>1dx9A (A:) observed residues (from ATOM records)
kkiglfygtqtgktesvaeiirdefgndvvtlhdvsqaevtdlndyqyliigcptanige
lqsdweglyselddvdfngklvayfgtgdqigyadnfqdaigileekisqrggktvgyws
tdgydfndskalrngkfvglaldednqsdltddrikswvaqlksefgl