This DNA sequence would produce an mRNA with UACGAUGAUAAAUUCAUAGACUCCACUAGGCUAGGGUUAG as its sequence, and a polypeptide with the amino acid sequence HisAspAspLysPheMetAspSerThrArgLeuGly. A mutation changing the underlined G to C would result in an amino acid change from glycine to alanine in the polypeptide, likely altering the 3D structure and function of the enzyme.