A6L3K7 (RISB_BACV8) 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:	BVU_2618

Organism

Bacteroides vulgatus (strain ATCC 8482 / DSM 1447 / NCTC 11154) [Complete proteome] [HAMAP]

Taxonomic identifier

435590 [NCBI]

Taxonomic lineage

Bacteria › Bacteroidetes › Bacteroidia › Bacteroidales › Bacteroidaceae › Bacteroides

Protein attributes

Sequence length	168 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 – 168	168	6,7-dimethyl-8-ribityllumazine synthase HAMAP MF_00178		PRO_1000040372

Sequences

	Sequence		Length	Mass (Da)
	A6L3K7 [UniParc]. Last modified July 24, 2007. Version 1. Checksum: 7FECF951CB2B85AC	FASTA	168	18,128
	10 20 30 40 50 60 MATAYHNLSD YDFNSVPNAE NMRFGIVVSE WNNNITGPLL EGAISTLKKH GAKDKNILVQ 70 80 90 100 110 120 TVPGSFELTF GSAQMIKSGK VDAVIAIGCV VRGDTPHFDY VCAGTTQGIA QLNAEGDIPV 130 140 150 160 IYGLITTNTM QQAEDRAGGR LGNKGDECAI TAIKMLDFKE KLQKTQIF

References

[1]

"Evolution of symbiotic bacteria in the distal human intestine." Xu J., Mahowald M.A., Ley R.E., Lozupone C.A., Hamady M., Martens E.C., Henrissat B., Coutinho P.M., Minx P., Latreille P., Cordum H., Van Brunt A., Kim K., Fulton R.S., Fulton L.A., Clifton S.W., Wilson R.K., Knight R.D., Gordon J.I. PLoS Biol. 5:1574-1586(2007) [PubMed: 17579514] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC 8482 / DSM 1447 / NCTC 11154.

Cross-references

Sequence databases
EMBL GenBank DDBJ	CP000139 Genomic DNA. Translation: ABR40271.1.
RefSeq	YP_001299893.1. NC_009614.1.
3D structure databases
ProteinModelPortal	A6L3K7.
ModBase	Search...
Protein-protein interaction databases
STRING	A6L3K7.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	5303581.
GenomeReviews	Gene locus BVU_2618 in contig CP000139_GR.
KEGG	bvu:BVU_2618.
NMPDR	fig|435590.6.peg.2457.
PATRIC	21070190. VBIBacVul85104_2698.
Organism-specific databases
CMR	Search...
Phylogenomic databases
eggNOG	COG0054.
HOGENOM	HBG311126.
OMA	AGECSSG.
ProtClustDB	PRK00061.
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_BACV8

Accession

Primary (citable) accession number: A6L3K7

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 15, 2008
Last sequence update:	July 24, 2007
Last modified:	December 14, 2011
This is version 32 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program