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(-) Description

Title :  CRYSTAL STRUCTURE OF THE C-TERMINAL DOMAIN OF TONB
 
Authors :  J. Koedding, P. Howard, L. Kaufmann, P. Polzer, A. Lustig, W. Welte
Date :  09 Sep 03  (Deposition) - 06 Apr 04  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.70
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (2x)
Keywords :  Tonb Dimerization, , Transport Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  J. Koedding, P. Howard, L. Kaufmann, P. Polzer, A. Lustig, W. Welte
Dimerization Of Tonb Is Not Essential For Its Binding To Th Outer Membrane Siderophore Receptor Fhua Of Escherichia Coli.
J. Biol. Chem. V. 279 9978 2004
PubMed-ID: 14665631  |  Reference-DOI: 10.1074/JBC.M311720200

(-) Compounds

Molecule 1 - TONB PROTEIN
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI BL21(DE3)
    Expression System PlasmidPET30A
    Expression System StrainBL21(DE3)
    Expression System Taxid469008
    Expression System Vector TypePLASMID
    FragmentRESIDUES 164-239
    GeneTONB
    Organism ScientificESCHERICHIA COLI
    Organism Taxid562

 Structural Features

(-) Chains, Units

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

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 1QXX)

(-) Sites  (0, 0)

(no "Site" information available for 1QXX)

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (1, 1)

Asymmetric Unit (1, 1)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_TONB_ECOLI_006 *V176ITONB_ECOLI  ---  ---AV176I
   * ID not provided by source

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 1 (1, 2)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_TONB_ECOLI_006 *V176ITONB_ECOLI  ---  ---AV176I
   * ID not provided by source

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1QXX)

(-) 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:76
 aligned with TONB_ECOLI | P02929 from UniProtKB/Swiss-Prot  Length:239

    Alignment length:76
                                   173       183       193       203       213       223       233      
           TONB_ECOLI   164 PARAQALRIEGQVKVKFDVTPDGRVDNVQILSAKPANMFEREVKNAMRRWRYEPGKPGSGIVVNILFKINGTTEIQ 239
               SCOP domains d1qxxa_ A: TonB                                                              SCOP domains
               CATH domains ---------------------------------------------------------------------------- CATH domains
               Pfam domains TonB-1qxxA01 A:164-233                                                ------ Pfam domains
         Sec.struct. author .............eeeeee.....eeeeeee......hhhhhhhhhh............................. Sec.struct. author
                 SAPs(SNPs) ------------I--------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------- Transcript
                 1qxx A 164 PARAQALRIEGQVKVKFDVTPDGRVDNVQILSAKPANMFEREVKNAMRRWRYEPGKPGSGIVVNILFKINGTTEIQ 239
                                   173       183       193       203       213       223       233      

   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  (1, 1)

Asymmetric Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1QXX)

(-) Pfam Domains  (1, 1)

Asymmetric Unit

(-) Gene Ontology  (15, 15)

Asymmetric Unit(hide GO term definitions)
Chain A   (TONB_ECOLI | P02929)
molecular function
    GO:0031992    energy transducer activity    The biological transducer activity that accepts energy and converts it to another form, often by transfer to another molecule within the cell.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0015343    siderophore transmembrane transporter activity    Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: siderophore-iron(out) + H+(out) = siderophore-iron(in) + H+(in).
biological process
    GO:0043213    bacteriocin transport    The directed movement of a bacteriocin into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. Bacteriocins are a group of antibiotics produced by bacteria and are encoded by a group of naturally occurring plasmids, e.g. Col E1. Bacteriocins are toxic to bacteria closely related to the bacteriocin producing strain.
    GO:0015889    cobalamin transport    The directed movement of cobalamin (vitamin B12), a water-soluble vitamin characterized by possession of a corrin nucleus containing a cobalt atom, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0042914    colicin transport    The directed movement of a colicin into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. Colicins are a group of antibiotics produced by E. coli and related species that are encoded by a group of naturally occurring plasmids, e.g. Col E1.
    GO:0015031    protein transport    The directed movement of proteins into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0044718    siderophore transmembrane transport    The directed movement of siderophores, low molecular weight Fe(III)-chelating substances, from one side of a membrane to the other, by means of some agent such as a transporter or pore.
    GO:0015891    siderophore transport    The directed movement of siderophores, low molecular weight Fe(III)-chelating substances, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0006810    transport    The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
cellular component
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0031233    intrinsic component of external side of plasma membrane    The component of a plasma membrane consisting of gene products and protein complexes that penetrate the external side of the plasma membrane only, either directly or via some covalently attached hydrophobic anchor.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0030288    outer membrane-bounded periplasmic space    The region between the inner (cytoplasmic or plasma) membrane and outer membrane of organisms with two membranes such as Gram negative bacteria. These periplasmic spaces are relatively thick and contain a thin peptidoglycan layer (PGL), also referred to as a thin cell wall.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

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 Related Entries

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

UniProtKB/Swiss-Prot
        TONB_ECOLI | P029291ihr 1u07 1xx3 2grx 2gsk

(-) Related Entries Specified in the PDB File

1ihr DIMERIC C-TERMINAL DOMAIN OF TONB