Spacefill model of L-histidine (H).




Some facts on L-histidine.

1. Abbreviation: His.
2. One-letter code: H.
3. Molecular mass: 155 daltons.
4. Side-chain (or R-group) features:
   • Formula: -CH₂-imidazole;
   • Category: Hydrophobic or hydrophilic, when positively charged;
   • pK_a: 6.2.

Return to image of His.

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Last modified August 1, 1996