>2pr4H (H:) observed residues (from ATOM records) ritlkesgpplvkptqtltltcsfsgfslsdfgvgvgwirqppgkalewlaiiysdddkr yspslntrltitkdtsknqvvlvmtrvspvdtatyfcahrrgpgpvnamdvwgqgitvti sststkgpsvfplapssggtaalgclvkdyfpepvtvswnsgaltsgvhtfpavlqssgl yslssvvtvpssslgtqtytcnvnhkpsntkvdkrvep