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Protein

S-ribosylhomocysteine lyase

Gene

luxS

Organism
Lactobacillus fermentum (strain NBRC 3956 / LMG 18251)
Status
Reviewed-Annotation score: Annotation score: 2 out of 5-Protein inferred from homologyi

Functioni

Involved in the synthesis of autoinducer 2 (AI-2) which is secreted by bacteria and is used to communicate both the cell density and the metabolic potential of the environment. The regulation of gene expression in response to changes in cell density is called quorum sensing. Catalyzes the transformation of S-ribosylhomocysteine (RHC) to homocysteine (HC) and 4,5-dihydroxy-2,3-pentadione (DPD).UniRule annotation

Catalytic activityi

S-(5-deoxy-D-ribos-5-yl)-L-homocysteine = L-homocysteine + (4S)-4,5-dihydroxypentan-2,3-dione.UniRule annotation

Cofactori

Fe cationUniRule annotationNote: Binds 1 Fe cation per subunit.UniRule annotation

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi54 – 541IronUniRule annotation
Metal bindingi58 – 581IronUniRule annotation
Metal bindingi124 – 1241IronUniRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Lyase

Keywords - Biological processi

Autoinducer synthesis, Quorum sensing

Keywords - Ligandi

Iron, Metal-binding

Enzyme and pathway databases

BioCyciLFER334390:GJ2S-1669-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
S-ribosylhomocysteine lyaseUniRule annotation (EC:4.4.1.21UniRule annotation)
Alternative name(s):
AI-2 synthesis proteinUniRule annotation
Autoinducer-2 production protein LuxSUniRule annotation
Gene namesi
Name:luxSUniRule annotation
Ordered Locus Names:LAF_1600
OrganismiLactobacillus fermentum (strain NBRC 3956 / LMG 18251)
Taxonomic identifieri334390 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliLactobacillalesLactobacillaceaeLactobacillus
ProteomesiUP000001697 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 158158S-ribosylhomocysteine lyasePRO_1000093314Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Family & Domainsi

Sequence similaritiesi

Belongs to the LuxS family.UniRule annotation

Phylogenomic databases

eggNOGiCOG1854.
HOGENOMiHOG000040372.
KOiK07173.
OMAiAGFMREH.
OrthoDBiEOG68WRBM.

Family and domain databases

Gene3Di3.30.1360.80. 1 hit.
HAMAPiMF_00091. LuxS.
InterProiIPR011249. Metalloenz_LuxS/M16.
IPR003815. S-ribosylhomocysteinase.
[Graphical view]
PfamiPF02664. LuxS. 1 hit.
[Graphical view]
PIRSFiPIRSF006160. AI2. 1 hit.
PRINTSiPR01487. LUXSPROTEIN.
ProDomiPD013172. S-ribosylhomocysteinase. 1 hit.
[Graphical view] [Entries sharing at least one domain]
SUPFAMiSSF63411. SSF63411. 1 hit.

Sequencei

Sequence statusi: Complete.

B2GE54-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAKVESFTLD HTKVKAPYVR LITVEEGPKG DKIANYDLRL VQPNENAIPT
60 70 80 90 100
AGLHTIEHLL AGLLRDRLDG VIDCSPFGCR TGFHLITWGE HSTTDVAKAL
110 120 130 140 150
KSSLEEIAYH TEWEDVQGTT IESCGNYRDH SLFSAKEWSK TILDQGISDQ

PFERHVVE
Length:158
Mass (Da):17,719
Last modified:June 10, 2008 - v1
Checksum:iF69AF66818EA438A
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AP008937 Genomic DNA. Translation: BAG27936.1.
RefSeqiWP_003681394.1. NC_010610.1.

Genome annotation databases

EnsemblBacteriaiBAG27936; BAG27936; LAF_1600.
GeneIDi6233250.
KEGGilfe:LAF_1600.
PATRICi22227600. VBILacFer15497_1761.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AP008937 Genomic DNA. Translation: BAG27936.1.
RefSeqiWP_003681394.1. NC_010610.1.

3D structure databases

ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAG27936; BAG27936; LAF_1600.
GeneIDi6233250.
KEGGilfe:LAF_1600.
PATRICi22227600. VBILacFer15497_1761.

Phylogenomic databases

eggNOGiCOG1854.
HOGENOMiHOG000040372.
KOiK07173.
OMAiAGFMREH.
OrthoDBiEOG68WRBM.

Enzyme and pathway databases

BioCyciLFER334390:GJ2S-1669-MONOMER.

Family and domain databases

Gene3Di3.30.1360.80. 1 hit.
HAMAPiMF_00091. LuxS.
InterProiIPR011249. Metalloenz_LuxS/M16.
IPR003815. S-ribosylhomocysteinase.
[Graphical view]
PfamiPF02664. LuxS. 1 hit.
[Graphical view]
PIRSFiPIRSF006160. AI2. 1 hit.
PRINTSiPR01487. LUXSPROTEIN.
ProDomiPD013172. S-ribosylhomocysteinase. 1 hit.
[Graphical view] [Entries sharing at least one domain]
SUPFAMiSSF63411. SSF63411. 1 hit.
ProtoNetiSearch...

Publicationsi

  1. "Comparative genome analysis of Lactobacillus reuteri and Lactobacillus fermentum reveal a genomic island for reuterin and cobalamin production."
    Morita H., Toh H., Fukuda S., Horikawa H., Oshima K., Suzuki T., Murakami M., Hisamatsu S., Kato Y., Takizawa T., Fukuoka H., Yoshimura T., Itoh K., O'Sullivan D.J., McKay L.L., Ohno H., Kikuchi J., Masaoka T., Hattori M.
    DNA Res. 15:151-161(2008) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: NBRC 3956 / LMG 18251.

Entry informationi

Entry nameiLUXS_LACF3
AccessioniPrimary (citable) accession number: B2GE54
Entry historyi
Integrated into UniProtKB/Swiss-Prot: March 24, 2009
Last sequence update: June 10, 2008
Last modified: July 22, 2015
This is version 50 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. 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.