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(-)Asym./Biol. Unit
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(-) Description

Title :  CRYSTAL STRUCTURE OF TETR TRIPLE MUTANT (H64K, S135L, S138I)
 
Authors :  M. A. Klieber, O. Scholz, S. Lochner, P. Gmeiner, W. Hillen, Y. A. Muller
Date :  16 Dec 08  (Deposition) - 27 Oct 09  (Release) - 27 Oct 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.10
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Tetracycline Repressor, Bacterial Transcription Regulation, Altered Inducer Specificity, 4-De-Dimethylamino- Anhydrotetracycline, Antibiotic Resistance, Dna-Binding, Magnesium, Metal-Binding, Repressor, Transcription, Transcription Regulation, Transposable Element (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  M. A. Klieber, O. Scholz, S. Lochner, P. Gmeiner, W. Hillen, Y. A. Muller
Structural Origins For Selectivity And Specificity In An Engineered Bacterial Repressor-Inducer Pair.
Febs J. V. 276 5610 2009
PubMed-ID: 19712110  |  Reference-DOI: 10.1111/J.1742-4658.2009.07254.X
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - TETRACYCLINE REPRESSOR PROTEIN CLASS B FROM TRANSPOSON TN10, TETRACYCLINE REPRESSOR PROTEIN CLASS D
    Chains: A, B
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PWH610
    Expression System Strain: RB791
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Fragment: DNA-BINDING DOMAIN (RESIDUES 1-50) AND THE EFFECTOR-BINDING DOMAIN (RESIDUES 51-208)
    Gene: TETR
    Mutation: YES
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 562
    Other Details: THE FUSION PROTEIN OF DNA-BINDING DOMAIN (RESIDUES 1-50) FROM TETR VARIANT B AND THE EFFECTOR- BINDING DOMAIN (RESIDUES 51-208) FROM TETR VARIANT D
    Strain: K12

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 3FK6)

(-) Sites  (0, 0)

(no "Site" information available for 3FK6)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3FK6)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 3FK6)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3FK6)

(-) PROSITE Motifs  (2, 3)

Asymmetric/Biological Unit (2, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1HTH_TETR_2PS50977 TetR-type HTH domain profile.TETR4_ECOLX3-63  1B:3-63
2HTH_TETR_1PS01081 TetR-type HTH domain signature.TETR4_ECOLX21-52
 		  2A:21-52
B:21-52

(-) Exons   (0, 0)

(no "Exon" information available for 3FK6)

(-) Sequences/Alignments

Asymmetric/Biological 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:195
 aligned with TETR4_ECOLX | P0ACT4 from UniProtKB/Swiss-Prot  Length:218

    Alignment length:204
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203    
          TETR4_ECOLX     4 LNRESVIDAALELLNETGIDGLTTRKLAQKLGIEQPTLYWHVKNKRALLDALAVEILARHHDYSLPAAGESWQSFLRNNAMSFRRALLRYRDGAKVHLGTRPDEKQYDTVETQLRFMTENGFSLRDGLYAISAVSHFTLGAVLEQQEHTAALTDRPAAPDENLPPLLREALQIMDSDDGEQAFLHGLESLIRGFEVQLTALLQI 207
               SCOP domains d3fk6a1 A:4-67 Tetracyclin repressor (Tet-repressor, TetR)      d3fk6a2 A:68-207 Tetracyclin repressor (Tet-repressor, TetR)                                                                                 SCOP domains
               CATH domains 3fk6A01 A:4-66 Homeodomain-like                                3fk6A02 A:67-207 Tetracycline Repressor, domain 2                                                                                             CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhh...hhhhhhhhhhhhhhhhhh.........hhhhhhhhhhhhhhhhhhh..hhhhhhh....hhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhh.---------..hhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                PROSITE (1) HTH_TETR_2  PDB: - UniProt: 3-63                            ------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE (1)
                PROSITE (2) -----------------HTH_TETR_1  PDB: A:21-52        ----------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 3fk6 A   4 LDKSKVINSALELLNEVGIEGLTTRKLAQKLGVEQPTLYWHVKNKRALLDALAVEILARHKDYSLPAAGESWQSFLRNNAMSFRRALLRYRDGAKVHLGTRPDEKQYDTVETQLRFMTENGFSLRDGLYAILAVIHFTLGAVLEQQEHTAAL---------NLPPLLREALQIMDSDDGEQAFLHGLESLIRGFEVQLTALLQI 207
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153 |       - |     173       183       193       203    
                                                                                                                                                                                 155       165                                          


