Use the three-letter abbreviations to name all tripeptides containing methionine, isoleucine, and lysine.

Verified step by step guidance

1. Step 1: Identify the three-letter abbreviations for each of the amino acids involved. Methionine is abbreviated as 'Met', isoleucine as 'Ile', and lysine as 'Lys'.
2. Step 2: Understand that a tripeptide is a peptide consisting of three amino acids linked by peptide bonds. The order of these amino acids matters, as it determines the identity of the tripeptide.
3. Step 3: List all possible permutations of the three amino acids. Since there are three different amino acids, there are 3! (3 factorial) possible permutations, which equals 6.
4. Step 4: Write down each permutation using the three-letter abbreviations. The possible tripeptides are: Met-Ile-Lys, Met-Lys-Ile, Ile-Met-Lys, Ile-Lys-Met, Lys-Met-Ile, and Lys-Ile-Met.
5. Step 5: Verify that all permutations are unique and correctly represent different sequences of the amino acids. Each sequence corresponds to a distinct tripeptide.