Recombinant Human UDP-glucose 4-epimerase (GALE)

Code CSB-EP613499HU
MSDS
Size $224
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Product Details

Purity
Greater than 90% as determined by SDS-PAGE.
Target Names
GALE
Uniprot No.
Research Area
Cell Biology
Alternative Names
FLJ95174; FLJ97302; Galactose 4 epimerase UDP; Galactowaldenase; galE; GALE_HUMAN; OTTHUMP00000002991; OTTHUMP00000002994; OTTHUMP00000037931; OTTHUMP00000044857; SDR1E1; short chain dehydrogenase/reductase family 1E member 1; UDP galactose 4 epimerase; UDP galactose 4' epimerase; UDP glucose 4 epimerase; UDP-galactose 4-epimerase; UDP-glucose 4-epimerase
Species
Homo sapiens (Human)
Source
E.coli
Expression Region
1-348aa
Target Protein Sequence
MAEKVLVTGGAGYIGSHTVLELLEAGYLPVVIDNFHNAFRGGGSLPESLRRVQELTGRSVEFEEMDILDQGALQRLFKKYSFMAVIHFAGLKAVGESVQKPLDYYRVNLTGTIQLLEIMKAHGVKNLVFSSSATVYGNPQYLPLDEAHPTGGCTNPYGKSKFFIEEMIRDLCQADKTWNAVLLRYFNPTGAHASGCIGEDPQGIPNNLMPYVSQVAIGRREALNVFGNDYDTEDGTGVRDYIHVVDLAKGHIAALRKLKEQCGCRIYNLGTGTGYSVLQMVQAMEKASGKKIPYKVVARREGDVAACYANPSLAQEELGWTAALGLDRMCEDLWRWQKQNPSGFGTQA
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight
54.3kDa
Protein Length
Full Length
Tag Info
N-terminal 6xHis-SUMO-tagged
Form
Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer
If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.
Note: If you have any special requirement for the glycerol content, please remark when you place the order.
If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA
Please contact us to get it.

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Target Background

Function
Catalyzes two distinct but analogous reactions: the reversible epimerization of UDP-glucose to UDP-galactose and the reversible epimerization of UDP-N-acetylglucosamine to UDP-N-acetylgalactosamine. The reaction with UDP-Gal plays a critical role in the Leloir pathway of galactose catabolism in which galactose is converted to the glycolytic intermediate glucose 6-phosphate. It contributes to the catabolism of dietary galactose and enables the endogenous biosynthesis of both UDP-Gal and UDP-GalNAc when exogenous sources are limited. Both UDP-sugar interconversions are important in the synthesis of glycoproteins and glycolipids.
Gene References into Functions
  1. Mutation in UDP-galactose-4'-epimerase gene is associated with UDP-galactose-4'-epimerase deficiency. PMID: 26565537
  2. Data show the protein structure of GALE and its substrate binding and specificity. It is mutated in type III galactosemia. [review] PMID: 26162744
  3. human UDP-galactose 4'-epimerase stability is increased by variants associated with type III galactosemia but decreased by substrate and cofactor binding PMID: 25150110
  4. These data indicated a critical role of GALE in maintaining cartilage homeostasis, and suggested that GALE inhibition might contribute to OA progress. PMID: 25201731
  5. GALE variants can be arranged into three groups depending on the severity of enzyme impairment. PMID: 23644136
  6. P.K161N-hGALE causes its effects by abolishing an important interaction between the protein and the cofactor. PMID: 22613355
  7. study of hGALE crystal structure and demonstration that residue 307 acts as a gatekeeper mediating substrate access to the hGALE active site PMID: 15175331
  8. Resulst describe the relationship among UDP-galactose 4'-epimerase activity, substrate specificity, metabolic balance, and galactose sensitivity in mammalian cells. PMID: 15701638
  9. Data suggest that reduced catalytic efficiency and increased proteolytic susceptibility of UDP-galactose 4-epimerase are causative factors in type III galactosemia. PMID: 16302980
  10. Subtle biochemical and metabolic abnormalities detected in patients expressing these GALE alleles likely reflect, at least in part, the reduced enzymatic activity of the encoded GALE proteins. PMID: 18188677
  11. Our observations show that altered protein stability is due to misfolding and that loss or reduction of enzyme activity is responsible for the molecular defects underlying GALE-deficiency galactosemia. PMID: 19250319
  12. Disease-causing mutations result in a variety of changes to the steady-state parameters. Mostly these are changes in turnover number, kcat. The ability to dimerize is not affected, but some mutants have increased sensitivity to protease digestion. PMID: 16302980

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Involvement in disease
Epimerase-deficiency galactosemia (EDG)
Protein Families
NAD(P)-dependent epimerase/dehydratase family
Database Links

HGNC: 4116

OMIM: 230350

KEGG: hsa:2582

STRING: 9606.ENSP00000363621

UniGene: Hs.632380

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