Concept explainers
(a)
Interpretation:
The structure of lysine should be drawn above its isoelectric point.
Concept Introduction:
Amino acids are called as zwitterions. At all the pH ranges, they consist an ionic character. At low pH, an amino acid is a positive ion and at high pH it is negative ion. Amino acids have equal positive and negative charges at an intermediate pH. This pH is mentioned as an isoelectric point.
(b)
Interpretation:
The structure of lysine should be drawn below its isoelectric point.
Concept Introduction:
Amino acids are called as zwitterions. At all the pH ranges, they consist an ionic character. At low pH, an amino acid is a positive ion and at high pH it is negative ion. Amino acids have equal positive and negative charges at an intermediate pH. This pH is mentioned as an isoelectric point.
(c)
Interpretation:
The structure of lysine should be drawn at its isoelectric point.
Concept Introduction:
Amino acids are called as zwitterions. At all the pH ranges, they consist an ionic character. At low pH, an amino acid is a positive ion and at high pH it is negative ion. Amino acids have equal positive and negative charges at an intermediate pH. This pH is mentioned as an isoelectric point.
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Chapter 22 Solutions
Introduction to General, Organic and Biochemistry
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- 22-64 If both cysteine residues on the B chain of insulin were changed to alanine residues, how would it affect the quaternary structure of insulin?arrow_forward22-16 Which amino acids in Table 22-1 have more than one stereocenter?arrow_forwardWhich is NOT a characteristic of proteins? a. They contain genetic information. b. They can act as hormones. c. They can catalyze chemical reactions. d. They act in cell membrane trafficking.arrow_forward
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