What is the 20 amino acids that make up a protein and whose side chain forms...
Homework Answers
- An amino acid is an organic compound characterized by having a carboxyl group(-COOH), amino group(NH2), and side chain attached to a central carbon atom.
- Amino acids are used as precursors for other molecules in the body. Condensation of amino acids forms polypeptides which in turn may be modified and combined to form proteins.
- Below are the 20 amino acids which form protein in our body with their three letter and one letter codes :
- Arginine - Arg - R
• Lysine - Lys - K
• Aspartic acid - Asp - D
• Glutamic acid - Glu - E - Glutamine - Gln - Q
• Asparagine - Asn - N
• Histidine - His - H
• Serine - Ser - S
• Threonine - Thr - T
• Tyrosine - Tyr - Y
• Cysteine - Cys - C - Tryptophan - Trp - W
• Tyrosine - Tyr - Y
• Methionine - Met - M - Alanine - Ala - A
• Isoleucine - Ile - I
• Leucine - Leu - L
• Methionine - Met - M
• Phenylalanine - Phe - F
• Valine - Val - V
• Proline - Pro - P
• Glycine - Gly - G
Fe2+ in hemoglobin is co-ordinated by Histidine side chain. The following structure will clear how Histidine is attached to Fe2+ :
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What is the 20 amino acids that make up a protein and whose side
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