The SCF Ubiquitin Ligase Can Recognize and Mark Various Target

Multiple Choice

The SCF ubiquitin ligase can recognize and mark various target proteins at different stages of the cell cycle. In this complex, …

A) different F-box subunits recognize different target proteins.
B) the F-box subunit and the E2 ubiquitin-conjugating enzyme are at the opposite ends of the C-shaped molecule.
C) a scaffold protein arranges the other subunits such that the two ends of the complex are separated by a gap.
D) the use of interchangeable parts such as the F-box subunits makes economical use of the genetic information and allows for rapid evolution of new functions.
E) All of the above.