>2chpB (B:) SEQRES residues mktenaktnqtlvenslntqlsnwfllysklhrfhwyvkgphfftlhekfeelydhaaet vdtiaerllaiggqpvatvkeytehasitdggnetsasemvqalvndykqisseskfvig laeenqdnatadlfvglieevekqvwmlssylg