Annotations: 1BXK

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1bxka_	Alpha and beta proteins (a/b)	NAD(P)-binding Rossmann-fold domains	NAD(P)-binding Rossmann-fold domains	Tyrosine-dependent oxidoreductases	dTDP-glucose 4,6-dehydratase (RmlB)	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
B	d1bxkb_	Alpha and beta proteins (a/b)	NAD(P)-binding Rossmann-fold domains	NAD(P)-binding Rossmann-fold domains	Tyrosine-dependent oxidoreductases	dTDP-glucose 4,6-dehydratase (RmlB)	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	SDR-like	8058499	3000038	SCOP2B (2022-06-29)
B	SCOP2 Family	UDP-glucose 4-epimerase GalE-lke	8058498	4000088	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	SDR-like	8058499	3000038	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	GDP_Man_Dehyd	e1bxkA1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: GDP_Man_Dehyd	ECOD (1.6)
B	GDP_Man_Dehyd	e1bxkB1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: GDP_Man_Dehyd	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
A	3.90.25.10	Alpha Beta	Alpha-Beta Complex	UDP-galactose 4-epimerase	domain 1	CATH (4.3.0)
B	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
B	3.90.25.10	Alpha Beta	Alpha-Beta Complex	UDP-galactose 4-epimerase	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01370	NAD dependent epimerase/dehydratase family (Epimerase)	NAD dependent epimerase/dehydratase family	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	PROTEIN (DTDP-GLUCOSE 4,6-DEHYDRATASE)	hydro-lyase activity lyase activity dTDP-glucose 4,6-dehydratase activity catalytic activity carbon-oxygen lyase activity	nucleoside phosphate metabolic process nucleotide-sugar metabolic process carbohydrate derivative metabolic process primary metabolic process nucleobase-containing compound metabolic process organophosphate metabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process metabolic process cellular process small molecule metabolic process phosphorus metabolic process lipopolysaccharide biosynthetic process carbohydrate derivative biosynthetic process nucleoside phosphate metabolic process nucleotide-sugar metabolic process carbohydrate derivative metabolic process primary metabolic process nucleobase-containing compound metabolic process organophosphate metabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process metabolic process cellular process small molecule metabolic process phosphorus metabolic process lipopolysaccharide biosynthetic process carbohydrate derivative biosynthetic process carbohydrate metabolic process polysaccharide biosynthetic process carbohydrate biosynthetic process liposaccharide metabolic process lipid biosynthetic process macromolecule biosynthetic process lipopolysaccharide metabolic process polysaccharide metabolic process biosynthetic process macromolecule metabolic process lipid metabolic process enterobacterial common antigen biosynthetic process enterobacterial common antigen metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
A, B	IPR005888	dTDP-glucose 4,6-dehydratase	Family
A, B	IPR016040	NAD(P)-binding domain	Domain

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	dTDP-glucose 4,6-dehydratase M-CSA #228	The conversion of dTDP-glucose into dTDP-4-keto-6-deoxyglucose by Escherichia coli dTDP-glucose 4,6-dehydratase) takes place in the active site in three steps: dehydrogenation to dTDP-4-ketoglucose, dehydration to dTDP-4-ketoglucose-5,6-ene, and rereduction of C6 to the methyl group. The 4,6-dehydratase makes use of tightly bound NAD+ as the coenzyme for transiently oxidizing the substrate, activating it for the dehydration step.	Defined by 5 residues: THR:A-134ASP:A-135GLU:A-136TYR:A-160LYS:A-164 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 4.2.1.46 (PDB Primary Data) Search M-CSA Motif + EC 4.2.1.46

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.