B8H6T9 (RISB_ARTCA) 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:	Achl_1673

Organism

Arthrobacter chlorophenolicus (strain A6 / ATCC 700700 / DSM 12829 / JCM 12360) [Complete proteome] [HAMAP]

Taxonomic identifier

452863 [NCBI]

Taxonomic lineage

Bacteria › Actinobacteria › Actinobacteridae › Actinomycetales › Micrococcineae › Micrococcaceae › Arthrobacter

Protein attributes

Sequence length	161 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 – 161	161	6,7-dimethyl-8-ribityllumazine synthase HAMAP MF_00178		PRO_1000195454

Sequences

	Sequence		Length	Mass (Da)
	B8H6T9 [UniParc]. Last modified March 3, 2009. Version 1. Checksum: AC0F98EB8C78792C	FASTA	161	16,596
	10 20 30 40 50 60 MSGHGAPDID LTTLNPAETS QLRLAIVAAS WHTQIMDGLL DGALRAAKDA GINEPTVIRV 70 80 90 100 110 120 PGSFELPVAA ARLAPHFDAV VALGVVIRGG TPHFEYVCQA ATSGLTDVSV RTGVPVGFGV 130 140 150 160 LTCDTEQQGL DRAGLPGSKE DKGHEAVTAA LATAVVLKQY S

References

[1]

"Complete sequence of chromosome of Arthrobacter chlorophenolicus A6." US DOE Joint Genome Institute Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Tice H., Bruce D., Goodwin L., Pitluck S., Goltsman E., Clum A., Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Jansson J., Richardson P. Submitted (JAN-2009) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: A6 / ATCC 700700 / DSM 12829 / JCM 12360.

Cross-references

Sequence databases
EMBL GenBank DDBJ	CP001341 Genomic DNA. Translation: ACL39660.1.
RefSeq	YP_002487749.1. NC_011886.1.
3D structure databases
ModBase	Search...
Protein-protein interaction databases
STRING	B8H6T9.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	7293132.
GenomeReviews	Gene locus Achl_1673 in contig CP001341_GR.
KEGG	ach:Achl_1673.
PATRIC	20989927. VBIArtChl38304_2348.
Organism-specific databases
CMR	Search...
Phylogenomic databases
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_ARTCA

Accession

Primary (citable) accession number: B8H6T9

Entry history

Integrated into UniProtKB/Swiss-Prot:	July 28, 2009
Last sequence update:	March 3, 2009
Last modified:	January 25, 2012
This is version 19 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program