>5nb1D (D:) observed residues (from ATOM records)
gfllvlhsqtdqeptcplgmprlwtgysllylegqekahnqdlglagsclpvfstlpfay
cnihqvchyaqrndrsywlasaaplpmmplseeairpyvsrcavceapaqavavhsqdqs
ippcpqtwrslwigysflmhtgagdqgggqalmspgscledfraapflecqgrqgtchff
ankysfwlttvsqaqrqkisrcqvcvky