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(-) Description

Title :  CRYSTAL STRUCTURE OF NIKR FROM HELICOBACTER PYLORI WITH VARIABLE NI SITE COORDINATION
 
Authors :  E. Pozharski, F. St John
Date :  20 Jan 10  (Deposition) - 15 Sep 10  (Release) - 27 Oct 10  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.37
Chains :  Asym./Biol. Unit :  A,B,C,D
Keywords :  Nikr, Nickel Coordination, Helicobacter Pylori, Octahedral, Square Planar, Dna-Binding, Metal-Binding, Nickel, Transcription, Transcription Regulation, Metal Binding Protein, Square Pyramidal (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  A. L. West, F. St John, P. E. Lopes, A. D. Mackerell, E. Pozharski, S. L. Michel
Holo-Ni(Ii)Hpnikr Is An Asymmetric Tetramer Containing Two Different Nickel-Binding Sites.
J. Am. Chem. Soc. V. 132 14447 2010
PubMed-ID: 20863122  |  Reference-DOI: 10.1021/JA104118R

(-) Compounds

Molecule 1 - NICKEL-RESPONSIVE REGULATOR
    ChainsA, B, C, D
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET22B+
    Expression System StrainBL21 (DE3)
    Expression System Taxid562
    Expression System Vector TypePLASMID
    GeneHP_1338, NIKR
    Organism CommonCAMPYLOBACTER PYLORI
    Organism ScientificHELICOBACTER PYLORI
    Organism Taxid85962
    Strain26695

 Structural Features

(-) Chains, Units

  1234
Asymmetric/Biological Unit ABCD

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 5)

Asymmetric/Biological Unit (2, 5)
No.NameCountTypeFull Name
1MG1Ligand/IonMAGNESIUM ION
2NI4Ligand/IonNICKEL (II) ION

(-) Sites  (5, 5)

Asymmetric Unit (5, 5)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS A:99 , HIS A:101 , CYS A:107 , HIS D:88BINDING SITE FOR RESIDUE NI A 149
2AC2SOFTWAREASP A:73 , HIS A:75 , HIS A:105BINDING SITE FOR RESIDUE MG A 150
3AC3SOFTWAREHIS B:99 , HIS B:101 , CYS B:107 , HIS C:88BINDING SITE FOR RESIDUE NI B 149
4AC4SOFTWAREHIS B:88 , HOH B:170 , HOH B:171 , HIS C:74 , HIS C:101BINDING SITE FOR RESIDUE NI C 149
5AC5SOFTWAREHIS A:88 , HOH A:157 , HIS D:74 , HIS D:101 , HOH D:170 , HOH D:171BINDING SITE FOR RESIDUE NI D 149

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1Ala A:55 -Glu A:56
2Glu A:62 -Ser A:63

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3LGH)

(-) Exons   (0, 0)

(no "Exon" information available for 3LGH)

(-) 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:131
 aligned with NIKR_HELPY | O25896 from UniProtKB/Swiss-Prot  Length:148

    Alignment length:133
                                    19        29        39        49        59        69        79        89        99       109       119       129       139   
           NIKR_HELPY    10 IIRFSVSLQQNLLDELDNRIIKNGYSSRSELVRDMIREKLVEDNWAEDNPNDESKIAVLVVIYDHHQRELNQRMIDIQHASGTHVLCTTHIHMDEHNCLETIILQGNSFEIQRLQLEIGGLRGVKFAKLTKAS 142
               SCOP domains d3lgha1 A:10-59 automated matches                 --d3lgha2 A:62-142 automated matches                                                SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeehhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhh....--..eeeeeeeee.....hhhhhhhhhhhh...eeeeeeeeeee..eeeeeeeeeehhhhhhhhhhhhhh...eeeeeeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3lgh A  10 IIRFSVSLQQNLLDELDNRIIKNGYSSRSELVRDMIREKLVEDNWAEDNP--ESKIAVLVVIYDHHQRELNQRMIDIQHASGTHVLCTTHIHMDEHNCLETIILQGNSFEIQRLQLEIGGLRGVKFAKLTKAS 142
                                    19        29        39        49        59  |     69        79        89        99       109       119       129       139   
                                                                            59 62                                                                                

Chain B from PDB  Type:PROTEIN  Length:139
 aligned with NIKR_HELPY | O25896 from UniProtKB/Swiss-Prot  Length:148

