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(-) Description

Title :  STRUCTURE OF THE REDUCED FORM OF CYTOCHROME BA3 OXIDASE FROM THERMUS THERMOPHILUS
 
Authors :  B Liu, Y. Chen, T. Doukov, S. M. Soltis, D. Stout, J. A. Fee
Date :  11 Sep 08  (Deposition) - 21 Apr 09  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.90
Chains :  Asym. Unit :  A,B,C
Biol. Unit 1:  A,B,C  (1x)
Biol. Unit 2:  A  (1x)
Biol. Unit 3:  B  (1x)
Biol. Unit 4:  C  (1x)
Keywords :  Cytochrome Ba3 Oxidase, Heme, Integral Membrane Protein, Copper, Electron Transport, Hydrogen Ion Transport, Ion Transport, Iron, Metal-Binding, Oxidoreductase, Respiratory Chain, Transmembrane, Transport, Formylation, Cell Membrane, Membrane (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  B. Liu, Y. Chen, T. Doukov, S. M. Soltis, C. D. Stout, J. A. Fee
Combined Microspectrophotometric And Crystallographic Examination Of Chemically Reduced And X-Ray Radiation-Reduced Forms Of Cytochrome Ba3 Oxidase From Thermus Thermophilus: Structure Of The Reduced Form Of The Enzyme.
Biochemistry V. 48 820 2009
PubMed-ID: 19140675  |  Reference-DOI: 10.1021/BI801759A
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CYTOCHROME C OXIDASE SUBUNIT 1
    ChainsA
    EC Number1.9.3.1
    EngineeredYES
    Expression SystemTHERMUS THERMOPHILUS
    Expression System PlasmidPMK18
    Expression System StrainHB8
    Expression System Taxid274
    Expression System Vector TypePLASMID
    FragmentUNP RESIDUES 2-562
    GeneCBAA, TTHA1135
    MutationYES
    Organism ScientificTHERMUS THERMOPHILUS
    Organism Taxid300852
    StrainHB8
    SynonymCYTOCHROME C OXIDASE POLYPEPTIDE I, CYTOCHROME C BA(3) SUBUNIT I, CYTOCHROME CBA3 SUBUNIT 1
 
Molecule 2 - CYTOCHROME C OXIDASE SUBUNIT 2
    ChainsB
    EC Number1.9.3.1
    EngineeredYES
    Expression SystemTHERMUS THERMOPHILUS
    Expression System PlasmidPMK18
    Expression System StrainHB8
    Expression System Taxid274
    Expression System Vector TypePLASMID
    FragmentUNP RESIDUES 3-168
    GeneCBAB, CTAC, TTHA1134
    MutationYES
    Organism ScientificTHERMUS THERMOPHILUS
    Organism Taxid300852
    StrainHB8
    SynonymCYTOCHROME C OXIDASE POLYPEPTIDE II, CYTOCHROME C BA(3) SUBUNIT II, CYTOCHROME CBA3 SUBUNIT 2
 
Molecule 3 - CYTOCHROME C OXIDASE POLYPEPTIDE 2A
    ChainsC
    EC Number1.9.3.1
    EngineeredYES
    Expression SystemTHERMUS THERMOPHILUS
    Expression System PlasmidPMK18
    Expression System StrainHB8
    Expression System Taxid274
    Expression System Vector TypePLASMID
    FragmentUNP RESIDUES 2-34
    GeneCBAD, TTHA1133
    Organism ScientificTHERMUS THERMOPHILUS
    Organism Taxid300852
    StrainHB8
    SynonymCYTOCHROME C OXIDASE POLYPEPTIDE IIA, CYTOCHROME C BA(3) SUBUNIT IIA, CYTOCHROME CBA3 SUBUNIT 2A

 Structural Features

(-) Chains, Units

  123
Asymmetric Unit ABC
Biological Unit 1 (1x)ABC
Biological Unit 2 (1x)A  
Biological Unit 3 (1x) B 
Biological Unit 4 (1x)  C

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (5, 5)

