>1vkaA (A:) observed residues (from ATOM records) savnvystsvtsdnlsrhdmlawineslqlnltkieqlcsgaaycqfmdmlfpgsialkk vkfqakleheyiqnfkilqagfkrmgvdkiipvdklvkgkfqdnfefvqwfkkffdanyd gkdydpvaarqg