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Histidine ammonia-lyase

histidine ammonia-lyase n.
An enzyme that catalyzes the deamination of histidine to urocanate. Also called histidase, histidinase.


Read Also:

  • Histidine decarboxylase

    histidine decarboxylase n. An enzyme that catalyzes the decarboxylation of histidine to histamine.

  • Histidinemia

    histidinemia his·ti·di·ne·mi·a (hĭs’tĭ-də-nē’mē-ə) n. A hereditary disorder characterized by an elevation of histidine levels in the blood, excretion of histidine in the urine due to deficient histidase activity, and often manifested clinically by mild mental retardation.

  • Histidinuria

    histidinuria his·ti·di·nu·ri·a (hĭs’tĭ-də-nur’ē-ə, -nyur’-) n. The excretion of excessive histidine in the urine.

  • Histidyl

    histidyl his·ti·dyl (hĭs’tĭ-dĭl’) n. The univalent radical, C6H8N3O2, of histidine.

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