释义 |
galactokinase
galactokinase[gə¦lak·tə′kī‚nās] (biochemistry) An enzyme which reactsD-galactose with adenosinetriphosphate to giveD-galactose-1-phosphate and adenosine diphosphate. galactokinase
galactokinase [gah-lak″to-ki´nās] 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.ga·lac·to·ki·nase (gă-lak'tō-kī'nās), 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.ga·lac·to·ki·nase (gă-lak'tō-kī'nās) 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. See GALK See GALK |