You will now build a 15 amino acid peptide using another paper or wire backbone as you did above. You will pick 15 amino acids, matching the criteria below, and put them onto your backbone about 3 inches apart. This will be the primary structure of your novel protein. Select 15 amino acids that meet the following criteria 6 hydrophobic R groups 2 acidic R groups 2 basic R groups 2 cysteine R groups 3 hydrophilic R groups Place the R groups in any order you choose on your paper or wire backbone as you did above. Start at the N-terminus and place each R group about 3 inches apart until all 15 are attached to the mini toolbar. You have just built the primary structure of your protein. Question 1: Record the sequence of amino acids in your protein, starting with the N-terminus. The N-terminus is the end of the polypeptide that has a free nitrogen group. The C-terminus, or carboxyl end, will have a free carboxyl group. You can use the three letter amino acid abbreviation to list your 15 amino acids below.
You will now build a 15 amino acid peptide using another paper or wire backbone as you did above. You will pick 15 amino acids, matching the criteria below, and put them onto your backbone about 3 inches apart. This will be the primary structure of your novel protein.
Select 15 amino acids that meet the following criteria
- 6 hydrophobic R groups
- 2 acidic R groups
- 2 basic R groups
- 2 cysteine R groups
- 3 hydrophilic R groups
Place the R groups in any order you choose on your paper or wire backbone as you did above. Start at the N-terminus and place each R group about 3 inches apart until all 15 are attached to the mini toolbar. You have just built the primary structure of your protein.
Question 1: Record the sequence of amino acids in your protein, starting with the N-terminus. The N-terminus is the end of the polypeptide that has a free nitrogen group. The C-terminus, or carboxyl end, will have a free carboxyl group. You can use the three letter amino acid abbreviation to list your 15 amino acids below.
Peptides are polymers of amino acids. Proteins are primarily peptides. There are 20 general proteogenic amino acids. According to the character of the side chain (R group), amino acids are broadly classified into different groups like hydrophobic, hydrophilic, acidic, basic, etc.
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