a) Briefly describe the overall tertiary structure of MHETase. (Approach this as in Problem 1.) How many and what kind of domains does the polypeptide have (e.g., what class)? Even if

you think that there is a single domain, would there be a way to divide it into 2 sub-domains? Specify which parts of the polypeptide below to each domain or sub- domain (unless you think that there is only 1 domain and no sub-domains).