ID   GALE_ERWAM              Reviewed;         337 AA.
AC   P35673;
DT   01-JUN-1994, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-1994, sequence version 1.
DT   03-AUG-2022, entry version 93.
DE   RecName: Full=UDP-glucose 4-epimerase;
DE            EC=5.1.3.2;
DE   AltName: Full=Galactowaldenase;
DE   AltName: Full=UDP-galactose 4-epimerase;
GN   Name=galE;
OS   Erwinia amylovora (Fire blight bacteria).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Erwinia.
OX   NCBI_TaxID=552;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=EA7/74;
RX   PubMed=7507102; DOI=10.1128/jb.176.2.450-459.1994;
RA   Metzger M., Bellemann P., Bugert P., Geider K.;
RT   "Genetics of galactose metabolism of Erwinia amylovora and its influence on
RT   polysaccharide synthesis and virulence of the fire blight pathogen.";
RL   J. Bacteriol. 176:450-459(1994).
CC   -!- FUNCTION: Involved in the metabolism of galactose. Catalyzes the
CC       conversion of UDP-galactose (UDP-Gal) to UDP-glucose (UDP-Glc) through
CC       a mechanism involving the transient reduction of NAD (By similarity).
CC       {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=UDP-alpha-D-glucose = UDP-alpha-D-galactose;
CC         Xref=Rhea:RHEA:22168, ChEBI:CHEBI:58885, ChEBI:CHEBI:66914;
CC         EC=5.1.3.2;
CC   -!- COFACTOR:
CC       Name=NAD(+); Xref=ChEBI:CHEBI:57540; Evidence={ECO:0000250};
CC   -!- PATHWAY: Carbohydrate metabolism; galactose metabolism.
CC   -!- SUBUNIT: Homodimer. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the NAD(P)-dependent epimerase/dehydratase
CC       family. {ECO:0000305}.
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DR   EMBL; X76172; CAA53767.1; -; Genomic_DNA.
DR   PIR; A36951; A36951.
DR   AlphaFoldDB; P35673; -.
DR   SMR; P35673; -.
DR   UniPathway; UPA00214; -.
DR   GO; GO:0003978; F:UDP-glucose 4-epimerase activity; IEA:UniProtKB-EC.
DR   GO; GO:0006012; P:galactose metabolic process; IEA:UniProtKB-UniPathway.
DR   CDD; cd05247; UDP_G4E_1_SDR_e; 1.
DR   InterPro; IPR016040; NAD(P)-bd_dom.
DR   InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR   InterPro; IPR005886; UDP_G4E.
DR   Pfam; PF16363; GDP_Man_Dehyd; 1.
DR   SUPFAM; SSF51735; SSF51735; 1.
DR   TIGRFAMs; TIGR01179; galE; 1.
PE   3: Inferred from homology;
KW   Carbohydrate metabolism; Galactose metabolism; Isomerase; NAD.
FT   CHAIN           1..337
FT                   /note="UDP-glucose 4-epimerase"
FT                   /id="PRO_0000183204"
FT   ACT_SITE        149
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000250"
FT   BINDING         11..12
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000250"
FT   BINDING         31..36
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000250"
FT   BINDING         58..59
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000250"
FT   BINDING         80..84
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000250"
FT   BINDING         99
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000250"
FT   BINDING         124
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000250"
FT   BINDING         124
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         149
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000250"
FT   BINDING         149
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         153
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000250"
FT   BINDING         178
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000250"
FT   BINDING         179
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         199..200
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         216..218
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         231
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         292..295
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   337 AA;  36684 MW;  ACB9DD5524417F6D CRC64;
     MSILVTGGAG YIGSHTVLSL LQRGDDVVIL DNLSNASRES INRVEKLTGK TATFFEGDLL
     DRSCLRSVFS AHRISAVIHF AGLKAVGAST RKPLEYYQNN VTGTLVLLEE MRSAGVNQFI
     FSSSATVYGA DAPVPYVETT PIGGTTSPYG TSKLMVEQIL RDYAKANPEF KTIALRYFNP
     VGAHESGQMG EDPNGIPNNL LPYIAQVAIG RLEKLGIFGD DYPTEDGTGV RDYIHVMDLA
     EGHLKALDHL SAIEGYKAYN LGAGKGYSVL EMVKAFEKAS GGTVAYQISP RRDGDLAAFW
     ADATLADKEL NWRVSRGIDE MMRDTWNWQS QNPQGDS