Chain B from PDB  Type:PROTEIN  Length:194
 aligned with TETR4_ECOLX | P0ACT4 from UniProtKB/Swiss-Prot  Length:218

    Alignment length:202
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202  
          TETR4_ECOLX     3 RLNRESVIDAALELLNETGIDGLTTRKLAQKLGIEQPTLYWHVKNKRALLDALAVEILARHHDYSLPAAGESWQSFLRNNAMSFRRALLRYRDGAKVHLGTRPDEKQYDTVETQLRFMTENGFSLRDGLYAISAVSHFTLGAVLEQQEHTAALTDRPAAPDENLPPLLREALQIMDSDDGEQAFLHGLESLIRGFEVQLTAL 204
               SCOP domains d3fk6b1 B:3-67 Tetracyclin repressor (Tet-repressor, TetR)       d3fk6b2 B:68-204 Tetracyclin repressor (Tet-repressor, TetR)                                                                              SCOP domains
               CATH domains 3fk6B01 B:3-66 Homeodomain-like                                 3fk6B02 B:67-204 Tetracycline Repressor, domain 2                                                                                          CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhh....hhhhhhhhhhhhhhhhhh.........hhhhhhhhhhhhhhhhhhhh.hhhhhhh....hhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh--------...hhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) HTH_TETR_2  PDB: B:3-63 UniProt: 3-63                        --------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (1)
                PROSITE (2) ------------------HTH_TETR_1  PDB: B:21-52        -------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3fk6 B   3 RLDKSKVINSALELLNEVGIEGLTTRKLAQKLGVEQPTLYWHVKNKRALLDALAVEILARHKDYSLPAAGESWQSFLRNNAMSFRRALLRYRDGAKVHLGTRPDEKQYDTVETQLRFMTENGFSLRDGLYAILAVIHFTLGAVLEQQEHTAAL--------ENLPPLLREALQIMDSDDGEQAFLHGLESLIRGFEVQLTAL 204
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152  |      - |     172       182       192       202  
                                                                                                                                                                                  155      164
   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, 4)

Asymmetric/Biological Unit
(-)
Class: All alpha proteins (14657)

(-) CATH Domains  (2, 4)

Asymmetric/Biological Unit
(-)
Class: Mainly Alpha (13335)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3FK6)

(-) Gene Ontology  (6, 12)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (TETR4_ECOLX | P0ACT4)
molecular function
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
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:0046677    response to antibiotic    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an antibiotic stimulus. An antibiotic is a chemical substance produced by a microorganism which has the capacity to inhibit the growth of or to kill other microorganisms.
    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
        TETR2_ECOLX | P04483: 2ns7 2ns8 2vkv 2xgc 2xgd 2xge 3fk7 3zqf 3zqg 3zqh 3zqi 4ac0
        TETR4_ECOLX | P0ACT4: 1a6i 1bjz 1ork 1qpi 2fj1 2ns7 2ns8 2o7o 2tct 2trt 2vke 2vkv 2x6o 2x9d 2xb5 2xgc 2xgd 2xge 2xpu 2xpv 2xpw 2xrl 3fk7 3zqf 3zqg 3zqh 3zqi 4abz 4aux 4b1r 4b3a 4d7m 4d7n 4v2f 4v2g 5fkk 5fkl 5fkm 5fkn 5fko

(-) Related Entries Specified in the PDB File

2o7o 2tct 2vke 2vkv 3fk7