2DOR

DIHYDROOROTATE DEHYDROGENASE A FROM LACTOCOCCUS LACTIS COMPLEXED WITH OROTATE

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Structure Motif: Primary M-CSA Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2dora_	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	d2dorb_	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	e2dorA1	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	e2dorB1	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	pyrimidine-containing compound metabolic process nucleobase biosynthetic process pyrimidine nucleobase 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 small molecule metabolic process metabolic process cellular process pyrimidine-containing compound biosynthetic process pyrimidine-containing compound metabolic process nucleobase biosynthetic process pyrimidine nucleobase 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 small molecule metabolic process metabolic process cellular 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	cellular anatomical structure intracellular anatomical structure cytoplasm

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	IPR050074	Dihydroorotate dehydrogenase	Family
A, B	IPR033886	Dihydroorotate dehydrogenase, class 1A	Family

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

Chains	Enzyme Name	Description	Catalytic Residues
A	dihydroorotate dehydrogenase (fumarate) M-CSA #892	Dihydroorotate dehydrogenase (DHOD) catalyzes the oxidation of (S)-dihydroorotate to orotate. This is the fourth step and the only redox reaction in the de novo biosynthesis of UMP, the precursor of all pyrimidine nucleotides. DHOD requires FMN as co-factor. This enzyme represents family 1 (specifically 1A) which are mostly found in bacteria and utilise fumarate as the acceptor	Defined by 2 residues: LYS:A-43CYS:A-130 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 1.3.3.1 (PDB Primary Data) Search M-CSA Motif + EC 1.3.3.1 EC: 1.3.98.1 (UniProt) Search M-CSA Motif + EC 1.3.98.1

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.