Annotations: 1DOR

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1dora_	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	FMN-linked oxidoreductases	FMN-linked oxidoreductases	Dihydroorotate dehydrogenase	(Lactococcus lactis ) [TaxId: 1358 ],	SCOPe (2.08)
B	d1dorb_	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	FMN-linked oxidoreductases	FMN-linked oxidoreductases	Dihydroorotate dehydrogenase	(Lactococcus lactis ) [TaxId: 1358 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	FMN-linked oxidoreductases	8058084	3000014	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	FMN-linked oxidoreductases	8058084	3000014	SCOP2B (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	DHO_dh	e1dorA1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: DHO_dh	ECOD (1.6)
B	DHO_dh	e1dorB1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: DHO_dh	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.20.70	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Aldolase class I	CATH (4.3.0)
A	2.30.26.10	Mainly Beta	Roll	Dihydroorotate Dehydrogenase A	chain A, domain 2	CATH (4.3.0)
B	3.20.20.70	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Aldolase class I	CATH (4.3.0)
B	2.30.26.10	Mainly Beta	Roll	Dihydroorotate Dehydrogenase A	chain A, domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01180	Dihydroorotate dehydrogenase (DHO_dh)	Dihydroorotate dehydrogenase	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	DIHYDROOROTATE DEHYDROGENASE A	dihydroorotate dehydrogenase (fumarate) activity oxidoreductase activity dihydroorotate dehydrogenase activity oxidoreductase activity, acting on the CH-CH group of donors catalytic activity	cellular biosynthetic process organonitrogen compound biosynthetic process cellular nitrogen compound biosynthetic process nucleobase-containing compound metabolic process organic substance metabolic process heterocycle metabolic process nucleobase-containing small molecule metabolic process nucleobase metabolic process organic substance biosynthetic process nitrogen compound metabolic process small molecule metabolic process pyrimidine-containing compound biosynthetic process organonitrogen compound metabolic process pyrimidine-containing compound metabolic process cellular biosynthetic process organonitrogen compound biosynthetic process cellular nitrogen compound biosynthetic process nucleobase-containing compound metabolic process organic substance metabolic process heterocycle metabolic process nucleobase-containing small molecule metabolic process nucleobase metabolic process organic substance biosynthetic process nitrogen compound metabolic process small molecule metabolic process pyrimidine-containing compound biosynthetic process organonitrogen compound metabolic process pyrimidine-containing compound metabolic process nucleobase biosynthetic process cellular metabolic process pyrimidine nucleobase biosynthetic process cellular nitrogen compound metabolic process primary metabolic process heterocycle biosynthetic process pyrimidine nucleobase metabolic process organic cyclic compound metabolic process biosynthetic process organic cyclic compound biosynthetic process 'de novo' pyrimidine nucleobase biosynthetic process metabolic process cellular process cellular aromatic compound metabolic process nucleotide biosynthetic process carbohydrate derivative metabolic process pyrimidine nucleotide metabolic process 'de novo' UMP biosynthetic process ribonucleotide biosynthetic process phosphate-containing compound metabolic process UMP metabolic process phosphorus metabolic process ribose phosphate biosynthetic process nucleoside phosphate metabolic process pyrimidine ribonucleoside monophosphate metabolic process nucleotide metabolic process pyrimidine ribonucleoside monophosphate biosynthetic process aromatic compound biosynthetic process organophosphate biosynthetic process nucleoside phosphate biosynthetic process pyrimidine nucleoside monophosphate biosynthetic process ribose phosphate metabolic process UMP biosynthetic process ribonucleotide metabolic process ribonucleoside monophosphate metabolic process nucleoside monophosphate metabolic process pyrimidine ribonucleotide metabolic process carbohydrate derivative biosynthetic process pyrimidine nucleoside monophosphate metabolic process nucleobase-containing compound biosynthetic process nucleoside monophosphate biosynthetic process organophosphate metabolic process ribonucleoside monophosphate biosynthetic process pyrimidine nucleotide biosynthetic process pyrimidine ribonucleotide biosynthetic process	intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR012135	Dihydroorotate dehydrogenase, class 1/ 2	Family
A, B	IPR024920	Dihydroorotate dehydrogenase, class 1	Family
A, B	IPR023359	Dihydroorotate dehydrogenase A, chain A, domain 2	Homologous Superfamily
A, B	IPR013785	Aldolase-type TIM barrel	Homologous Superfamily
A, B	IPR005720	Dihydroorotate dehydrogenase, catalytic	Domain
A, B	IPR001295	Dihydroorotate dehydrogenase, conserved site	Conserved Site
A, B	IPR033886	Dihydroorotate dehydrogenase, class 1A	Family

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.