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(-) Description

Title :  CRYSTAL STRUCTURE OF THE MULTIDRUG BINDING TRANSCRIPTIONAL REPRESSOR QACR BOUND TO TWO DRUGS: ETHIDIUM AND PROFLAVINE
 
Authors :  M. A. Schumacher, M. C. Miller, R. G. Brennan
Date :  28 Aug 03  (Deposition) - 03 Aug 04  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.96
Chains :  Asym. Unit :  A,B,D,E
Biol. Unit 1:  A,B  (1x)
Biol. Unit 2:  D,E  (1x)
Biol. Unit 3:  A,B  (2x)
Keywords :  Qacr, Multidrug Binding Protein, Transcription, Repressor, Cooperative Dna Binding (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  M. A. Schumacher, M. C. Miller, R. G. Brennan
Structural Mechanism Of The Simultaneous Binding Of Two Drugs To A Multidrug-Binding Protein
Embo J. V. 23 2923 2004
PubMed-ID: 15257299  |  Reference-DOI: 10.1038/SJ.EMBOJ.7600288
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - TRANSCRIPTIONAL REGULATOR QACR
    ChainsB, D, A, E
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    FragmentQACR
    GeneQACR OR SAVP031
    Organism ScientificSTAPHYLOCOCCUS AUREUS
    Organism Taxid1280

 Structural Features

(-) Chains, Units

  1234
Asymmetric Unit ABDE
Biological Unit 1 (1x)AB  
Biological Unit 2 (1x)  DE
Biological Unit 3 (2x)AB  

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 2)

Asymmetric Unit (2, 2)
No.NameCountTypeFull Name
1ET1Ligand/IonETHIDIUM
2PRL1Ligand/IonPROFLAVIN
Biological Unit 1 (1, 1)
No.NameCountTypeFull Name
1ET-1Ligand/IonETHIDIUM
2PRL1Ligand/IonPROFLAVIN
Biological Unit 2 (0, 0)
No.NameCountTypeFull Name
1ET-1Ligand/IonETHIDIUM
2PRL-1Ligand/IonPROFLAVIN
Biological Unit 3 (1, 2)
No.NameCountTypeFull Name
1ET-1Ligand/IonETHIDIUM
2PRL2Ligand/IonPROFLAVIN

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLN A:96 , ILE A:100 , TYR A:103 , TYR A:107 , GLU A:120 , TYR A:123 , ASN A:157 , ASN B:97 , PHE B:162BINDING SITE FOR RESIDUE ET A 195
2AC2SOFTWAREGLU A:58 , TRP A:61 , THR A:89 , GLU A:90 , TYR A:103BINDING SITE FOR RESIDUE PRL A 196

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1QVU)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 4)

Asymmetric Unit (1, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1HTH_TETR_1PS01081 TetR-type HTH domain signature.QACR_STAAU19-49
 
 
 
  4A:19-49
B:19-49
D:19-49
E:19-49
Biological Unit 1 (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1HTH_TETR_1PS01081 TetR-type HTH domain signature.QACR_STAAU19-49
 
 
 
  2A:19-49
B:19-49
-
-
Biological Unit 2 (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1HTH_TETR_1PS01081 TetR-type HTH domain signature.QACR_STAAU19-49
 
 
 
  2-
-
D:19-49
E:19-49
Biological Unit 3 (1, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1HTH_TETR_1PS01081 TetR-type HTH domain signature.QACR_STAAU19-49
 
 
 
  4A:19-49
B:19-49
-
-

(-) Exons   (0, 0)

(no "Exon" information available for 1QVU)

(-) 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:186
 aligned with QACR_STAAU | P0A0N4 from UniProtKB/Swiss-Prot  Length:188

