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(-) Description

Title :  E1M, A104W MUTANT OF RH. BLASTICA PORIN
 
Authors :  L. Maveyraud, B. Schmid, G. E. Schulz
Date :  12 Jun 98  (Deposition) - 12 Aug 98  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.90
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (3x)
Keywords :  Integral Membrane Protein, Porin, Pore Eyelet Mutant, Membrane Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  B. Schmid, L. Maveyraud, M. Kromer, G. E. Schulz
Porin Mutants With New Channel Properties.
Protein Sci. V. 7 1603 1998
PubMed-ID: 9684893
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PORIN
    Cellular Location: OUTER MEMBRANE
    Cell Line: BL21
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Cellular Location: INCLUSION BODIES
    Expression System Plasmid: PET-3B
    Expression System Strain: BL21 (DE3) PLYSS
    Expression System Taxid: 562
    Mutation: YES
    Organism Scientific: RHODOBACTER BLASTICUS
    Organism Taxid: 1075

 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, 4)

Asymmetric Unit (2, 4)
No.NameCountTypeFull Name
1C8E3Ligand/Ion(HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE
2MG1Ligand/IonMAGNESIUM ION
Biological Unit 1 (1, 9)
No.NameCountTypeFull Name
1C8E9Ligand/Ion(HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE
2MG-1Ligand/IonMAGNESIUM ION

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWARESER A:28 , ASP A:57 , HOH A:329 , HOH A:354 , HOH A:408BINDING SITE FOR RESIDUE MG A 290
2AC2SOFTWAREASP A:59 , ALA A:60 , PHE A:61 , TYR A:121 , ALA A:123 , HOH A:360BINDING SITE FOR RESIDUE C8E A 291
3AC3SOFTWARETHR A:25 , VAL A:237 , ILE A:255 , VAL A:271 , VAL A:283BINDING SITE FOR RESIDUE C8E A 292
4AC4SOFTWARETYR A:148BINDING SITE FOR RESIDUE C8E A 293

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 3PRN)

(-) 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:289
 aligned with PORI_RHOBL | P39767 from UniProtKB/Swiss-Prot  Length:289

    Alignment length:289
                                    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         
           PORI_RHOBL     1 EISLNGYGRFGLQYVEDRGVGLEDTIISSRLRINIVGTTETDQGVTFGAKLRMQWDDGDAFAGTAGNAAQFWTSYNGVTVSVGNVDTAFDSVALTYDSEMGYEASSFGDAQSSFFAYNSKYDASGALDNYNGIAVTYSISGVNLYLSYVDPDQTVDSSLVTEEFGIAADWSNDMISLAAAYTTDAGGIVDNDIAFVGAAYKFNDAGTVGLNWYDNGLSTAGDQVTLYGNYAFGATTVRAYVSDIDRAGADTAYGIGADYQFAEGVKVSGSVQSGFANETVADVGVRFDF 289
               SCOP domains d3prna_ A: Porin                                                                                                                                                                                                                                                                                  SCOP domains
               CATH domains 3prnA00 A:1-289 Porin                                                                                                                                                                                                                                                                             CATH domains
               Pfam domains -Porin_4-3prnA01 A:2-279                                                                                                                                                                                                                                                               ---------- Pfam domains
         Sec.struct. author .eeeeeeeeeeeeee.........eeeeeeeeeeeeeee......eeeeeeeeeee...hhh.......eeeeee..eeeeee....hhhh.......................................eeeeeeee...eeeeeeeee......hhh...eeeeeeeee...eeeeeeeee.hhh.....eeeeeeee.....eeeeeeeee........eeeeeeeeee..eeeeeeeeee.......eeeeeeeeeee..eeeeeeeee.....eeeeeeeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3prn A   1 MISLNGYGRFGLQYVEDRGVGLEDTIISSRLRINIVGTTETDQGVTFGAKLRMQWDDGDAFAGTAGNAAQFWTSYNGVTVSVGNVDTAFDSVALTYDSEMGYEWSSFGDAQSSFFAYNSKYDASGALDNYNGIAVTYSISGVNLYLSYVDPDQTVDSSLVTEEFGIAADWSNDMISLAAAYTTDAGGIVDNDIAFVGAAYKFNDAGTVGLNWYDNGLSTAGDQVTLYGNYAFGATTVRAYVSDIDRAGADTAYGIGADYQFAEGVKVSGSVQSGFANETVADVGVRFDF 289
                                    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
   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
(-)
Class: Membrane and cell surface proteins and peptides (2046)

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (1, 1)

Asymmetric Unit
(-)
Clan: MBB (97)

(-) Gene Ontology  (8, 8)

Asymmetric Unit(hide GO term definitions)
Chain A   (PORI_RHOBL | P39767)
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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  3prn
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 Related Entries

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

UniProtKB/Swiss-Prot
        PORI_RHOBL | P39767: 1bh3 1h6s 1prn 2prn 5prn 6prn 7prn 8prn

(-) Related Entries Specified in the PDB File

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