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an enzyme that catalyzes the first step in the metabolism of galactose, the transfer of a phosphate group from ATP to galactose, producing galactose-1-phosphate.
galactokinase deficiency a rare type of galactosemia transmitted as an autosomal recessive trait, caused by a deficiency of galactokinase. The only clinical manifestation is the development of cataracts during the first year of life, which can be prevented by a low-galactose diet.
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 (a phosphotransferase) that, in the presence of ATP, catalyzes the phosphorylation of d-galactose to d-galactose-1-phosphate, the first step in the metabolism of d-galactose; galactokinase is deficient in one form of galactosemia.
Farlex Partner Medical Dictionary © Farlex 2012
An enzyme (phosphotransferase) that, in the presence of adenosine triphosphate, catalyzes the phosphorylation of d-galactose to d-galactose-l-phosphate, the first step in the metabolism of d-galactose; galactokinase is deficient in one form of galactosemia.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012