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(-) Description

Title :  CRYSTAL SRTUCTURE OF THE BINARY COMPLEX BETWEEN FERREDOXIN: THIOREDOXIN REDUCTASE AND THIOREDOXIN F
 
Authors :  S. Dai
Date :  09 May 07  (Deposition) - 10 Jul 07  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.65
Chains :  Asym. Unit :  A,B,C
Biol. Unit 1:  A,B,C  (1x)
Biol. Unit 2:  A (1x),B (1x),C (1x)
Keywords :  Thioredoxin, Protein-Protein Complex, Redox, Iron-Sulfur, Electron Transport (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  S. Dai, R. Friemann, D. A. Glauser, F. Bourquin, W. Manieri, P. Schurmann, H. Eklund
Structural Snapshots Along The Reaction Pathway Of Ferredoxin-Thioredoxin Reductase.
Nature V. 448 92 2007
PubMed-ID: 17611542  |  Reference-DOI: 10.1038/NATURE05937
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - FERREDOXIN-THIOREDOXIN REDUCTASE, CATALYTIC CHAIN
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI BL21
    Expression System PlasmidPET-3C
    Expression System StrainBL21
    Expression System Taxid511693
    Expression System Vector TypePLASMID
    GeneFTRC
    Organism ScientificSYNECHOCYSTIS SP.
    Organism Taxid1143
 
Molecule 2 - FERREDOXIN-THIOREDOXIN REDUCTASE, VARIABLE CHAIN
    ChainsB
    EngineeredYES
    Expression SystemESCHERICHIA COLI BL21
    Expression System PlasmidPET-3C
    Expression System StrainBL21
    Expression System Taxid511693
    Expression System Vector TypePLASMID
    GeneFTRV
    Organism ScientificSYNECHOCYSTIS SP.
    Organism Taxid1143
    SynonymFTR-V, FERREDOXIN- THIOREDOXIN REDUCTASE SUBUNIT A
 
Molecule 3 - THIOREDOXIN F-TYPE, CHLOROPLAST
    ChainsC
    EngineeredYES
    Expression SystemESCHERICHIA COLI BL21
    Expression System PlasmidPET-3C
    Expression System StrainBL21
    Expression System Taxid511693
    Expression System Vector TypePLASMID
    MutationYES
    Organism CommonSPINACH
    Organism ScientificSPINACIA OLERACEA
    Organism Taxid3562
    SynonymTRX-F

 Structural Features

(-) Chains, Units

  123
Asymmetric Unit ABC
Biological Unit 1 (1x)ABC
Biological Unit 2 (1x)A (1x)B (1x)C (1x)

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 7)

Asymmetric Unit (2, 7)
No.NameCountTypeFull Name
1SF41Ligand/IonIRON/SULFUR CLUSTER
2SO46Ligand/IonSULFATE ION
Biological Unit 1 (2, 7)
No.NameCountTypeFull Name
1SF41Ligand/IonIRON/SULFUR CLUSTER
2SO46Ligand/IonSULFATE ION
Biological Unit 2 (0, 0)
No.NameCountTypeFull Name
1SF4-1Ligand/IonIRON/SULFUR CLUSTER
2SO4-1Ligand/IonSULFATE ION

(-) Sites  (7, 7)

Asymmetric Unit (7, 7)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS A:46 , LYS A:63 , HOH A:413 , HOH A:417 , HOH A:418 , HOH A:460 , HOH A:465 , HOH A:509 , HOH A:510BINDING SITE FOR RESIDUE SO4 A 301
2AC2SOFTWAREARG A:58 , ASN B:50 , ARG C:87 , VAL C:88 , HOH C:344BINDING SITE FOR RESIDUE SO4 C 302
3AC3SOFTWAREARG A:45 , HOH A:515 , GLN C:44 , TRP C:45BINDING SITE FOR RESIDUE SO4 A 303
4AC4SOFTWAREGLU A:41 , ARG A:45 , LYS A:113 , HOH A:519 , LYS B:56 , ARG B:60 , LYS B:62 , HOH B:129BINDING SITE FOR RESIDUE SO4 A 304
5AC5SOFTWARELYS A:15 , ASP A:96 , ILE A:104 , PRO A:105 , MET A:106BINDING SITE FOR RESIDUE SO4 A 305
6AC6SOFTWAREALA C:107 , TYR C:109 , ASP C:110 , HOH C:351BINDING SITE FOR RESIDUE SO4 C 306
7AC7SOFTWARECYS A:55 , CYS A:74 , CYS A:76 , MET A:79 , CYS A:85 , HIS A:86 , CYS A:87BINDING SITE FOR RESIDUE SF4 A 400

