Annotations: 2B4G

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2b4ga1	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	FMN-linked oxidoreductases	FMN-linked oxidoreductases	Dihydroorotate dehydrogenase	(Trypanosoma brucei ) [TaxId: 5691 ],	SCOPe (2.08)
B	d2b4gb_	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	FMN-linked oxidoreductases	automated matches	automated matches	(Trypanosoma brucei ) [TaxId: 5691 ],	SCOPe (2.08)
C	d2b4gc_	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	FMN-linked oxidoreductases	automated matches	automated matches	(Trypanosoma brucei ) [TaxId: 5691 ],	SCOPe (2.08)
D	d2b4gd_	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	FMN-linked oxidoreductases	automated matches	automated matches	(Trypanosoma brucei ) [TaxId: 5691 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	FMN-linked oxidoreductases	8058079	4000080	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	FMN-linked oxidoreductases	8058080	3000014	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	FMN-linked oxidoreductases	8058080	3000014	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	FMN-linked oxidoreductases	8058080	3000014	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	FMN-linked oxidoreductases	8058080	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	e2b4gA1	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	e2b4gB1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: DHO_dh	ECOD (1.6)
C	DHO_dh	e2b4gC1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: DHO_dh	ECOD (1.6)
D	DHO_dh	e2b4gD1	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)
C	3.20.20.70	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Aldolase class I	CATH (4.3.0)
C	2.30.26.10	Mainly Beta	Roll	Dihydroorotate Dehydrogenase A	chain A, domain 2	CATH (4.3.0)
D	3.20.20.70	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Aldolase class I	CATH (4.3.0)
D	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, C, D	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, C, D	dihydroorotate dehydrogenase	dihydroorotate dehydrogenase (fumarate) activity oxidoreductase activity dihydroorotate dehydrogenase activity oxidoreductase activity, acting on the CH-CH group of donors catalytic activity	oxoacid metabolic process cellular metabolic process dicarboxylic acid metabolic process carboxylic acid metabolic process small molecule metabolic process metabolic process cellular process fumarate metabolic process organic acid metabolic process organonitrogen compound metabolic process pyrimidine-containing compound metabolic process nucleobase biosynthetic process pyrimidine nucleobase biosynthetic process organonitrogen compound biosynthetic process oxoacid metabolic process cellular metabolic process dicarboxylic acid metabolic process carboxylic acid metabolic process small molecule metabolic process metabolic process cellular process fumarate metabolic process organic acid metabolic process organonitrogen compound metabolic process pyrimidine-containing compound metabolic process nucleobase biosynthetic process pyrimidine nucleobase biosynthetic process organonitrogen compound biosynthetic process primary metabolic process nucleobase-containing compound metabolic process pyrimidine nucleobase metabolic process biosynthetic process nucleobase-containing small molecule metabolic process nucleobase metabolic process 'de novo' pyrimidine nucleobase biosynthetic process pyrimidine-containing compound biosynthetic process ribose phosphate metabolic process nucleotide biosynthetic process carbohydrate derivative metabolic process pyrimidine nucleotide metabolic process 'de novo' UMP biosynthetic process ribonucleotide biosynthetic process UMP biosynthetic process ribonucleotide metabolic process ribonucleoside monophosphate metabolic process phosphate-containing compound metabolic process UMP metabolic process phosphorus metabolic process nucleoside monophosphate metabolic process ribose phosphate biosynthetic process pyrimidine ribonucleotide metabolic process nucleoside phosphate metabolic process carbohydrate derivative biosynthetic process pyrimidine nucleoside monophosphate metabolic process pyrimidine ribonucleoside monophosphate metabolic process nucleobase-containing compound biosynthetic process nucleotide metabolic process nucleoside monophosphate biosynthetic process pyrimidine ribonucleoside monophosphate biosynthetic process organophosphate metabolic process organophosphate biosynthetic process nucleoside phosphate biosynthetic process pyrimidine nucleoside monophosphate biosynthetic process ribonucleoside monophosphate biosynthetic process pyrimidine nucleotide biosynthetic process pyrimidine ribonucleotide biosynthetic process	membrane-bounded organelle intracellular anatomical structure ciliary plasm cilium cellular anatomical entity cytoplasmic region plasma membrane bounded cell projection cytoplasm plasma membrane bounded cell projection cell projection organelle cytoplasm intracellular organelle peroxisome microbody membrane-bounded organelle intracellular anatomical structure ciliary plasm cilium cellular anatomical entity cytoplasmic region plasma membrane bounded cell projection cytoplasm plasma membrane bounded cell projection cell projection organelle cytoplasm intracellular organelle peroxisome microbody glycosome intracellular membrane-bounded organelle nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR013785	Aldolase-type TIM barrel	Homologous Superfamily
A, B, C, D	IPR005720	Dihydroorotate dehydrogenase, catalytic	Domain
A, B, C, D	IPR050074	Dihydroorotate dehydrogenase	Family
A, B, C, D	IPR033886	Dihydroorotate dehydrogenase, class 1A	Family
A, B, C, D	IPR012135	Dihydroorotate dehydrogenase, class 1/ 2	Family

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 R01GM133198.