The Ames test is used to detect disruption of the synthesis of this molecule, which, along with beta-alanine, is a component of the dipeptide carnosine.
This molecule's 3-methyl derivative is prevalent in actin and myosin and is used as a marker to detect starvation. A thiamine deficiency can cause an excess of ammonia to be produced as a result of the metabolism of this compound, of which wbuZ is a side product and urocanic acid is a main product. The Ames test is used to detect disruption of the synthesis of this molecule, which, along with beta-alanine, is a component of the dipeptide carnosine. Along with cysteine, tyrosine, and arginine, it is an essential amino acid in children but not in adults, and its side chain has a pKa of about 6.5. Coordinated to iron in hemoglobin, for 10 points, name this amino acid with a positively charged imidazole side chain and is abbreviated His.
This molecule's 3-methyl derivative is prevalent in actin and myosin and is used as a marker to detect starvation.
{histidine}