>5xt5C (C:) observed residues (from ATOM records)
nldtlyrqvimdhyknprnkgvlndsivvdmnnptcgdrirltmkldgdivedakfegeg
csismasasmmtqaikgkdietalsmskifsdmmqgkeyddsidlgdiealqgvskfpar
ikcatlswkalekgv