(a) A newly discovered protein (enzyme A) is 52-residues in length and contains a high frequency of Leu and Ala residues. A sample of enzyme A dissolved in water gives amide I band frequencies (deconvoluted) in an FTIR spectrum between 1,654 cm-1 and 1,658 cm-1. A circular dichroism spectrum of enzyme A exhibits a double minima in the molar ellipticity at 208 nm and 222 nm and a maximum around 190 nm. What type of secondary structure could you infer is present in enzyme A from the information given above? Explain your answer. (4 marks)