Asparagine is one of the 20 amino acids that make up proteins in our body, and it is often abbreviated as the 3-letter Asn or single letter N. Asparagine’s R-group consists of an amide at the end of a short, 1 carbon bridge. This amide makes asparagine a polar or hydrophilic amino acid that dissolves easily in water. Finally, asparagine is neutral or uncharged at physiological pH.

Key Points

  • Asparagine
    • Abbreviations 
      • Asn, N
    • Chemical Structure
    • R group: -CH2-Amide
      • Amide
        • Contrast vs. Aspartate (which has carboxyl instead of amide)
      • 1 bridging methylene carbon (-CH2-)
        • Contrast vs. Glutamine (which has 2 bridging carbons)
    • Polarity
      • Polar (water soluble/hydrophilic)
    • Charge at pH 7
      • Neutral (0)