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(-) Description

Title :  CRYSTAL STRUCTURE OF OXIDIZED SCHISTOSOMA MANSONI THIOREDOXIN PRE-PROTEIN AT 1.6 ANGSTROM
 
Authors :  G. Boumis, A. E. Miele, D. Dimastrogiovanni, F. Angelucci, A. Bellelli
Date :  15 Apr 10  (Deposition) - 11 Aug 10  (Release) - 25 Apr 12  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.56
Chains :  Asym./Biol. Unit :  A
Keywords :  Oxidoreductase, Protein Disulfide Reductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  G. Boumis, F. Angelucci, A. Bellelli, M. Brunori, D. Dimastrogiovanni, A. E. Miele
Structural And Functional Characterization Of Schistosoma Mansoni Thioredoxin.
Protein Sci. V. 20 1069 2011
PubMed-ID: 21465612  |  Reference-DOI: 10.1002/PRO.634

(-) Compounds

Molecule 1 - THIOREDOXINN
    Chains: A
    EC Number: 1.8.1.8
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PGEX-4T1
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Mutation: YES
    Organism Common: BLOOD FLUKE
    Organism Scientific: SCHISTOSOMA MANSONI
    Organism Taxid: 6183
    Other Details: CDNA FROM ADULT SCHISTOSOMA MANSONI

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (2, 2)
No.NameCountTypeFull Name
1CA1Ligand/IonCALCIUM ION
2ZN1Ligand/IonZINC ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLU A:46 , GLU A:49 , GLU A:65BINDING SITE FOR RESIDUE CA A1107
2AC2SOFTWAREGLU A:3 , HIS A:20 , HOH A:2033 , HOH A:2106 , HOH A:2107BINDING SITE FOR RESIDUE ZN A1108

(-) SS Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1A:34 -A:37

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Met A:75 -Pro A:76

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2XC2)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2XC2)

(-) Exons   (0, 0)

(no "Exon" information available for 2XC2)

(-) 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:110
 aligned with Q8T9N5_SCHMA | Q8T9N5 from UniProtKB/TrEMBL  Length:106

    Alignment length:110
                                1                                                                                                         
                                |    6        16        26        36        46        56        66        76        86        96       106
         Q8T9N5_SCHMA     - ----MSKLIELKQDGDLESLLEQHKNKLVVVDFFATWCGPCKTIAPLFKELSEKYDAIFVKVDVDKLEETARKYNISAMPTFIAIKNGEKVGDVVGASIAKVEDMIKKFI 106
               SCOP domains d2xc2a_ A: automated matches                                                                                   SCOP domains
               CATH domains 2xc2A00 A:-3-106 Glutaredoxin                                                                                  CATH domains
               Pfam domains --------Thioredoxin-2xc2A01 A:5-105                                                                          - Pfam domains
         Sec.struct. author ......eeee....hhhhhhhhhh....eeeeee...hhhhhhhhhhhhhhhh....eeeeee...hhhhhhhh......eeeeee..eeeeeee..hhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------- Transcript
                 2xc2 A  -3 QLVIMSELIELKQDGDLESLLEQHKNKLVVVDFFATWCGPCKTIAPLFKELSEKYDAIFVKVDVDKLEETARKYNISAMPTFIAIKNGEKVGDVVGASIAKVEDMIKKFI 106
                                     6        16        26        36        46        56        66        76        86        96       106
   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/Biological Unit
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Clan: Thioredoxin (367)

(-) Gene Ontology  (10, 10)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (Q8T9N5_SCHMA | Q8T9N5)
molecular function
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016671    oxidoreductase activity, acting on a sulfur group of donors, disulfide as acceptor    Catalysis of an oxidation-reduction (redox) reaction in which a sulfur-containing group acts as a hydrogen or electron donor and reduces disulfide.
    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:0045454    cell redox homeostasis    Any process that maintains the redox environment of a cell or compartment within a cell.
    GO:0034599    cellular response to oxidative stress    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of oxidative stress, a state often resulting from exposure to high levels of reactive oxygen species, e.g. superoxide anions, hydrogen peroxide (H2O2), and hydroxyl radicals.
    GO:0006662    glycerol ether metabolic process    The chemical reactions and pathways involving glycerol ethers, any anhydride formed between two organic hydroxy compounds, one of which is glycerol.
    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: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.
    GO:0000103    sulfate assimilation    The pathways by which inorganic sulfate is processed and incorporated into sulfated compounds.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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 Related Entries

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

UniProtKB/TrEMBL
        Q8T9N5_SCHMA | Q8T9N5: 2xbi 2xbq

(-) Related Entries Specified in the PDB File

2xbi CRYSTAL STRUCTURE OF SCHISTOSOMA MANSONI THIOREDOXIN AT 1.6 ANGSTROM
2xbq CRYSTAL STRUCTURE OF REDUCED SCHISTOSOMA MANSONI THIOREDOXIN PRE-PROTEIN AT 1.7 ANGSTROM