    Alignment length:139
                                    18        28        38        48        58        68        78        88        98       108       118       128       138         
           NIKR_HELPY     9 SIIRFSVSLQQNLLDELDNRIIKNGYSSRSELVRDMIREKLVEDNWAEDNPNDESKIAVLVVIYDHHQRELNQRMIDIQHASGTHVLCTTHIHMDEHNCLETIILQGNSFEIQRLQLEIGGLRGVKFAKLTKASSFEYN 147
               SCOP domains d3lghb1 B:9-60 automated matches                    d3lghb2 B:61-147 automated matches                                                      SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) ---RHH_1-3lghB01 B:12-51                   ------------------------------------------------------------------------------------------------ Pfam domains (1)
           Pfam domains (2) ---RHH_1-3lghB02 B:12-51                   ------------------------------------------------------------------------------------------------ Pfam domains (2)
         Sec.struct. author ..eeeeee.hhhhhhhhhh........hhhhhhhhhhhhhhhhhhhh........eeeeeeeee.....hhhhhhhhhhhh...eeeeeeeeeee..eeeeeeeeeehhhhhhhhhhhhhh...eeeeeeeeehhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3lgh B   9 SIIRFSVSLQQNLLDELDNRIIKNGYSSRSELVRDMIREKLVEDNWAEDNPNDESKIAVLVVIYDHHQRELNQRMIDIQHASGTHVLCTTHIHMDEHNCLETIILQGNSFEIQRLQLEIGGLRGVKFAKLTKASSFEYN 147
                                    18        28        38        48        58        68        78        88        98       108       118       128       138         

Chain C from PDB  Type:PROTEIN  Length:79
 aligned with NIKR_HELPY | O25896 from UniProtKB/Swiss-Prot  Length:148

    Alignment length:79
                                    73        83        93       103       113       123       133         
           NIKR_HELPY    64 KIAVLVVIYDHHQRELNQRMIDIQHASGTHVLCTTHIHMDEHNCLETIILQGNSFEIQRLQLEIGGLRGVKFAKLTKAS 142
               SCOP domains d3lghc_ C: automated matches                                                    SCOP domains
               CATH domains ------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeeeeeeee....hhhhhhhhhhhhh..eeeeeeeee....eeeeeeeee.hhhhhhhhhhhhhhh..eeeeeeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------- Transcript
                 3lgh C  64 KIAVLVVIYDHHQRELNQRMIDIQHASGTHVLCTTHIHMDEHNCLETIILQGNSFEIQRLQLEIGGLRGVKFAKLTKAS 142
                                    73        83        93       103       113       123       133         

Chain D from PDB  Type:PROTEIN  Length:78
 aligned with NIKR_HELPY | O25896 from UniProtKB/Swiss-Prot  Length:148

    Alignment length:78
                                    73        83        93       103       113       123       133        
           NIKR_HELPY    64 KIAVLVVIYDHHQRELNQRMIDIQHASGTHVLCTTHIHMDEHNCLETIILQGNSFEIQRLQLEIGGLRGVKFAKLTKA 141
               SCOP domains d3lghd_ D: automated matches                                                   SCOP domains
               CATH domains ------------------------------------------------------------------------------ CATH domains
           Pfam domains (1) -NikR_C-3lghD01 D:65-141                                                       Pfam domains (1)
           Pfam domains (2) -NikR_C-3lghD02 D:65-141                                                       Pfam domains (2)
           Pfam domains (3) -NikR_C-3lghD03 D:65-141                                                       Pfam domains (3)
           Pfam domains (4) -NikR_C-3lghD04 D:65-141                                                       Pfam domains (4)
         Sec.struct. author .eeeeeeeee....hhhhhhhhhhhhh..eeeeeeeee....eeeeeeeee.hhhhhhhhhhhhhhh..eeeeeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------ Transcript
                 3lgh D  64 KIAVLVVIYDHHQRELNQRMIDIQHASGTHVLCTTHIHMDEHNCLETIILQGNSFEIQRLQLEIGGLRGVKFAKLTKA 141
                                    73        83        93       103       113       123       133        

   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, 6)

Asymmetric/Biological Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3LGH)

(-) Pfam Domains  (2, 6)

Asymmetric/Biological Unit
(-)
Clan: ACT (34)

(-) Gene Ontology  (8, 8)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B,C,D   (NIKR_HELPY | O25896)
molecular function
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
    GO:0042802    identical protein binding    Interacting selectively and non-covalently with an identical protein or proteins.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016151    nickel cation binding    Interacting selectively and non-covalently with nickel (Ni) cations.
    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:0006355    regulation of transcription, DNA-templated    Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
    GO:0010045    response to nickel cation    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 a nickel cation stimulus.
    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
        NIKR_HELPY | O258962ca9 2cad 2caj 2wvb 2wvc 2wvd 2wve 2wvf 3pht 3qsi

(-) Related Entries Specified in the PDB File

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