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(-) Description

Title :  STRUCTURAL AND FUNCTIONAL STUDIES OF TCPG, THE VIBRIO CHOLERAE DSBA DISULFIDE-FORMING PROTEIN REQUIRED FOR PILUS AND CHOLERA TOXIN PRODUCTION
 
Authors :  P. M. Walden, J. L. Martin
Date :  23 Feb 12  (Deposition) - 31 Oct 12  (Release) - 31 Oct 12  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.20
Chains :  Asym./Biol. Unit :  A
Keywords :  Cholera, Pilus Assembly, Oxidoreductase, Thioredoxin Fold, Dsba-Like, Disulfide Bond, Dsbb (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  P. M. Walden, B. Heras, K. -E. Chen, M. A. Halili, K. Rimmer, P. Sharma, M. J. Scanlon, J. L. Martin
The 1. 2 A Resolution Crystal Structure Of Tcpg, The Vibrio Cholerae Dsba Disulfide-Forming Protein Required For Pilus And Cholera-Toxin Production
Acta Crystallogr. , Sect. D V. 68 1290 2012
PubMed-ID: 22993083  |  Reference-DOI: 10.1107/S0907444912026388

(-) Compounds

Molecule 1
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET-21A
    Expression System Strain: BL21(DE3)PLYSS
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Fragment: UNP RESIDUES 19-200
    Gene: TPCG
    Mutation: YES
    Organism Scientific: VIBRIO CHOLERAE
    Organism Taxid: 243277
    Strain: SEROTYPE O1 (ATCC 39315 / EL TOR INABA N16961)

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (2, 3)
No.NameCountTypeFull Name
1DMS2Ligand/IonDIMETHYL SULFOXIDE
2SO41Ligand/IonSULFATE ION

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLU A:37 , ASP A:83 , VAL A:86 , HOH A:541 , HOH A:558BINDING SITE FOR RESIDUE DMS A 201
2AC2SOFTWARESER A:17 , SER A:18 , SER A:19 , PRO A:20 , ASN A:154 , LEU A:178 , LEU A:180BINDING SITE FOR RESIDUE DMS A 202
3AC3SOFTWARESER A:-2 , ASN A:-1 , ILE A:115 , ASP A:116 , LYS A:119BINDING SITE FOR RESIDUE SO4 A 203

(-) SS Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1A:30 -A:33

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Val A:148 -Pro A:149

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 4DVC)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 4DVC)

(-) Exons   (0, 0)

(no "Exon" information available for 4DVC)

(-) 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:184
 aligned with DSBA_VIBCH | P32557 from UniProtKB/Swiss-Prot  Length:200

    Alignment length:184
                                    26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196    
           DSBA_VIBCH    17 AYAAQFKEGEHYQVLKTPASSSPVVNEFFSFYCPHCNTFEPIIAQLKQQLPEGAKFQKNHVSFMGGNMGQAMSKAYATMIALEVEDKMVPVMFNRIHTLRKPPKDEQELRQIFLDEGIDAAKFDAAYNGFAVDSMVRRFDKQFQDSGLTGVPAVVVNNRYLVQGQSVKSLDEYFDLVNYLLTLK 200
               SCOP domains d4dvca_ A: automated matches                                                                                                                                                             SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...........eee.........eeeeee...hhhhhhhhhhhhhhhhh.....eeeeee....hhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhh......hhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....eeee...eee.hhhh.hhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4dvc A  -2 SNAAQFKEGEHYQVLKTPASSSPVVSEFFSFYCPHCNTFEPIIAQLKQQLPEGAKFQKNHVSFMGGNMGQAMSKAYATMIALEVEDKMVPVMFNRIHTLRKPPKDEQELRQIFLDEGIDAAKFDAAYNGFAVDSMVHRFDKQFQDSGLTGVPAVVVNNRYLVQGQSAKSLDEYFDLVNYLLTLK 181
                                     7        17        27        37        47        57        67        77        87        97       107       117       127       137       147       157       167       177
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  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/Biological Unit
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 4DVC)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 4DVC)

(-) Gene Ontology  (6, 6)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (DSBA_VIBCH | P32557)
molecular function
    GO:0003756    protein disulfide isomerase activity    Catalysis of the rearrangement of both intrachain and interchain disulfide bonds in proteins.
    GO:0015035    protein disulfide oxidoreductase activity    Catalysis of the reaction: a protein with reduced sulfide groups = a protein with oxidized disulfide bonds.
biological process
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0009405    pathogenesis    The set of specific processes that generate the ability of an organism to induce an abnormal, generally detrimental state in another organism.
    GO:0006457    protein folding    The process of assisting in the covalent and noncovalent assembly of single chain polypeptides or multisubunit complexes into the correct tertiary structure.
cellular component
    GO:0042597    periplasmic space    The region between the inner (cytoplasmic) and outer membrane (Gram-negative Bacteria) or cytoplasmic membrane and cell wall (Fungi and Gram-positive Bacteria).

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 Related Entries

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

UniProtKB/Swiss-Prot
        DSBA_VIBCH | P32557: 1bed 2ijy

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