(-) SS Bonds  (1, 1)

Asymmetric Unit
No.Residues
1A:57 -A:87

(-) Cis Peptide Bonds  (2, 2)

Asymmetric Unit
No.Residues
1Cys A:74 -Pro A:75
2Val C:89 -Pro C:90

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2PU9)

(-) PROSITE Motifs  (1, 1)

Asymmetric Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1THIOREDOXIN_1PS00194 Thioredoxin family active site.TRXF_SPIOL106-124  1C:38-56
Biological Unit 1 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1THIOREDOXIN_1PS00194 Thioredoxin family active site.TRXF_SPIOL106-124  1C:38-56
Biological Unit 2 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1THIOREDOXIN_1PS00194 Thioredoxin family active site.TRXF_SPIOL106-124  1C:38-56

(-) Exons   (0, 0)

(no "Exon" information available for 2PU9)

(-) 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:110
 aligned with FTRC_SYNY3 | Q55389 from UniProtKB/Swiss-Prot  Length:118

    Alignment length:110
                                    18        28        38        48        58        68        78        88        98       108       118
           FTRC_SYNY3     9 NKTLAAMKNFAEQYAKRTDTYFCSDLSVTAVVIEGLARHKEELGSPLCPCRHYEDKEAEVKNTFWNCPCVPMRERKECHCMLFLTPDNDFAGDAQDIPMETLEEVKASMA 118
               SCOP domains d2pu9a_ A: Ferredoxin thioredoxin reductase (FTR), catalytic beta chain                                        SCOP domains
               CATH domains 2pu9A00 A:8-117 Ferredoxin Thioredoxin Reductase                                                               CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhh..........hhhhhhhhh.....hhhhhhhh.....................hhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------- Transcript
                 2pu9 A   8 NKTLAAMKNFAEQYAKRTDTYFCSDLSVTAVVIEGLARHKEELGSPLCPCRHYEDKEAEVKNTFWNCPCVPMRERKECHCMLFLTPDNDFAGDAQDIPMETLEEVKASMA 117
                                    17        27        37        47        57        67        77        87        97       107       117

Chain B from PDB  Type:PROTEIN  Length:74
 aligned with FTRV_SYNY3 | Q55781 from UniProtKB/Swiss-Prot  Length:75

    Alignment length:74
                                    10        20        30        40        50        60        70    
           FTRV_SYNY3     1 MNVGDRVRVTSSVVVYHHPEHKKTAFDLQGMEGEVAAVLTEWQGRPISANLPVLVKFEQRFKAHFRPDEVTLIE  74
               SCOP domains d2pu9b_ B: Ferredoxin thioredoxin reductase (FTR), alpha (variable) chain  SCOP domains
               CATH domains 2pu9B00 B:1-74  [code=2.30.30.50, no name defined]                         CATH domains
               Pfam domains --FeThRed_A-2pu9B01 B:3-69                                           ----- Pfam domains
         Sec.struct. author .....eeee....ee..........ee....eeeeeee..ee..ee......eeee.hhh.eeeehhh.eee.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------- Transcript
                 2pu9 B   1 MNVGDRVRVTSSVVVYHHPEHKKTAFDLQGMEGEVAAVLTEWQGRPISANLPVLVKFEQRFKAHFRPDEVTLIE  74
                                    10        20        30        40        50        60        70    

Chain C from PDB  Type:PROTEIN  Length:111
 aligned with TRXF_SPIOL | P09856 from UniProtKB/Swiss-Prot  Length:190

