What type of intermolecular forces mainly exist between the side chains of each of the following pairs of amino acids? Select the single best answer for each part below.Note: Reference the Naturally-occurring amino acids table for additional information.Part 1 of 32 Thr residueselectrostatic attractiondisulfide bondinghydrogen bondingLondon dispersion forcesPart 2 of 3Lys and AspLondon dispersion forceshydrogen bondingelectrostatic attractiondisulfide bondingPart 3 of 32 Cysteine residuesLondon dispersion forceselectrostatic attractionhydrogen bondingdisulfide bondingCheckSave For LaterSubmit Assignment
Question
What type of intermolecular forces mainly exist between the side chains of each of the following pairs of amino acids? Select the single best answer for each part below.Note: Reference the Naturally-occurring amino acids table for additional information.Part 1 of 32 Thr residueselectrostatic attractiondisulfide bondinghydrogen bondingLondon dispersion forcesPart 2 of 3Lys and AspLondon dispersion forceshydrogen bondingelectrostatic attractiondisulfide bondingPart 3 of 32 Cysteine residuesLondon dispersion forceselectrostatic attractionhydrogen bondingdisulfide bondingCheckSave For LaterSubmit Assignment
Solution
Sure, here are the answers:
Part 1 of 3: 2 Thr residues - The main intermolecular force would be hydrogen bonding. Threonine (Thr) has a polar side chain that can form hydrogen bonds.
Part 2 of 3: Lys and Asp - The main intermolecular force would be electrostatic attraction. Lysine (Lys) is positively charged and Aspartic Acid (Asp) is negatively charged, so they would attract each other.
Part 3 of 3: 2 Cysteine residues - The main intermolecular force would be disulfide bonding. Cysteine can form disulfide bonds due to the presence of a thiol group in its side chain.
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