GFP at N-terminus

Model Organism: Worms Methods & Reagents
1

Dear Worm Community,

does anyone know a vector where you can clone GFP (or YFP, CFP or cherry) to the N-terminus of a protein, in front of a protein?
My protein carries a PDZ bindingmotiv at the C-terminus and this my somehow interfere with the protein function when GFP is fused.

Thanks,

eve-1