The structure and sequence of a protein of unknown function was examined.Which of the following provides the best prediction of the protein's function?
A)the observation of several disordered α helical domains.
B)the observation of multiple protein subunits.
C)the observation of motif known as the Rossmann fold.
D)the observation of a large number of random coil regions.
E)All of the above offer excellent prediction of the protein's function.

Question

Quizplus · Accepted Answer

The observation of a motif known as the Rossmann fold is the best predictor of the protein's function as this motif is characteristic of nucleotide-binding proteins, such as enzymes involved in metabolism or signal transduction. The presence of disordered α helical domains or random coil regions does not provide specific clues about function, and the observation of multiple protein subunits could indicate a variety of functional roles.

The Structure and Sequence of a Protein of Unknown Function