    Alignment length:186
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181      
           QACR_STAAU     2 NLKDKILGVAKELFIKNGYNATTTGEIVKLSESSKGNLYYHFKTKENLFLEILNIEESKWQEQWKKEQIKCKTNREKFYLYNELSLTTEYYYPLQNAIIEFYTEYYKTNSINEKMNKLENKYIDAYHVIFKEGNLNGEWCINDVNAVSKIAANAVNGIVTFTHEQNINERIKLMNKFSQIFLNGLS 187
               SCOP domains d1qvua1 A:2-72 Multidrug binding protein QacR                          d1qvua2 A:73-187 Multidrug binding protein QacR                                                                     SCOP domains
               CATH domains 1qvuA01 A:2-50 Homeodomain-like                  1qvuA02 A:51-187 Tetracycline Repressor, domain 2                                                                                         CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhh..hhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE -----------------HTH_TETR_1  PDB: A:19-49       ------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1qvu A   2 NLKDKILGVAKELFIKNGYNATTTGEIVKLSESSKGNLYYHFKTKENLFLEILNIEESKWQEQWKKEQIKCKTNREKFYLYNELSLTTEYYYPLQNAIIEFYTEYYKTNSINEKMNKLENKYIDAYHVIFKEGNLNGEWSINDVNAVSKIAANAVNGIVTFTHEQNINERIKLMNKFSQIFLNGLS 187
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181      

Chain B from PDB  Type:PROTEIN  Length:186
 aligned with QACR_STAAU | P0A0N4 from UniProtKB/Swiss-Prot  Length:188

    Alignment length:186
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181      
           QACR_STAAU     2 NLKDKILGVAKELFIKNGYNATTTGEIVKLSESSKGNLYYHFKTKENLFLEILNIEESKWQEQWKKEQIKCKTNREKFYLYNELSLTTEYYYPLQNAIIEFYTEYYKTNSINEKMNKLENKYIDAYHVIFKEGNLNGEWCINDVNAVSKIAANAVNGIVTFTHEQNINERIKLMNKFSQIFLNGLS 187
               SCOP domains d1qvub1 B:2-72 Multidrug binding protein QacR                          d1qvub2 B:73-187 Multidrug binding protein QacR                                                                     SCOP domains
               CATH domains 1qvuB01 B:2-50 Homeodomain-like                  1qvuB02 B:51-187 Tetracycline Repressor, domain 2                                                                                         CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhhh.....hhhhhhhhh..hhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhh....hhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhhhhhh..........hhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE -----------------HTH_TETR_1  PDB: B:19-49       ------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1qvu B   2 NLKDKILGVAKELFIKNGYNATTTGEIVKLSESSKGNLYYHFKTKENLFLEILNIEESKWQEQWKKEQIKCKTNREKFYLYNELSLTTEYYYPLQNAIIEFYTEYYKTNSINEKMNKLENKYIDAYHVIFKEGNLNGEWSINDVNAVSKIAANAVNGIVTFTHEQNINERIKLMNKFSQIFLNGLS 187
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181      

Chain D from PDB  Type:PROTEIN  Length:186
 aligned with QACR_STAAU | P0A0N4 from UniProtKB/Swiss-Prot  Length:188

    Alignment length:186
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181      
           QACR_STAAU     2 NLKDKILGVAKELFIKNGYNATTTGEIVKLSESSKGNLYYHFKTKENLFLEILNIEESKWQEQWKKEQIKCKTNREKFYLYNELSLTTEYYYPLQNAIIEFYTEYYKTNSINEKMNKLENKYIDAYHVIFKEGNLNGEWCINDVNAVSKIAANAVNGIVTFTHEQNINERIKLMNKFSQIFLNGLS 187
               SCOP domains d1qvud1 D:2-72 Multidrug binding protein QacR                          d1qvud2 D:73-187 Multidrug binding protein QacR                                                                     SCOP domains
               CATH domains 1qvuD01 D:2-50 Homeodomain-like                  1qvuD02 D:51-187 Tetracycline Repressor, domain 2                                                                                         CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhh.....hhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE -----------------HTH_TETR_1  PDB: D:19-49       ------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1qvu D   2 NLKDKILGVAKELFIKNGYNATTTGEIVKLSESSKGNLYYHFKTKENLFLEILNIEESKWQEQWKKEQIKCKTNREKFYLYNELSLTTEYYYPLQNAIIEFYTEYYKTNSINEKMNKLENKYIDAYHVIFKEGNLNGEWSINDVNAVSKIAANAVNGIVTFTHEQNINERIKLMNKFSQIFLNGLS 187
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181      

