Show PDB file:   
         Plain Text   HTML   (compressed file size)
QuickSearch:   
by PDB,NDB,UniProt,PROSITE Code or Search Term(s)  
(-)Asym./Biol. Unit
(-)Asym./Biol. Unit - sites
collapse expand < >
Image Asym./Biol. Unit
Asym./Biol. Unit  (Jmol Viewer)
Image Asym./Biol. Unit - sites
Asym./Biol. Unit - sites  (Jmol Viewer)

(-) Description

Title :  STRUCTURE OF A E.COLI PORIN
 
Authors :  F. Korkmaz-Ozkan, S. Koster, W. Kuhlbrandt, W. Mantele, O. Yildiz
Date :  21 Mar 10  (Deposition) - 26 Jan 11  (Release) - 26 Jan 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.18
Chains :  Asym./Biol. Unit :  A
Keywords :  Transport Protein, Ion Transport (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  F. Korkmaz-Ozkan, S. Koster, W. Kuhlbrandt, W. Mantele, O. Yildiz
Correlation Between The Ompg Secondary Structure And Its Ph-Dependent Alterations Monitored By Ftir.
J. Mol. Biol. V. 401 56 2010
PubMed-ID: 20561532  |  Reference-DOI: 10.1016/J.JMB.2010.06.015

(-) Compounds

Molecule 1 - OUTER MEMBRANE PROTEIN G
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET26B
    Expression System StrainC43
    Expression System Taxid562
    FragmentPORIN
    MutationYES
    Organism ScientificESCHERICHIA COLI
    Organism Taxid83333
    StrainK-12
    SynonymOMPG

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 9)

Asymmetric/Biological Unit (1, 9)
No.NameCountTypeFull Name
1BOG9Ligand/IonB-OCTYLGLUCOSIDE

(-) Sites  (9, 9)

Asymmetric Unit (9, 9)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETYR A:14 , VAL A:55 , ASP A:56 , THR A:123 , ASP A:125 , TYR A:159BINDING SITE FOR RESIDUE BOG A1281
2AC2SOFTWAREGLY A:213 , LEU A:214 , ASN A:246 , TYR A:278BINDING SITE FOR RESIDUE BOG A1282
3AC3SOFTWAREASP A:67 , HIS A:97 , ASN A:108 , HOH A:2024BINDING SITE FOR RESIDUE BOG A1283
4AC4SOFTWAREASP A:117 , TRP A:118 , GLY A:130 , TRP A:131 , ARG A:168 , ASN A:170 , HOH A:2031 , HOH A:2032BINDING SITE FOR RESIDUE BOG A1284
5AC5SOFTWARETRP A:6 , GLU A:20 , VAL A:236 , GLY A:237 , TYR A:254 , HIS A:270 , BOG A:1288BINDING SITE FOR RESIDUE BOG A1285
6AC6SOFTWARELYS A:113 , TRP A:131 , SER A:133 , TYR A:135 , GLU A:152 , HOH A:2020BINDING SITE FOR RESIDUE BOG A1286
7AC7SOFTWARETYR A:22 , GLY A:23 , ASP A:82 , PHE A:83 , ASP A:265 , ASP A:267 , HOH A:2004BINDING SITE FOR RESIDUE BOG A1287
8AC8SOFTWARETRP A:6 , PHE A:8 , PHE A:256 , TRP A:258 , LYS A:268 , BOG A:1285BINDING SITE FOR RESIDUE BOG A1288
9AC9SOFTWARETRP A:43 , VAL A:73 , TYR A:75 , LEU A:87 , THR A:88 , GLY A:89BINDING SITE FOR RESIDUE BOG A1289

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2X9K)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2X9K)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2X9K)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2X9K)

(-) Exons   (0, 0)

(no "Exon" information available for 2X9K)

(-) 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:278
 aligned with OMPG_ECOLI | P76045 from UniProtKB/Swiss-Prot  Length:301

