>2xigA (A:) observed residues (from ATOM records)
mkrletlesilerlrmsikkngnskqreevvsvlyrsgthlspeeithsirqkdkntsis
svyrilnflekenfisvletsksgrryeiaakehhdhiiclhcgkiiefadpeienrqne
vvkkyqaklishdmkmfvwckecqes