Amino Acid Metabolism — Flashcards

_____ is converted to dihydroxyphenylalanine (DOPA) via the enzyme tyrosine hydroxylase (with tetrahydrobiopterin as a cofactor)

In the muscle, glutamate transfers its NH3 group to _____, forming alanine and alpha-ketoglutarate

At the junction of the follicular cells and the follicular lumen, _____ residues of thyroglobulin react with I2 to form monoiodotyrosine (MIT) and diiodotyrosine (DIT)

Phenylketones include _____, phenyllactate, and phenylpyruvate

What enzyme deficiencies may cause homocystinuria? _____ and methionine synthase deficiencies

What are the 9 (10*) essential amino acids? _____, Valine, Threonine, Tryptophan, Isoleucine, Methionine, Histidine, Arginine*, Lysine, Leucine *Essential during periods of growth.

_____ is also called the 22nd amino acid and is encoded by UAG

In the kidney, glutamine may be broken down into _____ and glutamate via the enzyme glutaminase

Pyruvate is converted to _____ via the enzyme alanine aminotransferase (ALT) (Cahill cycle)

_____ urine is characteristically seen in multiple carboxylase deficiency.