Use the one letter code to give the sequence of this peptide

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
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Use the one letter code to give the sequence of this peptide

### Structure of a Pentapeptide

This diagram illustrates the structural formula of a pentapeptide, which consists of five amino acids linked by peptide bonds. The sequence is as follows:

1. **Glutamic Acid**: The side chain features a carboxylic acid group.
2. **Valine**: Notable for its branched-chain, consisting of two methyl groups.
3. **Serine**: Contains a hydroxyl group in its side chain.
4. **Lysine**: Characterized by a longer side chain ending with an amino group.
5. **Cysteine**: Contains a thiol group in its side chain.

#### Peptide Bonds

The red circles highlight the peptide bonds (-CO-NH-) that connect the amino acids. These bonds form through a condensation reaction, which involves the removal of a water molecule.

#### General Features

- The peptide chain has an **N-terminal** at the beginning (Glutamic Acid) and a **C-terminal** at the end (Cysteine).
- Each amino acid is connected by a central alpha carbon to its side chain, which determines its unique chemical properties.
  
This diagram is an excellent representation of the complexity and variety found within protein structures, demonstrating how different amino acids contribute to the overall properties of proteins.
Transcribed Image Text:### Structure of a Pentapeptide This diagram illustrates the structural formula of a pentapeptide, which consists of five amino acids linked by peptide bonds. The sequence is as follows: 1. **Glutamic Acid**: The side chain features a carboxylic acid group. 2. **Valine**: Notable for its branched-chain, consisting of two methyl groups. 3. **Serine**: Contains a hydroxyl group in its side chain. 4. **Lysine**: Characterized by a longer side chain ending with an amino group. 5. **Cysteine**: Contains a thiol group in its side chain. #### Peptide Bonds The red circles highlight the peptide bonds (-CO-NH-) that connect the amino acids. These bonds form through a condensation reaction, which involves the removal of a water molecule. #### General Features - The peptide chain has an **N-terminal** at the beginning (Glutamic Acid) and a **C-terminal** at the end (Cysteine). - Each amino acid is connected by a central alpha carbon to its side chain, which determines its unique chemical properties. This diagram is an excellent representation of the complexity and variety found within protein structures, demonstrating how different amino acids contribute to the overall properties of proteins.
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