>1l3bF (F:) observed residues (from ATOM records)
mipddefiknpsvpgptamevrclimclaepgkndvavdvgcgtggvtlelagrvrrvya
idrnpeaisttemnlqrhglgdnvtlmegdapealckipdidiavvggsggelqeilrii
kdklkpggriivtailletkfeameclrdlgfdvnitelniargraldrgtmmvsrnpva
liytgv