR Optimization?

Thank you Walid, there are many French users that come to the website!

Merci!
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit!
Reply With Quote
  #6 (permalink)  
Old 01-03-2007, 04:12 PM
Pipette Filler
Points: 945, Level: 17Points: 945, Level: 17Points: 945, Level: 17
Activity: 0%Activity: 0%Activity: 0%
 

Join Date: Jan 2007
Posts: 7
saurabh23 RSS Feed
Default Re: PCR Optimization?

i m not able to optimize my pcr? can u suggest how can i start for optimization of pcr?
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit!
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Western Blot Optimization dave2006 Western Blot Forum 10 12-10-2007 11:21 AM
WB of low MW peptides- optimization? amessusa Protein Science 3 02-19-2007 01:46 PM
codon usage optimization aftabac Bioinformatics 3 08-12-2006 05:08 PM


All times are GMT. The time now is 07:29 PM.


Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
Copyright 2005-2007 Molecular Station | All Rights Reserved