>4zs7A (A:) observed residues (from ATOM records)
eridkqiryildgisalrketcnksnnlpkmaekdgcfqsgfneetclvkiitgllefev
yleylqnrfesseeqaravqmstkvliqflqkkaknlddpttnaslltklqwlqdmtthl
ilrsfkeflqsslralrqm