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Protein

S-ribosylhomocysteine lyase

Gene

luxS

Organism
Shigella flexneri
Status
Reviewed-Annotation score: -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)DescriptionActionsGraphical viewLength
Metal bindingi54IronUniRule annotation1
Metal bindingi58IronUniRule annotation1
Metal bindingi128IronUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionLyase
Biological processAutoinducer synthesis, Quorum sensing
LigandIron, Metal-binding

Enzyme and pathway databases

BRENDAi4.4.1.21 5712

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:SF2714, S2901
OrganismiShigella flexneri
Taxonomic identifieri623 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeShigella
Proteomesi
  • UP000002673 Componenti: Chromosome
  • UP000001006 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001722521 – 171S-ribosylhomocysteine lyaseAdd BLAST171

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliQ83JZ4
SMRiQ83JZ4
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the LuxS family.UniRule annotation

Phylogenomic databases

eggNOGiENOG4106762 Bacteria
COG1854 LUCA
HOGENOMiHOG000040371
KOiK07173
OMAiAIHTLEH

Family and domain databases

Gene3Di3.30.1360.80, 1 hit
HAMAPiMF_00091 LuxS, 1 hit
InterProiView protein in InterPro
IPR037005 LuxS_sf
IPR011249 Metalloenz_LuxS/M16
IPR003815 S-ribosylhomocysteinase
PANTHERiPTHR35799 PTHR35799, 1 hit
PfamiView protein in Pfam
PF02664 LuxS, 1 hit
PIRSFiPIRSF006160 AI2, 1 hit
PRINTSiPR01487 LUXSPROTEIN
ProDomiView protein in ProDom or Entries sharing at least one domain
PD013172 S-ribosylhomocysteinase, 1 hit
SUPFAMiSSF63411 SSF63411, 1 hit

Sequencei

Sequence statusi: Complete.

Q83JZ4-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MPLLDSFTVD HTRMEAPAVR VAKTMNTPHG DAITVFDLRF CVPNKEVMPE
60 70 80 90 100
RGIHTLEHLF AGFMRNHLNG NGVEIIDISP MGCRTGFYMS LIGTPDEQRV
110 120 130 140 150
ADAWKAAMED VLKVQDQNQI PELNVYQCGT YQMHSLQEAQ DIARSILERE
160 170
VRINSNEELA LPKEKLQELH I
Length:171
Mass (Da):19,430
Last modified:June 1, 2003 - v1
Checksum:i131F57F1866C7A75
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE005674 Genomic DNA Translation: AAN44206.1
AE014073 Genomic DNA Translation: AAP18033.1
RefSeqiNP_708499.1, NC_004337.2
WP_001130212.1, NZ_MTPK01000075.1

Genome annotation databases

EnsemblBacteriaiAAN44206; AAN44206; SF2714
AAP18033; AAP18033; S2901
GeneIDi1025700
KEGGisfl:SF2714
sfx:S2901
PATRICifig|198214.7.peg.3233

Similar proteinsi

Entry informationi

Entry nameiLUXS_SHIFL
AccessioniPrimary (citable) accession number: Q83JZ4
Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 26, 2004
Last sequence update: June 1, 2003
Last modified: May 23, 2018
This is version 94 of the entry and version 1 of the sequence. See 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

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