>4qz7H (H:) observed residues (from ATOM records)
ttivgvkfnngvviaadtrstqgpivadkncaklhrispkiwcagagtaadteavtqlig
snielhslytsreprvvsalqmlkqhlfkyqghigaylivagvdptgshlfsihahgstd
vgyylslgsgslaamavleshwkqdltkeeaiklasdaiqagiwndlgsgsnvdvcvmei
gkdaeylrnyltpnvreekqksykfprgttavlkesivnicd