You have isolated a previously unstudied protein, identified its complete structure in detail, and determined that it is an enzyme that catalyzes the breakdown of a large substrate. You
notice it has two binding sites: one large and one small. Speculate about how this enzyme might function.
The small site is probably a binding site for a small molecule whose binding affects the enzyme's shape and function-its breakdown of the large substrate.
The enzyme works through competitive inhibition-different substrates compete for binding to each of the two sites.
It is probably a cell membrane transport protein-like an ion channel.
The enzyme catalyzes two different reactions, each with its own specific substrate.