If you were to have a mythical amino acid based on glutamic acid, but one in which the hydrogen that is attached to the g-carbon were replaced by another amino group, what would be the predominant form of this amino acid at pH 4, 7, and 10, if the pKa value were 10 for the unique amino group?
Answer to relevant QuestionsIdentify the charged groups in the peptide shown in Question 4 at pH 1 and at pH 7. What is the net charge of this peptide at these two pH values? If you knew everything about the properties of the 20 common (proteinous) amino acids, would you be able to predict the properties of a protein (or large peptide) made from them? Match the following statements about protein structure with the proper levels of organization. (i) Primary structure (ii) (iii) Tertiary structure (iv) Quaternary structure (a) The three-dimensional arrangement of all ...Suggest a way in which the difference between the functions of hemoglobin and myoglobin is reflected in the shapes of their respective oxygen-binding curves. Rationalize the following observations. (a) Serine is the amino acid residue that can be replaced with the least effect on protein structure and function. (b) Replacement of tryptophan causes the greatest effect on protein ...
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