Q0HLQ3LUXS_SHESMS-ribosylhomocysteine lyase4.4.1.21AI-2 synthesis proteinAutoinducer-2 production protein LuxSluxSShewmr4_0934Shewanella sp. (strain MR-4)BacteriaPseudomonadotaGammaproteobacteriaAlteromonadalesShewanellaceaeShewanellaComplete sequence of Shewanella sp. MR-4.NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]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).S-(5-deoxy-D-ribos-5-yl)-L-homocysteine = (S)-4,5-dihydroxypentane-2,3-dione + L-homocysteineFe cationBinds 1 Fe cation per subunit.Homodimer.Belongs to the LuxS family.Autoinducer synthesisIronLyaseMetal-bindingQuorum sensingFe cationFe cationFe cationMPLLDSFTVDHTRMNAPAVRVAKHMSTPKGDAITVFDLRFCAPNKDILSERGIHTLEHLFAGFMRDHLNGSDVEIIDISPMGCRTGFYMSLIGEPSERQVADAWLASMEDVLKVVEQSEIPELNEYQCGTYQMHSLEQAQDIARNIIAAGVSVNRNDDLKLSDEILGKL
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