>3si9A (A:) observed residues (from ATOM records)
smlkgavtalitpfddngaidekafcnfvewqitqgingvspvgttgesptltheehkri
ielcveqvakrvpvvagagsnstseavelakhaekagadavlvvtpyynrpnqrglythf
ssiakaisipiiiynipsrsvidmavetmrdlcrdfkniigvkdatgkieraseqrekcg
kdfvqlsgddctalgfnahggvgcisvssnvapklcaqlhaaclcsdyktalklndllmp
lnravfiepspagikyaaaklglcgtivrspivplsdttkkiidealyhagllk