>2b4cH (H:) observed residues (from ATOM records)
qlleqsgaevkkpgssvqvsckasggtfsmygfnwvrqapghglewmggiipifgtsnya
qkfrgrvtftadqatstaymeltnlrsddtavyycardfgpdwedgdsydgsgrgffdfw
gqgtlvtvssastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgaltsgv
htfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepksc