>1nnrB (B:) observed residues (from ATOM records)
mltglnhltlavadlpasiafyrdllgfrlearwdqgaylelgslwlclsrepqyggpaa
dythyafgiaaadfarfaaqlrahgvrewkqnrsegdsfyfldpdghrleahvgdlrsrl
aacrqapyagmrfa