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Protein

Riboflavin synthase

Gene

ribE

Organism
Photobacterium leiognathi
Status
Reviewed-Annotation score: Annotation score: 2 out of 5-Protein inferred from homologyi

Functioni

Catalyzes the dismutation of two molecules of 6,7-dimethyl-8-ribityllumazine, resulting in the formation of riboflavin and 5-amino-6-(D-ribitylamino)uracil.By similarity

Catalytic activityi

2 6,7-dimethyl-8-(1-D-ribityl)lumazine = riboflavin + 4-(1-D-ribitylamino)-5-amino-2,6-dihydroxypyrimidine.

Pathwayi

GO - Molecular functioni

  1. oxidoreductase activity Source: InterPro
  2. riboflavin synthase activity Source: UniProtKB-EC

GO - Biological processi

  1. riboflavin biosynthetic process Source: UniProtKB-UniPathway
Complete GO annotation...

Keywords - Molecular functioni

Transferase

Keywords - Biological processi

Riboflavin biosynthesis

Enzyme and pathway databases

UniPathwayiUPA00275; UER00405.

Names & Taxonomyi

Protein namesi
Recommended name:
Riboflavin synthase (EC:2.5.1.9)
Short name:
RS
Gene namesi
Name:ribE
Synonyms:ribB
OrganismiPhotobacterium leiognathi
Taxonomic identifieri553611 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaVibrionalesVibrionaceaePhotobacterium

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 218218Riboflavin synthasePRO_0000068170Add
BLAST

Proteomic databases

PRIDEiQ01993.

Interactioni

Subunit structurei

Homotrimer.By similarity

Structurei

3D structure databases

ProteinModelPortaliQ01993.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Repeati1 – 9797Lumazine-binding 1Add
BLAST
Repeati98 – 19497Lumazine-binding 2Add
BLAST

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni4 – 63Substrate bindingBy similarity
Regioni48 – 503Substrate bindingBy similarity
Regioni62 – 676Substrate bindingBy similarity

Sequence similaritiesi

Contains 2 lumazine-binding repeats.PROSITE-ProRule annotation

Keywords - Domaini

Repeat

Family and domain databases

Gene3Di2.40.30.20. 2 hits.
InterProiIPR023366. ATPase_asu-like.
IPR001783. Lumazine-bd.
IPR026017. Lumazine-bd_dom.
IPR017938. Riboflavin_synthase-like_b-brl.
[Graphical view]
PANTHERiPTHR21098. PTHR21098. 1 hit.
PfamiPF00677. Lum_binding. 2 hits.
[Graphical view]
PIRSFiPIRSF000498. Riboflavin_syn_A. 1 hit.
SUPFAMiSSF63380. SSF63380. 2 hits.
TIGRFAMsiTIGR00187. ribE. 1 hit.
PROSITEiPS51177. LUMAZINE_BIND. 2 hits.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q01993-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MFTGIIESIG NIGAIIRHNE DLSIVVNTNN LDISDVNIGD SIATNGVCLT
60 70 80 90 100
VSKLLPSGYT ADLSLETYKR TAFHSYRIGQ EVNLEKAMLP TTRLGGHLVS
110 120 130 140 150
GHVDGVGEVI EFKRNGRAIN IWVAVPVQLK KYLSEKGSVT IDGISLTINA
160 170 180 190 200
VYQNVIKLTI VPHTLAETNL VNINIDKKVN VEIDMMARYL EKLIKVDRYE
210
SEKTSNVSMD LERYGFIS
Length:218
Mass (Da):24,095
Last modified:July 1, 1993 - v1
Checksum:iDD0F8996FCC6173E
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M90094 Genomic DNA. Translation: AAA73228.1.
PIRiJC1187.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M90094 Genomic DNA. Translation: AAA73228.1.
PIRiJC1187.

3D structure databases

ProteinModelPortaliQ01993.
ModBaseiSearch...
MobiDBiSearch...

Proteomic databases

PRIDEiQ01993.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Enzyme and pathway databases

UniPathwayiUPA00275; UER00405.

Family and domain databases

Gene3Di2.40.30.20. 2 hits.
InterProiIPR023366. ATPase_asu-like.
IPR001783. Lumazine-bd.
IPR026017. Lumazine-bd_dom.
IPR017938. Riboflavin_synthase-like_b-brl.
[Graphical view]
PANTHERiPTHR21098. PTHR21098. 1 hit.
PfamiPF00677. Lum_binding. 2 hits.
[Graphical view]
PIRSFiPIRSF000498. Riboflavin_syn_A. 1 hit.
SUPFAMiSSF63380. SSF63380. 2 hits.
TIGRFAMsiTIGR00187. ribE. 1 hit.
PROSITEiPS51177. LUMAZINE_BIND. 2 hits.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. "The lux genes in Photobacterium leiognathi are closely linked with genes corresponding in sequence to riboflavin synthesis genes."
    Lee C.Y., Meighen E.A.
    Biochem. Biophys. Res. Commun. 186:690-697(1992) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: ATCC 25521 / L1 / CIP 665.

Entry informationi

Entry nameiRISA_PHOLE
AccessioniPrimary (citable) accession number: Q01993
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 1, 1993
Last sequence update: July 1, 1993
Last modified: October 1, 2014
This is version 73 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.