    Alignment length:278
                                    33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293        
           OMPG_ECOLI    24 RNDWHFNIGAMYEIENVEGYGEDMDGLAEPSVYFNAANGPWRIALAYYQEGPVDYSAGKRGTWFDRPELEVHYQFLENDDFSFGLTGGFRNYGYHYVDEPGKDTANMQRWKIAPDWDVKLTDDLRFNGWLSMYKFANDLNTTGYADTRVETETGLQYTFNETVALRVNYYLERGFNMDDSRNNGEFSTQEIRAYLPLTLGNHSVTPYTRIGLDRWSNWDWQDDIEREGHDFNRVGLFYGYDFQNGLSVSLEYAFEWQDHDEGDSDKFHYAGVGVNYSF 301
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains Porin_OmpG-2x9kA01 A:3-280                                                                                                                                                                                                                                                             Pfam domains
         Sec.struct. author ....eeeeeeeeeeeeeee..eeeeeeeeeeeeeeee...eeeeeeeeeeee..........eeeeeeeeeeeeeee...eeeeeeeeeeeeeee........eeeeeeeeeeeeeeee....eeeeeeeeeeeee.hhhhhh...eeeeeeeeeeee.....eeeeeeeeeeee..........eeeeeeeee.......eeeeeeeeeeeeeee..............eeeeeeeeeee....eeeeeeeeeeee........eeeeeeeeeeee. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2x9k A   3 RNDWHFNIGAMYEIENVEGYGEDMDGLAEPSVYFNAANGPWRIALAYYQEGPVDYSAGKRGTWFDRPELEVHYQFLENDDFSFGLTGGFRNYGYHYVDEPGKDTANMQRWKIAPDWDVKLTDDLRFNGWLSMYKFANDLNTTGYADTRVETETGLQYTFNETVALRVNYYLERGFNMDDSRNNGEFSTQEIRAYLPLTLGNHSVTPYTRIGLDRWSNWDWQDDIEREGADFNRVGLFYGYDFQNGLSVSLEYAFEWQDADEGDSDKFHYAGVGVNYSF 280
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272        

   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  (0, 0)

(no "SCOP Domain" information available for 2X9K)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2X9K)

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Clan: MBB (97)

(-) Gene Ontology  (13, 13)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (OMPG_ECOLI | P76045)
molecular function
    GO:0015481    maltose transporting porin activity    Catalysis of the transfer of maltose from one side of the membrane to the other. Maltose is the disaccharide 4-O-alpha-D-glucopyranosyl-D-glucopyranose, an intermediate in the enzymatic breakdown of glycogen and starch. This transporter is a porin so enables the energy independent passage of substances, sized less than 1000 Da, across a membrane. The transmembrane portions of porins consist exclusively of beta-strands which form a beta-barrel. They are found in the outer membranes of Gram-negative bacteria, mitochondria, plastids and possibly acid-fast Gram-positive bacteria.
    GO:0015478    oligosaccharide transporting porin activity    Catalysis of the transfer of oligosaccharide, sized less than 1000 Da, from one side of the membrane to the other. The transmembrane portions of porins consist exclusively of beta-strands which form a beta-barrel. They are found in the outer membranes of Gram-negative bacteria, mitochondria, plastids and possibly acid-fast Gram-positive bacteria.
    GO:0015288    porin activity    Catalysis of the transfer of substances, sized less than 1000 Da, from one side of the membrane to the other. The transmembrane portions of porins consist exclusively of beta-strands which form a beta-barrel. They are found in the outer membranes of Gram-negative bacteria, mitochondria, plastids and possibly acid-fast Gram-positive bacteria.
biological process
    GO:0034219    carbohydrate transmembrane transport    The process in which a carbohydrate is transported from one side of a membrane to the other by means of some agent such as a transporter or pore.
    GO:0006811    ion transport    The directed movement of charged atoms or small charged molecules into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0015768    maltose transport    The directed movement of maltose into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. Maltose is the disaccharide 4-O-alpha-D-glucopyranosyl-D-glucopyranose, an intermediate in the catabolism of glycogen and starch.
    GO:0015772    oligosaccharide transport    The directed movement of oligosaccharides into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. Oligosaccharides are molecules with between two and (about) 20 monosaccharide residues connected by glycosidic linkages.
    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:0009279    cell outer membrane    A lipid bilayer that forms the outermost membrane of the cell envelope; enriched in polysaccharide and protein; the outer leaflet of the membrane contains specific lipopolysaccharide structures.
    GO:0045203    integral component of cell outer membrane    The component of the cell outer membrane consisting of the gene products having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    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:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0046930    pore complex    Any small opening in a membrane that allows the passage of gases and/or liquids.

