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an enzyme of the liver that converts histidine to urocanic acid.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
an enzyme catalyzing deamination of l-histidine to urocanate and ammonia; this enzyme is absent or deficient in people with histidinemia.
Farlex Partner Medical Dictionary © Farlex 2012
his·ti·dine am·mo·ni·a-ly·ase(his'ti-dēn ă-mō'nē-ă-lī'ās)
An enzyme catalyzing deamination of l-histidine; this enzyme is absent or deficient in people with histidinemia.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012