G4256
Galactose-1-phosphate Uridyltransferase from galactose-adapted yeast
Type IV, lyophilized powder, 20-60 units/mg protein (modified Warburg-Christian)
Synonym(s):
GALT, UDP glucose:α-D-galactose-1-phosphate uridyltransferase
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About This Item
CAS Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54
type
Type IV
Quality Level
form
lyophilized powder
specific activity
20-60 units/mg protein (modified Warburg-Christian)
composition
Protein, 15-35%
foreign activity
6-phosphogluconate dehydrogenase ≤0.5%
UDP glucose pyrophosphorylase and galactokinase ≤0.2%
storage temp.
−20°C
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General description
Research area: Cell Signaling
Galactose-1-phosphate uridyltransferase (GALT) is a galactose metabolizing enzyme that facilitates the simultaneous conversion of uridine diphosphoglucose (UDP-glucose) and galactose-1-phosphate (gal-1P) to uridine diphosphogalactose (UDP-galactose) and glucose-1-phosphate. Classic Galactosemia (CG) is an inherited metabolic condition caused by deficiency of GALT activity. GALT gene is mapped to human chromosome 9p13. Deficiency of GALT results in type 1 galactosemia.
Galactose-1-phosphate uridyltransferase (GALT) is a galactose metabolizing enzyme that facilitates the simultaneous conversion of uridine diphosphoglucose (UDP-glucose) and galactose-1-phosphate (gal-1P) to uridine diphosphogalactose (UDP-galactose) and glucose-1-phosphate. Classic Galactosemia (CG) is an inherited metabolic condition caused by deficiency of GALT activity. GALT gene is mapped to human chromosome 9p13. Deficiency of GALT results in type 1 galactosemia.
Application
Galactose-1-phosphate Uridyltransferase from galactose-adapted yeast has been used to perform enzyme assays.
Physical form
Contains buffer salts as citrate and reduced glutathione
Other Notes
One unit will form 1.0 μmole of glucose 1-phosphate from UDP-glucose, galactose 1-phosphate and NADP+ per min at pH 8.7 at 25 °C as detected by a coupled system using phosphoglucomutase.
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Regulatory Information
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E Crushell et al.
Journal of inherited metabolic disease, 32(3), 412-415 (2009-05-07)
Classical galactosaemia is relatively common in Ireland due to a high carrier rate of the Q188R GALT mutation. It is screened for using a bacterial inhibition assay (BIA) for free galactose. A Beutler assay on day one of life is
En route to deoxygenated N-acetyllactosamine analogues employing uridyl and galactosyl transferases.
Daniel Lazarevic et al.
Carbohydrate research, 344(12), 1449-1452 (2009-06-30)
All monodeoxygenated galactoses were treated with galactokinase, and for the 2-, 3-, and 4-deoxy compounds, transformation into the corresponding galactopyranosyl phosphates could be observed. In case of the 2-deoxy derivative, further reaction via UDP-2-deoxy-D-lyxo-hexose (UDP-2-deoxygalactose), which was also obtained chemically
Neonatal screening, clinical features and genetic testing for galactosemia.
Marco Zaffanello et al.
Genetics in medicine : official journal of the American College of Medical Genetics, 7(3), 211-212 (2005-03-19)
Nir Dai et al.
Plant physiology, 142(1), 294-304 (2006-07-11)
The Cucurbitaceae translocate a significant portion of their photosynthate as raffinose and stachyose, which are galactosyl derivatives of sucrose. These are initially hydrolyzed by alpha-galactosidase to yield free galactose (Gal) and, accordingly, Gal metabolism is an important pathway in Cucurbitaceae
Jason G McCoy et al.
Biochemistry, 45(10), 3154-3162 (2006-03-08)
The X-ray crystal structure of the At5g18200.1 protein has been determined to a nominal resolution of 2.30 A. The structure has a histidine triad (HIT)-like fold containing two distinct HIT-like motifs. The sequence of At5g18200.1 indicates a distant family relationship
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