 Visualization

(-) Interactive Views

Asymmetric/Biological Unit
  Complete Structure
    Jena3D(integrated viewing of ligand, site, SAP, PROSITE, SCOP information)
    WebMol | AstexViewer[tm]@PDBe
(Java Applets, require no local installation except for Java; loading may be slow)
    STRAP
(Java WebStart application, automatic local installation, requires Java; full application with system access!)
    RasMol
(require local installation)
    Molscript (VRML)
(requires installation of a VRML viewer; select preferred view via VRML and generate a mono or stereo PDF format file)
 
  Ligands, Modified Residues, Ions
    BOG  [ RasMol | Jena3D ]  +environment [ RasMol | Jena3D ]
 
  Sites
    AC1  [ RasMol ]  +environment [ RasMol ]
    AC2  [ RasMol ]  +environment [ RasMol ]
    AC3  [ RasMol ]  +environment [ RasMol ]
    AC4  [ RasMol ]  +environment [ RasMol ]
    AC5  [ RasMol ]  +environment [ RasMol ]
    AC6  [ RasMol ]  +environment [ RasMol ]
    AC7  [ RasMol ]  +environment [ RasMol ]
    AC8  [ RasMol ]  +environment [ RasMol ]
    AC9  [ RasMol ]  +environment [ RasMol ]
 
  Cis Peptide Bonds
(no "Cis Peptide Bonds" information available for 2x9k)
 

(-) Still Images

Jmol
  protein: cartoon or spacefill or dots and stick; nucleic acid: cartoon and stick; ligands: spacefill; active site: stick
Molscript
  protein, nucleic acid: cartoon; ligands: spacefill; active site: ball and stick

 Databases and Analysis Tools

(-) Databases

Access by PDB/NDB ID
  2x9k
    Family and Domain InformationProDom | SYSTERS
    General Structural InformationGlycoscienceDB | MMDB | NDB | OCA | PDB | PDBe | PDBj | PDBsum | PDBWiki | PQS | PROTEOPEDIA
    Orientation in MembranesOPM
    Protein SurfaceSURFACE
    Secondary StructureDSSP (structure derived) | HSSP (homology derived)
    Structural GenomicsGeneCensus
    Structural NeighboursCE | VAST
    Structure ClassificationCATH | Dali | SCOP
    Validation and Original DataBMRB Data View | BMRB Restraints Grid | EDS | PROCHECK | RECOORD | WHAT_CHECK
 
Access by UniProt ID/Accession number
  OMPG_ECOLI | P76045
    Comparative Protein Structure ModelsModBase
    Genomic InformationEnsembl
    Protein-protein InteractionDIP
    Sequence, Family and Domain InformationInterPro | Pfam | SMART | UniProtKB/SwissProt
 
Access by Enzyme Classificator   (EC Number)
  (no 'Enzyme Classificator' available)
    General Enzyme InformationBRENDA | EC-PDB | Enzyme | IntEnz
    PathwayKEGG | MetaCyc
 
Access by Disease Identifier   (MIM ID)
  (no 'MIM ID' available)
    Disease InformationOMIM
 
Access by GenAge ID
  (no 'GenAge ID' available)
    Age Related InformationGenAge

(-) Analysis Tools

Access by PDB/NDB ID
    Domain InformationXDom
    Interatomic Contacts of Structural UnitsCSU
    Ligand-protein ContactsLPC
    Protein CavitiescastP
    Sequence and Secondary StructurePDBCartoon
    Structure AlignmentSTRAP(Java WebStart application, automatic local installation, requires Java; full application with system access!)
    Structure and Sequence BrowserSTING
 
Access by UniProt ID/Accession number
  OMPG_ECOLI | P76045
    Protein Disorder PredictionDisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)

 Related Entries

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

UniProtKB/Swiss-Prot
        OMPG_ECOLI | P760452f1c 2iwv 2iww 2jqy 2wvp 4ctd

(-) Related Entries Specified in the PDB File

2f1c CRYSTAL STRUCTURE OF THE MONOMERIC PORIN OMPG
2iwv STRUCTURE OF THE MONOMERIC OUTER MEMBRANE PORIN OMPG IN THE OPEN AND CLOSED CONFORMATION
2iww STRUCTURE OF THE MONOMERIC OUTER MEMBRANE PORIN OMPG IN THE OPEN AND CLOSED CONFORMATION
2wvp SYNTHETICALLY MODIFIED OMPG