Galactose 1-phosphate uridyl transferase (Galactosaemia)

Description
The enzyme being measured catalyses the reaction: Galactose 1-phosphate + UDP-glucose → UDP-galactose + glucose 1-phosphate. Glucose 1-phosphate formed in the reaction is converted to glucose 6-phosphate by endogenous phosphoglucomutase. Endogenous glucose 6-phosphate dehydrogenase and 6-phosphogluconate dehydrogenase result in oxidation of the glucose 6-phosphate with reduction of added NADP to NADPH which is measured fluorimetrically over 45 min.
Related condition
Reference range
Contact laboratory
Synonyms
Galactose Metabolism , Galactose 1-phosphate uridyl transferase, Galactosaemia
Testing site
Synnovis : Reference Services : Guy's Hospital
Laboratory
Biochemical Genetics
Sample type and volume required
1ml lithium heparin blood
Call in advance
No
Storage and transport
transfusion may invalidate result, carrier testing can be carried out for parents of transfused individuals
Turnaround time
2 - 5 days
Contacts

Biochemical Genetics Laboratory at Guy’s Hospital
Phone: 020 7188 2592
Email: MetabolicEnzymes@synnovis.co.uk
Genetics Department
Tower Wing – 5th Floor
Guy’s Hospital
Great Maze Pond
London SE1 9RT

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