>1y18B (B:) SEQRES residues evkllesggglaqpggslklscaasgfdfrrywmtwvrqapgkglewigdinpdsrtiny mpslkdkfiisrdnaknslylqlsrlrsedsalyycvrldfdvynhyyvldywgqgtsvt vssastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgaltsgvhtfpavl qssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepksc