Details of Protein

General Information of Protein (ID: PRT01618)
Name UDP-glucose 4-epimerase (GALE)
Synonyms   Click to Show/Hide Synonyms of This Protein
Galactowaldenase; UDP-N-acetylgalactosamine 4-epimerase; UDP-GalNAc 4-epimerase; UDP-N-acetylglucosamine 4-epimerase; UDP-GlcNAc 4-epimerase; UDP-galactose 4-epimerase; GALE
Gene Name GALE Gene ID
2582
UniProt ID
Q14376
Family Isomerases (EC 5)
EC Number   EC: 5.1.3.2  (Click to Show/Hide the Complete EC Tree)
Isomerase
Racemase/epimerase
Carbohydrate racemase/epimerase
EC: 5.1.3.2
  Click to Show/Hide the Molecular/Functional Data (Sequence/Structure/Function) of This Protein
Sequence
MAEKVLVTGGAGYIGSHTVLELLEAGYLPVVIDNFHNAFRGGGSLPESLRRVQELTGRSV
EFEEMDILDQGALQRLFKKYSFMAVIHFAGLKAVGESVQKPLDYYRVNLTGTIQLLEIMK
AHGVKNLVFSSSATVYGNPQYLPLDEAHPTGGCTNPYGKSKFFIEEMIRDLCQADKTWNA
VLLRYFNPTGAHASGCIGEDPQGIPNNLMPYVSQVAIGRREALNVFGNDYDTEDGTGVRD
YIHVVDLAKGHIAALRKLKEQCGCRIYNLGTGTGYSVLQMVQAMEKASGKKIPYKVVARR
EGDVAACYANPSLAQEELGWTAALGLDRMCEDLWRWQKQNPSGFGTQA
Structure
1EK5 ; 1EK6 ; 1HZJ ; 1I3K ; 1I3L ; 1I3M ; 1I3N
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.
Regulatory Network
Full List of Metabolite(s) Regulating This Protein
      Organic acids and derivatives
            Arginine Click to Show/Hide the Full List of Regulating Pair(s):   1 Pair(s)
               Detailed Information Metabo  Info click to show the details of this metabolite
               Regulating Pair Experim Info click to show the details of experiment for validating this pair [1]
                      Introduced Variation Arginine decrease (48 hours)
                      Induced Change GALE protein abundance levels: increase (FC = 2.2)
                      Summary Introduced Variation         Induced Change 
                      Disease Status Colon cancer [ICD-11: 2B90]
                      Details It is reported that arginine decrease causes the increase of GALE protein abundance compared with control group.
References
1 Arginine deficiency in preconfluent intestinal Caco-2 cells modulates expression of proteins involved in proliferation, apoptosis, and heat shock response. Proteomics. 2007 Feb;7(4):565-577.

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