Antiparallel Beta Sheet Vs Parallel - Web the key difference between parallel and antiparallel beta sheets lies in the directionality of the polypeptide. Parallel and antiparallel beta strands are much more extended than alpha helices (phi/psi of.
Parallel and antiparallel beta strands are much more extended than alpha helices (phi/psi of. Web the key difference between parallel and antiparallel beta sheets lies in the directionality of the polypeptide.