We have a non-typical leucine zipper in our viral protein. We can predict it using some programs, but coiled-coil cant be found. And... we have too some mutants in leucines "d" in heptads 2 and 4, even simple mutants invalidate the biologycal function of virus.
1) We need any tool for predict coiled coils (expasy dont function). To run it with wt and mutants.
2) Maybe could be a good idea, any software to predict left handed helix with 3.5 aa per turn... and see waht happends with wt and mutants.

Thanks in advance