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(-) Description

Title :  MOLECULAR INSIGHTS INTO CLINICALLY ISOLATED OMPC MUTANTS AND THEIR ROLE IN MULTI-DRUG RESISTANCE
 
Authors :  V. A. Bamford, J. H. Naismith
Date :  10 May 10  (Deposition) - 19 May 10  (Release) - 16 Nov 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.50
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (3x)
Keywords :  Transport Protein, Ion Transport, Porin, Antibiotic Resistance, Cell Outer Membrane, Beta Barrel, Membrane Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  H. Lou, M. Chen, S. S. Black, S. R. Bushell, M. Ceccarelli, T. Mach, K. Beis, A. S. Low, V. A. Bamford, I. R. Booth, H. Bayley, J. H. Naismith
Altered Antibiotic Transport In Ompc Mutants Isolated From A Series Of Clinical Strains Of Multi-Drug Resistant E. Coli.
Plos One V. 6 25825 2011
PubMed-ID: 22053181  |  Reference-DOI: 10.1371/JOURNAL.PONE.0025825

(-) Compounds

Molecule 1 - OUTER MEMBRANE PROTEIN C
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 562
    Other Details: O6 UROPATHOGENIC STRAIN
    Strain: O6
    Synonym: PORIN OMPC, OUTER MEMBRANE PROTEIN 1B

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit : A
Biological Unit 1 (3x): A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 3)

Asymmetric Unit (2, 3)
No.NameCountTypeFull Name
1D102Ligand/IonDECANE
2HEX1Ligand/IonHEXANE
Biological Unit 1 (2, 9)
No.NameCountTypeFull Name
1D106Ligand/IonDECANE
2HEX3Ligand/IonHEXANE

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREVAL A:346BINDING SITE FOR RESIDUE HEX A1355
2AC2SOFTWAREPHE A:23 , TYR A:90 , TYR A:149 , LEU A:348BINDING SITE FOR RESIDUE D10 A1356
3AC3SOFTWARETYR A:269 , VAL A:279 , VAL A:306BINDING SITE FOR RESIDUE D10 A1357

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2XE1)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2XE1)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2XE1)

(-) PROSITE Motifs  (1, 1)

Asymmetric Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1GRAM_NEG_PORINPS00576 General diffusion Gram-negative porins signature.OMPC_ECOL6327-343  1A:306-322
Biological Unit 1 (1, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1GRAM_NEG_PORINPS00576 General diffusion Gram-negative porins signature.OMPC_ECOL6327-343  3A:306-322

(-) Exons   (0, 0)

(no "Exon" information available for 2XE1)

(-) 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:354
 aligned with OMPC_ECOL6 | Q8CVW1 from UniProtKB/Swiss-Prot  Length:375

    Alignment length:354
                                    31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371    
           OMPC_ECOL6    22 AEVYNKDGNKLDLYGKVDGLHYFSDDKSVDGDQTYMRLGFKGETQVTDQLTGYGQWEYQIQGNAPESENNSWTRVAFAGLKFQDIGSFDYGRNYGVVYDVTSWTDVLPEFGGDTYGSDNFMQQRGNGFATYRNTDFFGLVDGLNFAVQYQGQNGSVSGENDPDFTGHGITNNGRKALRQNGDGVGGSITYDYEGFGVGAAVSSSKRTWDQNNTGLIGTGDRAETYTGGLKYDANNIYLAAQYTQTYNATRVGSLGWANKAQNFEAVAQYQFDFGLRPSVAYLQSKGKNLGVVAGRNYDDEDILKYVDVGATYYFNKNMSTYVDYKINLLDDNQFTRAAGINTDDIVALGLVYQF 375
               SCOP domains d2xe1a_ A: automated matches                                                                                                                                                                                                                                                                                                                                       SCOP domains
               CATH domains 2xe1A00 A:1-354 Porin                                                                                                                                                                                                                                                                                                                                              CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .eeeee..eeeeeeeeeeeeeeee..........eeeeeeeeeee....eeeeeeeeeeee.........eeeeeeeeeeee...eeeeeeeee..hhhhhhhhh..................eeeeeeeeeehhhhhh...eeeeeeee........................hhhhh...eeeeeeeeee..eeeeeeeeeee.hhhhhhh.......eeeeeeeeeeeee..eeeeeeeeeee...ee...ee..eeeeeeeeeee.....eeeeeeeeeeeee..eee..eee..eeeeeeeeeeeeeeee..eeeeeeeeee....hhhhhhhh.....eeeeeeeeee Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------GRAM_NEG_PORIN   -------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 2xe1 A   1 AEVYNKDGNKLDLYGKVDGLHYFSDDKSVDGDQTYMRLGFKGETQVTDQLTGYGQWEYQIQGNAPESENNSWTRVAFAGLKFQDIGSFDYGRNYGVVYDVTSWTDVLPEFGGDTYGSDNFMQQRGNGFATYRNTDFFGLVDGLNFAVQYQGQNGSVSGENDPDFTGHGITNNGRKALRQNGDGVGGSITYDYEGFGVGAAVSSSKRTWDQNNTGLIGTGDRAETYTGGLKYDANNIYLAAQYTQTYNATRVGSLGWANKAQNFEAVAQYQFDFGLRPSVAYLQSKGKNLGVVAGRNYDDEDILKYVDVGATYYFNKNMSTYVDYKINLLDDNQFTRAAGINTDDIVALGLVYQF 354
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350
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  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
(-)
Class: Membrane and cell surface proteins and peptides (2046)

(-) CATH Domains  (1, 1)

Asymmetric Unit
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2XE1)

(-) Gene Ontology  (8, 8)

Asymmetric Unit(hide GO term definitions)
Chain A   (OMPC_ECOL6 | Q8CVW1)
molecular function
    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: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:0055085    transmembrane transport    The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other
    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: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.

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(-) Related Entries Specified in the PDB File

2xe2 MOLECULAR INSIGHTS INTO CLINICALLY ISOLATED OMPC MUTANTS AND THEIR ROLE IN MULTI-DRUG RESISTANCE
2xe3 OMPC28