Which of the following is Position B most likely to assist the protein with?

(A) Stabilization of the substrate into the transition state during catalysis

(B) Transportation of catalyzed cargo from the nucleus to the mitochondria

(C) Creation of a homodimer through catalysis of homodimerization

(D) Attachment to the membrane by embedding into the phospholipid bilayer

The enzymatic catalysis of a reaction essential in the production of dog saliva is mediated by the protein ARKKKK60491. ARKKKK60491 is a homodimer, with each subunit being 337 amino acids. Figure 1, below, indicates a modular structure of the homodimer. Three positions are indicated on the model. Position A is the active site. Position B is a region known to have a large number of nonpolar residues. Position C is known to have a large number of charged residues.

Transcribed Image Text:

B -------- A C