>2fpx_B mol:protein length:176 Histidine biosynthesis bifunctional protein hisB MGSSHHHHHHGSSQKYLFIDRDGTLISEPPSDFQVDRFDKLAFEPGVIPQLLKLQKAGY KLVMITNQDGLGTQSFPQADFDGPHNLMMQIFTSQGVQFDEVLICPHLPADECDCRKPK VKLVERYLAEQAMDRANSYVIGDRATDIQLAENMGINGLRYDRETLNWPMIGEQLTRR