ID:GALT_HUMAN DESCRIPTION: RecName: Full=Galactose-1-phosphate uridylyltransferase; Short=Gal-1-P uridylyltransferase; EC=2.7.7.12; AltName: Full=UDP-glucose--hexose-1-phosphate uridylyltransferase; CATALYTIC ACTIVITY: UDP-alpha-D-glucose + alpha-D-galactose 1- phosphate = alpha-D-glucose 1-phosphate + UDP-alpha-D-galactose. COFACTOR: Binds 1 iron ion per subunit (Potential). COFACTOR: Binds 1 zinc ion per subunit (Potential). BIOPHYSICOCHEMICAL PROPERTIES: Kinetic parameters: KM=1.25 mM for alpha-D-galactose 1-phosphate (at pH 8.7); KM=0.43 mM for UDP-glucose (at pH 8.7); Vmax=48 umol/min/mg enzyme; PATHWAY: Carbohydrate metabolism; galactose metabolism. SUBUNIT: Homodimer (Probable). DISEASE: Defects in GALT are the cause of galactosemia (GALCT) [MIM:230400]. Galactosemia is an inherited disorder of galactose metabolism that causes jaundice, cataracts, and mental retardation. SIMILARITY: Belongs to the galactose-1-phosphate uridylyltransferase type 1 family. WEB RESOURCE: Name=Galactose-1-Phosphate Uridyl Transferase (GALT); Note=Galactosemia mutation database; URL="http://arup.utah.edu/database/GALT/GALT_welcome.php"; WEB RESOURCE: Name=GeneReviews; URL="http://www.ncbi.nlm.nih.gov/sites/GeneTests/lab/gene/GALT";
The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.
ModBase Predicted Comparative 3D Structure on P07902
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Orthologous Genes in Other Species
Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
Gene Ontology (GO) Annotations with Structured Vocabulary
Molecular Function: GO:0005515 protein binding GO:0008108 UDP-glucose:hexose-1-phosphate uridylyltransferase activity GO:0008270 zinc ion binding GO:0016740 transferase activity GO:0016779 nucleotidyltransferase activity GO:0046872 metal ion binding
Biological Process: GO:0005975 carbohydrate metabolic process GO:0006011 UDP-glucose metabolic process GO:0006012 galactose metabolic process GO:0006258 UDP-glucose catabolic process GO:0019388 galactose catabolic process GO:0033499 galactose catabolic process via UDP-galactose