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(-) Description

Title :  THE 2.3 ANGSTROM RESOLUTION STRUCTURE OF BACILLUS SUBTILIS LUXS/HOMOCYSTEINE COMPLEX
 
Authors :  S. N. Ruzheinikov, S. K. Das, S. E. Sedelnikova, A. Hartley, S. J. Foster M. J. Horsburgh, A. G. Cox, C. W. Mccleod, A. Mekhalfia, G. M. Blackburn D. W. Rice, P. J. Baker
Date :  09 Aug 01  (Deposition) - 24 Oct 01  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.30
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (2x)
Keywords :  Autoinducer Synthesis, Signaling Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  S. N. Ruzheinikov, S. K. Das, S. E. Sedelnikova, A. Hartley, S. J. Foster, M. J. Horsburgh, A. G. Cox, C. W. Mccleod, A. Mekhalfia, G. M. Blackburn, D. W. Rice, P. J. Baker
The 1. 2 A Structure Of A Novel Quorum-Sensing Protein, Bacillus Subtilis Luxs
J. Mol. Biol. V. 313 111 2001
PubMed-ID: 11601850  |  Reference-DOI: 10.1006/JMBI.2001.5027
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - AUTOINDUCER-2 PRODUCTION PROTEIN LUXS
    Chains: A
    EC Number: 4.4.1.21
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PSKD1
    Expression System Strain: TUNER (DE3) PLACI
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: LUXS
    Mutation: YES
    Organism Scientific: BACILLUS SUBTILIS
    Organism Taxid: 1423
    Synonym: S-RIBOSYLHOMOCYSTEINE LYASE, AI-2 SYNTHESIS PROTEIN

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit : A
Biological Unit 1 (2x): A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 5)

Asymmetric Unit (3, 5)
No.NameCountTypeFull Name
1HCS3Ligand/Ion2-AMINO-4-MERCAPTO-BUTYRIC ACID
2OCS1Mod. Amino AcidCYSTEINESULFONIC ACID
3ZN1Ligand/IonZINC ION
Biological Unit 1 (2, 8)
No.NameCountTypeFull Name
1HCS6Ligand/Ion2-AMINO-4-MERCAPTO-BUTYRIC ACID
2OCS2Mod. Amino AcidCYSTEINESULFONIC ACID
3ZN-1Ligand/IonZINC ION

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS A:54 , HIS A:58 , CYS A:126BINDING SITE FOR RESIDUE ZN A 300
2AC2SOFTWARELYS A:35 , GLU A:57 , ALA A:61 , ARG A:65 , ASP A:78 , ILE A:79 , SER A:80 , HCS A:402BINDING SITE FOR RESIDUE HCS A 401
3AC3SOFTWARECYS A:22 , GLY A:23 , LYS A:35 , TYR A:89 , HCS A:401 , HOH A:408 , HOH A:426BINDING SITE FOR RESIDUE HCS A 402
4AC4SOFTWAREHIS A:21 , VAL A:24 , CYS A:41 , GLN A:46 , ALA A:47 , GLU A:95 , ARG A:139 , HOH A:434BINDING SITE FOR RESIDUE HCS A 403

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1JQW)

(-) Cis Peptide Bonds  (1, 1)

Asymmetric Unit
No.Residues
1Ala A:16 -Pro A:17

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1JQW)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1JQW)

(-) Exons   (0, 0)

(no "Exon" information available for 1JQW)

(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:150
 aligned with LUXS_BACSU | O34667 from UniProtKB/Swiss-Prot  Length:157

    Alignment length:150
                                    17        27        37        47        57        67        77        87        97       107       117       127       137       147       157
           LUXS_BACSU     8 ELDHNAVVAPYVRHCGVHKVGTDGVVNKFDIRFCQPNKQAMKPDTIHTLEHLLAFTIRSHAEKYDHFDIIDISPMGCQTGYYLVVSGEPTSAEIVDLLEDTMKEAVEITEIPAANEKQCGQAKLHDLEGAKRLMRFWLSQDKEELLKVFG 157
               SCOP domains d1jqwa_ A: Autoinducer-2 production protein LuxS                                                                                                       SCOP domains
               CATH domains 1jqwA00 A:8-157  [code=3.30.1360.80, no name defined]                                                                                                  CATH domains
               Pfam domains LuxS-1jqwA01 A:8-156                                                                                                                                 - Pfam domains
         Sec.struct. author ..........eeeeeeeeee...eeeeeeeee.........hhhhhhhhhhhhhhhhhhhhh....eeeeeeee.....eeeeeeee..hhhhhhhhhhhhhhhhh...................hhhhhhhhhhhhhh.hhhhhh.... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1jqw A   8 ELDHNAVVAPYVRHCGVHKVGTDGVVNKFDIRFCQPNKQAMKPDTIHTLEHLLAFTIRSHAEKYDHFDIIDISPMGcQTGYYLVVSGETTSAEIVDLLEDTMKEAVEITEIPAANEKQCGQAKLHDLEGAKRLMRFWLSQDKEELLKVFG 157
                                    17        27        37        47        57        67        77      | 87        97       107       117       127       137       147       157
                                                                                                       84-OCS
   Legend:   → Mismatch (orange background)
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  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 1)

Asymmetric Unit
(-)
Class: Alpha and beta proteins (a+b) (23004)

(-) CATH Domains  (1, 1)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (1, 1)

Asymmetric Unit
(-)
Clan: Peptidase_ME (35)

(-) Gene Ontology  (6, 6)

Asymmetric Unit(hide GO term definitions)
Chain A   (LUXS_BACSU | O34667)
molecular function
    GO:0043768    S-ribosylhomocysteine lyase activity    Catalysis of the reaction: S-(5-deoxy-D-ribos-5-yl)-L-homocysteine = (S)-4,5-dihydroxypentane-2,3-dione + L-homocysteine.
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    GO:0005506    iron ion binding    Interacting selectively and non-covalently with iron (Fe) ions.
    GO:0016829    lyase activity    Catalysis of the cleavage of C-C, C-O, C-N and other bonds by other means than by hydrolysis or oxidation, or conversely adding a group to a double bond. They differ from other enzymes in that two substrates are involved in one reaction direction, but only one in the other direction. When acting on the single substrate, a molecule is eliminated and this generates either a new double bond or a new ring.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
biological process
    GO:0009372    quorum sensing    The process in which single-celled organisms monitor their population density by detecting the concentration of small, diffusible signal molecules produced by the cells themselves.

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  1jqw
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  LUXS_BACSU | O34667
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  4.4.1.21
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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        LUXS_BACSU | O34667: 1ie0 1j98 1jvi 1ycl 2fqo 2fqt

(-) Related Entries Specified in the PDB File

1j98 1J98 CONTAINS THE SAME PROTEIN NATIVE FORM