Q821P5 (RISB_CHLCV) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
6,7-dimethyl-8-ribityllumazine synthase
Short name=DMRL synthase
Short name=Lumazine synthase
EC=2.5.1.9

Alternative name(s):
Riboflavin synthase beta chain

Gene names

Name:	ribH
Ordered Locus Names:	CCA_00894

Organism

Chlamydophila caviae [Complete proteome] [HAMAP]

Taxonomic identifier

83557 [NCBI]

Taxonomic lineage

Bacteria › Chlamydiae › Chlamydiales › Chlamydiaceae › Chlamydia/Chlamydophila group › Chlamydophila

Protein attributes

Sequence length	154 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Riboflavin synthase is a bifunctional enzyme complex catalyzing the formation of riboflavin from 5-amino-6-(1'-D)-ribityl-amino-2,4(1H,3H)-pyrimidinedione and L-3,4-dihydrohy-2-butanone-4-phosphate via 6,7-dimethyl-8-lumazine. The beta subunit catalyzes the condensation of 5-amino-6-(1'-D)-ribityl-amino-2,4(1H,3H)-pyrimidinedione with L-3,4-dihydrohy-2-butanone-4-phosphate yielding 6,7-dimethyl-8-lumazine By similarity. HAMAP MF_00178
Catalytic activity	2 6,7-dimethyl-8-(1-D-ribityl)lumazine = riboflavin + 4-(1-D-ribitylamino)-5-amino-2,6-dihydroxypyrimidine. HAMAP MF_00178
Pathway	Cofactor biosynthesis; riboflavin biosynthesis; riboflavin from 2-hydroxy-3-oxobutyl phosphate and 5-amino-6-(D-ribitylamino)uracil: step 2/2. HAMAP MF_00178
Sequence similarities	Belongs to the DMRL synthase family.

Ontologies

Keywords
Biological process	Riboflavin biosynthesis
Molecular function	Transferase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	riboflavin biosynthetic process Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	riboflavin synthase complex Inferred from electronic annotation. Source: InterPro
Molecular function	riboflavin synthase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 154	154	6,7-dimethyl-8-ribityllumazine synthase HAMAP MF_00178		PRO_0000134737

Sequences

	Sequence		Length	Mass (Da)
	Q821P5 [UniParc]. Last modified June 1, 2003. Version 1. Checksum: E33BE8EA770059F3	FASTA	154	16,310
	10 20 30 40 50 60 MKTFKGVASA KDMRVAIVGA CFNGPIADAL VSGAQQTFLD LGGAEDMLTV VRVPGSFEIP 70 80 90 100 110 120 CTLKKLLTSG VKYDAIVACG VLIKGETTHY DHIADQVSAR ISELSLEFNL PITFSVITAP 130 140 150 CIDSAWQRAG IKGSNLGISG MKTALEMADL FKKL

References

[1]

"Genome sequence of Chlamydophila caviae (Chlamydia psittaci GPIC): examining the role of niche-specific genes in the evolution of the Chlamydiaceae." Read T.D., Myers G.S.A., Brunham R.C., Nelson W.C., Paulsen I.T., Heidelberg J.F., Holtzapple E.K., Khouri H.M., Federova N.B., Carty H.A., Umayam L.A., Haft D.H., Peterson J.D., Beanan M.J., White O., Salzberg S.L., Hsia R.-C., McClarty G. , Rank R.G., Bavoil P.M., Fraser C.M. Nucleic Acids Res. 31:2134-2147(2003) [PubMed: 12682364] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: GPIC.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AE015925 Genomic DNA. Translation: AAP05634.1.
RefSeq	NP_829756.1. NC_003361.3.
3D structure databases
ProteinModelPortal	Q821P5.
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	1218582.
GenomeReviews	Gene locus CCA_00894 in contig AE015925_GR.
KEGG	cca:CCA00894.
PATRIC	20270929. VBIChlCav107360_0938.
TIGR	CCA_00894.
Phylogenomic databases
HOGENOM	HBG311126.
OMA	DYVCNEA.
PhylomeDB	Q821P5.
ProtClustDB	PRK00061.
Enzyme and pathway databases
BioCyc	CCAV227941:CCA_00894-MONOMER.
Family and domain databases
HAMAP	MF_00178. Lumazine_synth. [Tree]
InterPro	IPR002180. DMRL_synthase. [Graphical view]
Gene3D	G3DSA:3.40.50.960. DMRL_synthase. 1 hit.
KO	K00794.
PANTHER	PTHR21058. DMRL_synthase. 1 hit.
Pfam	PF00885. DMRL_synthase. 1 hit. [Graphical view]
SUPFAM	SSF52121. DMRL_synthase. 1 hit.
TIGRFAMs	TIGR00114. Lumazine-synth. 1 hit.
ProtoNet	Search...

Entry information

Entry name

RISB_CHLCV

Accession

Primary (citable) accession number: Q821P5

Entry history

Integrated into UniProtKB/Swiss-Prot:	July 25, 2003
Last sequence update:	June 1, 2003
Last modified:	January 25, 2012
This is version 50 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program