A1W9I3 (RISB_ACISJ) 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:	Ajs_2767

Organism

Acidovorax sp. (strain JS42) [Complete proteome] [HAMAP]

Taxonomic identifier

232721 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Betaproteobacteria › Burkholderiales › Comamonadaceae › Acidovorax

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_1000040358

Sequences

	Sequence		Length	Mass (Da)
	A1W9I3 [UniParc]. Last modified February 6, 2007. Version 1. Checksum: D998119C46D65C33	FASTA	154	16,661
	10 20 30 40 50 60 MFGADKGTAD KLDGKKLHIG IVQARFNENI TNTLAAACRA ELLRLGVQEK HIRHVLVPGA 70 80 90 100 110 120 LEVPVALQAM AERDEYDALI ALGCIIRGET YHFELVANES GAGVTRLALD YQVPIANAII 130 140 150 TTENLEQALA RQTEKGVDAA RVAVEMANLL EELS

References

[1]

"Complete sequence of chromosome 1 of Acidovorax sp. JS42." Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina del Rio T., Dalin E., Tice H., Pitluck S., Chertkov O., Brettin T., Bruce D., Han C., Tapia R., Gilna P., Schmutz J., Larimer F., Land M. , Hauser L., Kyrpides N., Kim E., Stahl D., Richardson P. Submitted (DEC-2006) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: JS42.

Cross-references

Sequence databases
EMBL GenBank DDBJ	CP000539 Genomic DNA. Translation: ABM42908.1.
RefSeq	YP_986984.1. NC_008782.1.
3D structure databases
ProteinModelPortal	A1W9I3.
ModBase	Search...
Protein-protein interaction databases
STRING	A1W9I3.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	4674703.
GenomeReviews	Gene locus Ajs_2767 in contig CP000539_GR.
KEGG	ajs:Ajs_2767.
PATRIC	20690887. VBIAciSp27161_2964.
Organism-specific databases
CMR	Search...
Phylogenomic databases
eggNOG	COG0054.
HOGENOM	HBG311126.
OMA	DYVCNEA.
PhylomeDB	A1W9I3.
ProtClustDB	PRK00061.
Enzyme and pathway databases
BioCyc	ASP232721:AJS_2767-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_ACISJ

Accession

Primary (citable) accession number: A1W9I3

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 15, 2008
Last sequence update:	February 6, 2007
Last modified:	December 14, 2011
This is version 34 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program