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Questions and Answers
Which amino acid is characterized by its sulfur-containing side chain?
Which amino acid is characterized by its sulfur-containing side chain?
- Cysteine (correct)
- Glutamine
- Serine
- Asparagine
Which amino acid introduces a structural kink in a polypeptide chain due to its cyclic structure?
Which amino acid introduces a structural kink in a polypeptide chain due to its cyclic structure?
- Alanine
- Proline (correct)
- Glycine
- Valine
Which amino acid has the smallest side chain, consisting of only a hydrogen atom?
Which amino acid has the smallest side chain, consisting of only a hydrogen atom?
- Glycine (correct)
- Serine
- Threonine
- Alanine
Which of the following amino acids contains an imidazole ring in its side chain?
Which of the following amino acids contains an imidazole ring in its side chain?
Which of the following amino acids are classified as branched-chain amino acids?
Which of the following amino acids are classified as branched-chain amino acids?
Flashcards
What is Valine (Val)?
What is Valine (Val)?
A nonpolar, hydrophobic amino acid with an isopropyl side chain.
What is Phenylalanine (Phe)?
What is Phenylalanine (Phe)?
An aromatic amino acid, bulky and nonpolar, essential for protein structure.
What is Proline (Pro)?
What is Proline (Pro)?
A unique amino acid; its cyclic structure restricts protein flexibility.
What is Serine (Ser)?
What is Serine (Ser)?
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What is Arginine (Arg)?
What is Arginine (Arg)?
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Study Notes
- Isoleucine is abbreviated as Ile.
- Leucine is abbreviated as Leu.
- Valine is abbreviated as Val.
- Methionine is abbreviated as Met.
- Phenylalanine is abbreviated as Phe.
- Tryptophan is abbreviated as Trp.
- Alanine is abbreviated as Ala.
- Proline is abbreviated as Pro.
- Tyrosine is abbreviated as Tyr.
- Cysteine is abbreviated as Cys.
- Glycine is abbreviated as Gly.
- Serine is abbreviated as Ser.
- Threonine is abbreviated as Thr.
- Asparagine is abbreviated as Asn.
- Glutamine is abbreviated as Gln.
- Histidine is abbreviated as His.
- Aspartic acid is abbreviated as Asp.
- Glutamic acid is abbreviated as Glu.
- Lysine is abbreviated as Lys.
- Arginine is abbreviated as Arg.
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Description
This content defines the abbreviations for the twenty standard amino acids. These are the basic building blocks of proteins and are essential for various biological processes. Learning these abbreviations is fundamental to understanding biochemistry and molecular biology.
