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): S A E 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. S: A: E: What are the three-letter abbreviations for the amino acids? S: A: E: What is the overall charge of the most abundant tripeptide species at neutral pH (pH 7.0)? Enter your answer as a whole number. At physiological pH what is the best description of the chemical properties of the side chain (R group)? S: A: E: What is the overall most abundant tripeptide pH hydrophobic charge of the species below 1.0? Number Enter your answer as a whole number. What is the overall charge of the most abundant tripeptide species at pH 11.5? Enter your answer as a whole number. What type of intermolecular force could the side chains form with water? (Note that these are interactions are with water, not with other amino acids.) hydrophobic interactions ionic interactions hydrogen bonds

Explanation / Answer

a)

S: Serine

A: Alanine

E: Glutamic Acid

b)

Ser, Ala, Glu

c)

tripeptide...

at pH = 7, the charge should be about neutral

choose 0

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