Question

Which of the following statements is true regarding protein structure determination?

Answer 1

Answer:

C. Mass spectrometry can be used to determine the amino acid sequences of a complex mixture of different proteins.

Explanation:

The answer is C.

Answer 2

Answer:

The answer is: B. The three-dimensional structure of a protein can be predicted reliably from its amino acid sequence using computer algorithms that access the large amount of structural information stored in public databases.

Explanation:

The prediction of the structure of proteins is the prediction or calculation of the three-dimensional structure of a protein from its amino acid sequence, that is, the prediction of its secondary and tertiary structures from its primary structure.

There are two basic strategies for approaching structure prediction: de novo prediction, in which stochastic methods are often used; and prediction by comparison, in which a library of previously known structures is used.

The secondary structure prediction is a set of bioinformatics techniques whose objective is to predict the local secondary structure of protein and RNA sequences based only on the knowledge of their primary structure of amino acids or nucleotides, respectively.

The answer is: B. The three-dimensional structure of a protein can be predicted reliably from its amino acid sequence using computer algorithms that access the large amount of structural information stored in public databases.