PCR with 7-deaza-2'-deoxyguanosine triphosphate

[Dale Levitzke]

HI, Greg.  Yes I have had some experiance using the 7-deaza analog.  
Most of my experiance has come from it's use in amplifying highly GC 
rich templates such as the Fragile X GCC repeat region.  7-deaza tends 
to stabalize otherwise unstable templates and aids in the amplification 
of templates that suffer from secondary structures.  I would suggest a 
7-deaza titration of 25%, 50% and 75% deaza to dGTP in your reactions.  
Also using DMSO at around 5-10% in conjunction with the above titrations 
may help as thiss will help decrease the melting temp of your template, 
goog luck !!!