>2xigB (B:) observed residues (from ATOM records)
mkrletlesilerlrmsikknglknskqreevvsvlyrsgthlspeeithsirqkdknts
issvyrilnflekenfisvletsksgrryeiaakehhdhiiclhcgkiiefadpeienrq
nevvkkyqaklishdmkmfvwckecqes