I have several cells transfected with a differents gene deletions fused to GFP and in order to make a qPCR to detect all the constructs, not only for the specific gene, I tried a commercial GFP marker assay from fisher (Mr03989638_mr) ,but unfortunately it did not hybridize with any of my samples, all my constructs were on LVX-acGFP1 from Takara (Clontech). Although the nucleotide sequence have little differences , protein has >90% identity, I do not understand why the assay it is not working.
I would appreciate any suggestion.