Writing a scientific paper...

Hello all! I am putting together a manuscript describing my recent results in the lab. I have two proteins, X and Y, that move throught the cell differently. I have measured movement of these proteins through the different areas (A and B) in cells on a microscope. I am trying to put together a sentence that describes the different dynamics of these two proteins, and this is all I can come up with: X and Y have different dynamics in the A than in the B. It doesn't sound right to me. I am not stuck on using this particular phrase, but I need to get the point across in one title sentence. Is this sentence grammatically corrrect? Thanks!