Answer the following seven questions (a through g) based upon a tripeptide seque

Question

Answer the following seven questions (a through g) based upon a tripeptide sequence with the following amino acids (one-letter symbols are given): TV D a) What are the full names of the amino acids? Spelling counts, but capitalization does not. For an acidic amino acid, assume it is ionized and use the -ate ending instead of -ic acid. b) What are the three-letter abbreviations for the amino acids? c) What is the overall charge of the most abundant tripeptide species at neutral pH (pH 7.0)? Number Enter your answer as a whole number. d) At physiological pH, what is the best description of the chemical properties of the side chain (R group)? T: Select answer T3 V: Select answer a D: Select answer hydrophobic polar, uncharged negatively charged continued positively charged

Explanation / Answer

a) T : Threonate V: Valate D: Aspartate
b) T : Thr V: Val D: Asp
c) The overall charge will be -1
d) T : Polar uncharged V : Hydrophobic D : negatively charged
e) Overall charge below pH 1 will be +1
f) The overall charge at pH 11.5 will be -2
g) Hydrogen bonds are prevalent

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