A0LZH6 (RISB_GRAFK) 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:	GFO_0795

Organism

Gramella forsetii (strain KT0803) [Complete proteome] [HAMAP]

Taxonomic identifier

411154 [NCBI]

Taxonomic lineage

Bacteria › Bacteroidetes › Flavobacteriia › Flavobacteriales › Flavobacteriaceae › Gramella

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_1000040426

Sequences

	Sequence		Length	Mass (Da)
	A0LZH6 [UniParc]. Last modified December 12, 2006. Version 1. Checksum: 703B910E7AC2CB8D	FASTA	168	18,683
	10 20 30 40 50 60 MATEGNNLSQ YDKNTIPNAK DFRFGIVVSE WNEEITEGLF QGAFDAWIEN GVQKENIVRW 70 80 90 100 110 120 NVPGSFELIY GCKKMQQSFE MLDAIVAVGN VIQGETKHFD FVCDGVTQGI KDLNVQTDIP 130 140 150 160 VIFCVLTDNN IEQSRARSGG KHGNKGTEAA IAAIKMAQLR KDAKFYKG

References

[1]

"Whole genome analysis of the marine Bacteroidetes'Gramella forsetii' reveals adaptations to degradation of polymeric organic matter." Bauer M., Kube M., Teeling H., Richter M., Lombardot T., Allers E., Wuerdemann C.A., Quast C., Kuhl H., Knaust F., Woebken D., Bischof K., Mussmann M., Choudhuri J.V., Meyer F., Reinhardt R., Amann R.I., Gloeckner F.O. Environ. Microbiol. 8:2201-2213(2006) [PubMed: 17107561] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: KT0803.

Cross-references

Sequence databases
EMBL GenBank DDBJ	CU207366 Genomic DNA. Translation: CAL65771.1.
RefSeq	YP_860838.1. NC_008571.1.
3D structure databases
ProteinModelPortal	A0LZH6.
ModBase	Search...
Protein-protein interaction databases
STRING	A0LZH6.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	4651974.
GenomeReviews	Gene locus GFO_0795 in contig CU207366_GR.
KEGG	gfo:GFO_0795.
NMPDR	fig|411154.5.peg.759.
PATRIC	22070441. VBIGraFor5527_0769.
Organism-specific databases
CMR	Search...
Phylogenomic databases
eggNOG	COG0054.
HOGENOM	HBG311126.
OMA	AGECSSG.
PhylomeDB	A0LZH6.
ProtClustDB	PRK00061.
Enzyme and pathway databases
BioCyc	GFOR411154:GFO_0795-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_GRAFK

Accession

Primary (citable) accession number: A0LZH6

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 15, 2008
Last sequence update:	December 12, 2006
Last modified:	December 14, 2011
This is version 37 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program