B0RC64 (RISB_CLAMS) 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:	CMS2879

Organism

Clavibacter michiganensis subsp. sepedonicus (strain ATCC 33113 / JCM 9667) [Complete proteome] [HAMAP]

Taxonomic identifier

31964 [NCBI]

Taxonomic lineage

Bacteria › Actinobacteria › Actinobacteridae › Actinomycetales › Micrococcineae › Microbacteriaceae › Clavibacter

Protein attributes

Sequence length	160 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 – 160	160	6,7-dimethyl-8-ribityllumazine synthase HAMAP MF_00178		PRO_1000077228

Sequences

	Sequence		Length	Mass (Da)
	B0RC64 [UniParc]. Last modified April 8, 2008. Version 1. Checksum: EEB0C0D9ED82FB28	FASTA	160	15,992
	10 20 30 40 50 60 MSGHGAPEID PTALDGTGLA VTVVAGRWHD EISAGLLAGA QRVLDAAGVT TTVIRVPGSF 70 80 90 100 110 120 ELPVVARAAL DAGADAVVAL GVIIRGGTPH FEYVSDAATS GLTQASLLTG KPVGFGLLTL 130 140 150 160 DDEQQGLDRA GLPDSKEDKG AEAAEAAVTT ALLLKAIRGA

References

[1]

"Genome of the actinomycete plant pathogen Clavibacter michiganensis subsp. sepedonicus suggests recent niche adaptation." Bentley S.D., Corton C., Brown S.E., Barron A., Clark L., Doggett J., Harris B., Ormond D., Quail M.A., May G., Francis D., Knudson D., Parkhill J., Ishimaru C.A. J. Bacteriol. 190:2150-2160(2008) [PubMed: 18192393] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC 33113 / JCM 9667.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AM849034 Genomic DNA. Translation: CAQ02950.1.
RefSeq	YP_001711512.1. NC_010407.1.
3D structure databases
ProteinModelPortal	B0RC64.
SMR	B0RC64. Positions 15-159.
ModBase	Search...
Protein-protein interaction databases
STRING	B0RC64.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	6158931.
GenomeReviews	Gene locus CMS2879 in contig AM849034_GR.
KEGG	cms:CMS_2879.
PATRIC	21462799. VBIClaMic4666_2934.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	HBG311126.
OMA	SSRALMD.
ProtClustDB	PRK00061.
Enzyme and pathway databases
BioCyc	CMIC31964:CMS2879-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_CLAMS

Accession

Primary (citable) accession number: B0RC64

Entry history

Integrated into UniProtKB/Swiss-Prot:	May 20, 2008
Last sequence update:	April 8, 2008
Last modified:	January 25, 2012
This is version 26 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program