galE
168
UDP glucose 4-epimerase
Locus
BSU_38860
Molecular weight
36.85 kDa
Isoelectric point
4.78
Function
galactose utilization
Product
UDP glucose 4-epimerase
Essential
no
E.C.
5.1.3.2
Synonyms
galE
Outlinks
Genomic Context
Categories containing this gene/protein
List of homologs in different organisms, belongs to COG1087 (Galperin et al., 2021)
This gene is a member of the following regulons
Gene
Coordinates
3,989,948 3,990,967
Phenotypes of a mutant
smooth colonies on MsGG medium, no biofilm formation in the absence of externally provided galactose PubMed
the mutant is sensitive to exogenous galactose due to the accumulation of toxic UDP-galactose, this sensitivity can be suppressed by the inactivation of ''galK (no formation of the toxic UDP-galactose) or of sinR (constitutive expression of the epsA-epsB-epsC-epsD-epsE-epsF-epsG-epsH-epsI-epsJ-epsK-epsL-epsM-epsN-epsO'' results in detoxification of UDP-galactose) PubMed
The protein
Catalyzed reaction/ biological activity
UDP-α-D-galactose --> UDP-α-D-glucose (according to UniProt)
Protein family
NAD(P)-dependent epimerase/dehydratase family (according to UniProt)
Structure
1LRL (PDB) (from Escherichia coli Y299C mutant, 57% identity, 71% similarity)\tPubMed
Expression and Regulation
Operons
Genes
Description
Regulation
strongly repressed in response to glucose starvation in M9 medium PubMed
Sigma factors
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Biological materials
Mutant
MGNA-B736 (galE::erm), available at the NBRP B. subtilis, Japan
References
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Time of last update: 2025-04-09 03:50:13
Author of last update: Jstuelk