>4hrtH (H:) observed residues (from ATOM records)
srvaelanavvsnadqkdllrmswgvlsvdmegtglmlmanlfktspsakgkfarlgdvs
dnsklrghsitlmyalqnfvdalddverlkcvvekfavnhinrqisadefgeivgplrqt
lkarmgnyfdedtvaawaslvavvqaal