    Alignment length:111
                                    88        98       108       118       128       138       148       158       168       178       188 
           TRXF_SPIOL    79 EAIVGKVTEVNKDTFWPIVKAAGDKPVVLDMFTQWCGPCKAMAPKYEKLAEEYLDVIFLKLDCNQENKTLAKELGIRVVPTFKILKENSVVGEVTGAKYDKLLEAIQAARS 189
               SCOP domains d2pu9c_ C: automated matches                                                                                    SCOP domains
               CATH domains 2pu9C00 C:11-121 Glutaredoxin                                                                                   CATH domains
               Pfam domains -----Thioredoxin-2pu9C01 C:16-119                                                                            -- Pfam domains
         Sec.struct. author ......eeee...hhhhhhh......eeeeee...hhhhhhhhhhhhhhhhhh...eeeeee....hhhhhhhhh.....eeeee....eeeeee..hhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------THIOREDOXIN_1      ----------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------- Transcript
                 2pu9 C  11 EAIVGKVTEVNKDTFWPIVKAAGDKPVVLDMFTQWCGPSKAMAPKYEKLAEEYLDVIFLKLDCNQENKTLAKELGIRVVPTFKILKENSVVGEVTGAKYDKLLEAIQAARS 121
                                    20        30        40        50        60        70        80        90       100       110       120 

   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  (3, 3)

Asymmetric Unit

(-) CATH Domains  (3, 3)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (2, 2)

Asymmetric Unit

(-) Gene Ontology  (17, 24)

Asymmetric Unit(hide GO term definitions)
Chain A   (FTRC_SYNY3 | Q55389)
molecular function
    GO:0051539    4 iron, 4 sulfur cluster binding    Interacting selectively and non-covalently with a 4 iron, 4 sulfur (4Fe-4S) cluster; this cluster consists of four iron atoms, with the inorganic sulfur atoms found between the irons and acting as bridging ligands.
    GO:0009055    electron carrier activity    Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
    GO:0030385    ferredoxin:thioredoxin reductase activity    Catalysis of the two-electron reduction of the disulfide of thioredoxins with electrons from ferredoxin involving a 4Fe-4S cluster and an adjacent active-site disulfide.
    GO:0051536    iron-sulfur cluster binding    Interacting selectively and non-covalently with an iron-sulfur cluster, a combination of iron and sulfur atoms.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
    GO:0016730    oxidoreductase activity, acting on iron-sulfur proteins as donors    Catalysis of an oxidation-reduction (redox) reaction in which an iron-sulfur protein acts as a hydrogen or electron donor and reduces a hydrogen or electron acceptor.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
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:0015979    photosynthesis    The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide (CO2) using energy obtained from light rather than from the oxidation of chemical compounds.

Chain B   (FTRV_SYNY3 | Q55781)
molecular function
    GO:0051539    4 iron, 4 sulfur cluster binding    Interacting selectively and non-covalently with a 4 iron, 4 sulfur (4Fe-4S) cluster; this cluster consists of four iron atoms, with the inorganic sulfur atoms found between the irons and acting as bridging ligands.
    GO:0016992    lipoate synthase activity    Catalysis of the reaction: protein N6-(octanoyl)lysine + 2 sulfur + 2 S-adenosyl-L-methionine = protein N6-(lipoyl)lysine + 2 L-methionine + 2 5'-deoxyadenosyl.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
biological process
    GO:0009107    lipoate biosynthetic process    The chemical reactions and pathways resulting in the formation of lipoate, 1,2-dithiolane-3-pentanoate, the anion derived from lipoic acid.
    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:0015979    photosynthesis    The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide (CO2) using energy obtained from light rather than from the oxidation of chemical compounds.

Chain C   (TRXF_SPIOL | P09856)
molecular function
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    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: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.
cellular component
    GO:0009507    chloroplast    A chlorophyll-containing plastid with thylakoids organized into grana and frets, or stroma thylakoids, and embedded in a stroma.
    GO:0009536    plastid    Any member of a family of organelles found in the cytoplasm of plants and some protists, which are membrane-bounded and contain DNA. Plant plastids develop from a common type, the proplastid.

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 Related Entries

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

UniProtKB/Swiss-Prot
        FTRC_SYNY3 | Q553891dj7 2puk 2puo 2pvd 2pvg 2pvo
        FTRV_SYNY3 | Q557811dj7 2puk 2puo 2pvd 2pvg 2pvo
        TRXF_SPIOL | P098561f9m 1faa 2pvo

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 2PU9)