Reviewed, UniProtKB/Swiss-Prot Q9CFW8 (PYRDB_LACLA)

Names and origin

Protein names

Recommended name:
    Dihydroorotate dehydrogenase B, catalytic subunit
    EC=1.3.3.1
Alternative name(s):
    Dihydroorotate oxidase B
    DHOdehase B
      Short name=DHODase B
      Short name=DHOD B

Gene names

Name:	pyrDB
Synonyms:	pydB
Ordered Locus Names:	LL1346
ORF Names:	L182555

Organism

Lactococcus lactis subsp. lactis (Streptococcus lactis) [Complete proteome] [HAMAP]

Taxonomic identifier

1360 [NCBI]

Taxonomic lineage

Bacteria › Firmicutes › Lactobacillales › Streptococcaceae › Lactococcus

Protein attributes

Sequence length	311 AA.
Sequence status	Complete.
Protein existence	Inferred from homology.

General annotation (Comments)

Catalytic activity	(S)-dihydroorotate + O2 = orotate + H2O2. HAMAP MF_00224
Cofactor	Binds 1 FMN per subunit By similarity. HAMAP MF_00224
Pathway	Pyrimidine metabolism; UMP biosynthesis via de novo pathway; orotate from (S)-dihydroorotate (O2 route): step 1/1. HAMAP MF_00224
Subunit structure	Heterotetramer of 2 pyrK and 2 pyrD subunits By similarity. HAMAP MF_00224
Subcellular location	Cytoplasm By similarity HAMAP MF_00224.
Sequence similarities	Belongs to the dihydroorotate dehydrogenase family. Type 1 subfamily.

Ontologies

Keywords
Biological process	Pyrimidine biosynthesis
Cellular component	Cytoplasm
Ligand	FMN Flavoprotein
Molecular function	Oxidoreductase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	'de novo' pyrimidine base biosynthetic process Inferred from electronic annotation. Source: InterPro UMP biosynthetic process Inferred from electronic annotation. Source: InterPro oxidation reduction Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	cytoplasm Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	dihydroorotate oxidase activity Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 311	311	Dihydroorotate dehydrogenase B, catalytic subunit HAMAP MF_00224		PRO_0000148395
Sites
	Active site	135	1	Nucleophile By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q9CFW8-1 [UniParc]. Last modified June 1, 2001. Version 1. Checksum: 6FF419606B2E733C	FASTA	311	32,916
	10 20 30 40 50 60 MTENNRLSVK LPGLDLKNPI IPASGCFGFG EEYAKYYDLN KLGSIMVKAT TLHPRFGNPT 70 80 90 100 110 120 PRVAETASGM LNAIGLQNPG LEVIMAEKLP WLNENFPDLP IIANVAGSEE DDYVAVCAKI 130 140 150 160 170 180 GDAPNVKVIE LNISCPNVKH GGQAFGTDPD VAAALVKACK AVSKVPLYVK LSPNVTDIVP 190 200 210 220 230 240 IAKAVEAAGA DGLTMINTLM GVRFDLKTRK PVLANITGGL SGPAIKPVAL KLIHQVAQVV 250 260 270 280 290 300 DIPIIGMGGV ESAQDVLEMY MAGASAVAVG TANFADPFVC PKIIEKLPEV MDQYGIDSLE 310 NLIQEVKNSK K

References

[1]

"The complete genome sequence of the lactic acid bacterium Lactococcus lactis ssp. lactis IL1403." Bolotin A., Wincker P., Mauger S., Jaillon O., Malarme K., Weissenbach J., Ehrlich S.D., Sorokin A. Genome Res. 11:731-753(2001) [PubMed: 11337471] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: IL1403.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AE005176 Genomic DNA. Translation: AAK05444.1.
PIR	B86793.
RefSeq	NP_267502.1.
3D structure databases
SMR	Q9CFW8. Positions 1-311.
ModBase	Search...
Genome annotation databases
GeneID	1114996.
GenomeReviews	Gene locus LL1346 in contig AE005176_GR.
KEGG	lla:L182555.
NMPDR	fig|272623.1.peg.1381.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	HBG472415.
OMA	MPASGCF.
Enzyme and pathway databases
BioCyc	LLAC272623:L182555-MONOMER. MetaCyc:MONOMER-14471.
BRENDA	1.3.3.1. 278870.
Family and domain databases
HAMAP	MF_00224_B. DHO_dh_type1_B. [Tree]
InterPro	IPR013785. Aldolase_TIM. IPR012135. Dihydroorotate_DH_1_2. IPR005720. Dihydroorotate_DH_1_core. IPR001295. Dihydroorotate_DH_CS. [Graphical view]
Gene3D	G3DSA:3.20.20.70. Aldolase_TIM. 1 hit.
Pfam	PF01180. DHO_dh. 1 hit. [Graphical view]
PIRSF	PIRSF000164. DHO_oxidase. 1 hit.
TIGRFAMs	TIGR01037. pyrD_sub1_fam. 1 hit.
PROSITE	PS00911. DHODEHASE_1. 1 hit. PS00912. DHODEHASE_2. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

PYRDB_LACLA

Accession

Primary (citable) accession number: Q9CFW8

Entry history

Integrated into UniProtKB/Swiss-Prot:	September 26, 2001
Last sequence update:	June 1, 2001
Last modified:	February 9, 2010
This is version 70 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)