Chain E from PDB  Type:PROTEIN  Length:186
 aligned with QACR_STAAU | P0A0N4 from UniProtKB/Swiss-Prot  Length:188

    Alignment length:186
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181      
           QACR_STAAU     2 NLKDKILGVAKELFIKNGYNATTTGEIVKLSESSKGNLYYHFKTKENLFLEILNIEESKWQEQWKKEQIKCKTNREKFYLYNELSLTTEYYYPLQNAIIEFYTEYYKTNSINEKMNKLENKYIDAYHVIFKEGNLNGEWCINDVNAVSKIAANAVNGIVTFTHEQNINERIKLMNKFSQIFLNGLS 187
               SCOP domains d1qvue1 E:2-72 Multidrug binding protein QacR                          d1qvue2 E:73-187 Multidrug binding protein QacR                                                                     SCOP domains
               CATH domains 1qvuE01 E:2-50 Homeodomain-like                  1qvuE02 E:51-187 Tetracycline Repressor, domain 2                                                                                         CATH domains
           Pfam domains (1) -----TetR_N-1qvuE01 E:7-53                          ---TetR_C_5-1qvuE05 E:57-187                                                                                                           Pfam domains (1)
           Pfam domains (2) -----TetR_N-1qvuE02 E:7-53                          ---TetR_C_5-1qvuE06 E:57-187                                                                                                           Pfam domains (2)
           Pfam domains (3) -----TetR_N-1qvuE03 E:7-53                          ---TetR_C_5-1qvuE07 E:57-187                                                                                                           Pfam domains (3)
           Pfam domains (4) -----TetR_N-1qvuE04 E:7-53                          ---TetR_C_5-1qvuE08 E:57-187                                                                                                           Pfam domains (4)
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE -----------------HTH_TETR_1  PDB: E:19-49       ------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1qvu E   2 NLKDKILGVAKELFIKNGYNATTTGEIVKLSESSKGNLYYHFKTKENLFLEILNIEESKWQEQWKKEQIKCKTNREKFYLYNELSLTTEYYYPLQNAIIEFYTEYYKTNSINEKMNKLENKYIDAYHVIFKEGNLNGEWSINDVNAVSKIAANAVNGIVTFTHEQNINERIKLMNKFSQIFLNGLS 187
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181      

   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  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  (2, 8)

Asymmetric Unit

(-) CATH Domains  (2, 8)

Asymmetric Unit

(-) Pfam Domains  (2, 8)

Asymmetric Unit
(-)
Clan: HTH (544)
(-)
Clan: TetR_C (33)

(-) Gene Ontology  (5, 5)

Asymmetric Unit(hide GO term definitions)
Chain A,B,D,E   (QACR_STAAU | P0A0N4)
molecular function
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
    GO:0003700    transcription factor activity, sequence-specific DNA binding    Interacting selectively and non-covalently with a specific DNA sequence in order to modulate transcription. The transcription factor may or may not also interact selectively with a protein or macromolecular complex.
biological process
    GO:0045892    negative regulation of transcription, DNA-templated    Any process that stops, prevents, or reduces the frequency, rate or extent of cellular DNA-templated transcription.
    GO:0006355    regulation of transcription, DNA-templated    Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
    GO:0006351    transcription, DNA-templated    The cellular synthesis of RNA on a template of DNA.

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 Related Entries

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

UniProtKB/Swiss-Prot
        QACR_STAAU | P0A0N41jt0 1jt6 1jtx 1jty 1jum 1jup 1jus 1qvt 1rkw 1rpw 2dtz 2gby 2hq5

(-) Related Entries Specified in the PDB File

1jt0 QACR-DNA COMPLEX
1jt6 QACR-DEQUALINIUM COMPLEX
1jtx QACR-CRYSTAL VIOLET COMPLEX
1jty QACR-ETHIDIUM COMPLEX
1jus QACR-R6G COMPLEX
1qvt QACR-PROFLAVINE COMPLEX