Concept explainers
(a)
Interpretation: The number of different primary structures possible for a four-amino-acid segment of a protein, if three of the amino acids present must be identical has to be stated.
Concept introduction: The primary protein structure is the order of linking of the amino acids in proteins. The primary protein structure includes the number of amino acids linked, kind of amino acids present and the order of attachment of amino acids.
(b)
Interpretation: The number of different primary structures possible for a four-amino-acid segment of a protein, if four amino acids must be different has to be stated.
Concept introduction: The primary protein structure is the order of linking of the amino acids in proteins. The primary protein structure includes the number of amino acids linked, kind of amino acids present and the order of attachment of amino acids.
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Organic And Biological Chemistry
- Two proteins with the same amino acid composition do not have to have the same primary structure. Explain why.arrow_forwardHow many different primary structures are possible for a four-amino-acid segment of a protein if a. three of the amino acids present must be identical b. the four amino acids must be differentarrow_forwardWhy is the phrase unstructured segment of a protein somewhat of a misnomer?arrow_forward
- Which of the following describes the primary structure of proteins? a. The collective shape assumed by all of the chains in a protein containing multiple chains. b. The folding of an individual protein molecule. c. The regular repeated shape of the protein molecules backbone. d. The sequence of amino acids bonded together by peptide bonds.arrow_forwardWhat functional groups are found in all amino acids? How many different amino acids are found in naturally occurring proteins?arrow_forwardIn a pleated sheet secondary structure for a protein a. describe the general shape of the protein backbone b. describe the general locations for the amino acid R groupsarrow_forward
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