Compare and contrast the structure and functions of the following three proteins: a) EcoRI, b) an Argonaute protein and c) Cas9.

Compare and contrast the structure and functions of the

following three proteins: a) EcoRI, b) an Argonaute protein

and c) Cas9. In what ways are their molecular functions

similar and in what ways are they different? In nature what

processes are they commonly associated with, in what

organisms, and how have we co-opted them as tools in

molecular biology?