P66037 (RISB_NEIMB) 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
Synonyms:	ribE
Ordered Locus Names:	NMB0684

Organism

Neisseria meningitidis serogroup B

Taxonomic identifier

491 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Betaproteobacteria › Neisseriales › Neisseriaceae › Neisseria

Protein attributes

Sequence length	158 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 Reference 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 – 158	158	6,7-dimethyl-8-ribityllumazine synthase HAMAP MF_00178		PRO_0000134775

Sequences

	Sequence		Length	Mass (Da)
	P66037 [UniParc]. Last modified October 11, 2004. Version 1. Checksum: B8A5A74E79185FAC	FASTA	158	17,073
	10 20 30 40 50 60 MNTIAPNLDG KHLRIGIVQA RFTNEIGSEM LKVCCRTLQE LGVADENITV ATVPGALEIP 70 80 90 100 110 120 IALMNFASSE KFDALIAIGV VIRGETYHFE LVSNESGAGV SRVALDYNIP IANAVLTTEN 130 140 150 DAQAIERIEE KASDAAKVAV ECANLVNLLL EEQFEDEE

References

[1]

"Complete genome sequence of Neisseria meningitidis serogroup B strain MC58." Tettelin H., Saunders N.J., Heidelberg J.F., Jeffries A.C., Nelson K.E., Eisen J.A., Ketchum K.A., Hood D.W., Peden J.F., Dodson R.J., Nelson W.C., Gwinn M.L., DeBoy R.T., Peterson J.D., Hickey E.K., Haft D.H., Salzberg S.L., White O. , Fleischmann R.D., Dougherty B.A., Mason T.M., Ciecko A., Parksey D.S., Blair E., Cittone H., Clark E.B., Cotton M.D., Utterback T.R., Khouri H.M., Qin H., Vamathevan J.J., Gill J., Scarlato V., Masignani V., Pizza M., Grandi G., Sun L., Smith H.O., Fraser C.M., Moxon E.R., Rappuoli R., Venter J.C. Science 287:1809-1815(2000) [PubMed: 10710307] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: MC58 / Serogroup B.

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Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AE002098 Genomic DNA. Translation: AAF41102.1.
PIR	B81172.
RefSeq	NP_273726.1. NC_003112.2.
3D structure databases
ProteinModelPortal	P66037.
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
EnsemblBacteria	EBNEIT00000009088; EBNEIP00000008708; EBNEIG00000009088.
GeneID	902796.
GenomeReviews	Gene locus NMB0684 in contig AE002098_GR.
KEGG	nme:NMB0684.
PATRIC	20356681. VBINeiMen85645_0858.
TIGR	NMB0684.
Phylogenomic databases
GeneTree	EBGT00050000020812.
HOGENOM	HBG311126.
OMA	IQGATKH.
ProtClustDB	PRK00061.
Enzyme and pathway databases
BioCyc	NMEN122586:NMB_0684-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_NEIMB

Accession

Primary (citable) accession number: P66037
Secondary accession number(s): Q9JQV6

Entry history

Integrated into UniProtKB/Swiss-Prot:	October 11, 2004
Last sequence update:	October 11, 2004
Last modified:	January 25, 2012
This is version 43 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program