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[Automated-sequencing] pDONR vector

Fulton, Ciaran ciaran.Fulton at almac-diagnostics.com
Tue May 9 02:50:09 EST 2006


Hi all....we're using the pDONR222 vector for sequencing cDNA inserts from libraries generated from the Invitrogen CloneMiner cDNA construction kit. Generally we've had no problems with this set-up but we were talking to another 3rd party recently who suggested that it might not be the most suitable vector for sequencing. It has 2 recombination sites which share near identical homology to one another and it has been suggested that if the insert is less than 1kb then these can form secondary or hairpin structures, essentially denying the primers template to prime off. There is supposed to be a Biotechniques article about it somewhere but I haven't been able to locate it. 

Has anyone any similar experiences using this or a derivative vector?

Regards,


Ciaran

Dr. Ciaran Fulton
Team Leader
Sequencing R&D Group

Almac Diagnostics Ltd
19 Seagoe Industrial Estate
Craigavon 
Co Armagh
BT63 5QD
Northern Ireland

Tel ('): +44 (0)28 38 39 57 22
Fax (7):  +44 (0)28 38 39 86 76
Email (*): ciaran.fulton at almac-diagnostics.com


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