Asymmetric Unit (5, 5)
No.NameCountTypeFull Name
1BNG1Ligand/IonB-NONYLGLUCOSIDE
2CU11Ligand/IonCOPPER (I) ION
3CUA1Ligand/IonDINUCLEAR COPPER ION
4HAS1Ligand/IonHEME-AS
5HEM1Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
Biological Unit 1 (5, 5)
No.NameCountTypeFull Name
1BNG1Ligand/IonB-NONYLGLUCOSIDE
2CU11Ligand/IonCOPPER (I) ION
3CUA1Ligand/IonDINUCLEAR COPPER ION
4HAS1Ligand/IonHEME-AS
5HEM1Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
Biological Unit 2 (3, 3)
No.NameCountTypeFull Name
1BNG-1Ligand/IonB-NONYLGLUCOSIDE
2CU11Ligand/IonCOPPER (I) ION
3CUA-1Ligand/IonDINUCLEAR COPPER ION
4HAS1Ligand/IonHEME-AS
5HEM1Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
Biological Unit 3 (1, 1)
No.NameCountTypeFull Name
1BNG-1Ligand/IonB-NONYLGLUCOSIDE
2CU1-1Ligand/IonCOPPER (I) ION
3CUA1Ligand/IonDINUCLEAR COPPER ION
4HAS-1Ligand/IonHEME-AS
5HEM-1Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
Biological Unit 4 (1, 1)
No.NameCountTypeFull Name
1BNG1Ligand/IonB-NONYLGLUCOSIDE
2CU1-1Ligand/IonCOPPER (I) ION
3CUA-1Ligand/IonDINUCLEAR COPPER ION
4HAS-1Ligand/IonHEME-AS
5HEM-1Ligand/IonPROTOPORPHYRIN IX CONTAINING FE

(-) Sites  (5, 5)

Asymmetric Unit (5, 5)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS A:233 , HIS A:282 , HIS A:283 , HOH A:596BINDING SITE FOR RESIDUE CU1 A 803
2AC2SOFTWARELEU A:32 , GLY A:39 , PRO A:40 , GLN A:42 , TYR A:46 , TYR A:65 , LEU A:69 , HIS A:72 , ASN A:76 , ALA A:77 , TYR A:133 , PHE A:385 , HIS A:386 , VAL A:389 , ALA A:390 , THR A:394 , TRP A:428 , MET A:435 , ARG A:449 , ARG A:450 , ALA A:451 , LEU A:477 , HOH A:563 , HOH A:574BINDING SITE FOR RESIDUE HEM A 800
3AC3SOFTWARETYR A:133 , TRP A:229 , TYR A:237 , HIS A:282 , HIS A:283 , THR A:302 , SER A:309 , ALA A:313 , TRP A:335 , LEU A:353 , LEU A:354 , PHE A:356 , GLY A:360 , GLY A:363 , ASN A:366 , ALA A:367 , ASP A:372 , HIS A:376 , VAL A:381 , HIS A:384 , PHE A:385 , GLN A:388 , VAL A:389 , ARG A:449 , HOH A:571 , HOH A:577 , HOH A:584 , HOH A:596 , VAL C:11 , LEU C:15BINDING SITE FOR RESIDUE HAS A 801
4AC4SOFTWAREHIS B:114 , CYS B:149 , GLN B:151 , CYS B:153 , HIS B:157 , MET B:160BINDING SITE FOR RESIDUE CUA B 802
5AC5SOFTWARETRP A:441 , LEU A:444 , ARG C:33BINDING SITE FOR RESIDUE BNG C 804

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3EH4)

(-) Cis Peptide Bonds  (3, 3)

Asymmetric Unit
No.Residues
1Pro A:137 -Pro A:138
2Gln B:91 -Pro B:92
3Asn B:93 -Pro B:94

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3EH4)

(-) PROSITE Motifs  (4, 4)

Asymmetric Unit (4, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1COX1PS50855 Cytochrome oxidase subunit I profile.COX1_THET87-560  1A:7-560
2COX2_CUAPS50857 Cytochrome oxidase subunit II copper A binding domain profile.COX2_THET866-168  1B:66-168
3COX2PS00078 CO II and nitrous oxide reductase dinuclear copper centers signature.COX2_THET8112-160  1B:112-160
4COX1_CUBPS00077 Heme-copper oxidase catalytic subunit, copper B binding region signature.COX1_THET8229-283  1A:229-283
Biological Unit 1 (4, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1COX1PS50855 Cytochrome oxidase subunit I profile.COX1_THET87-560  1A:7-560
2COX2_CUAPS50857 Cytochrome oxidase subunit II copper A binding domain profile.COX2_THET866-168  1B:66-168
3COX2PS00078 CO II and nitrous oxide reductase dinuclear copper centers signature.COX2_THET8112-160  1B:112-160
4COX1_CUBPS00077 Heme-copper oxidase catalytic subunit, copper B binding region signature.COX1_THET8229-283  1A:229-283
Biological Unit 2 (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1COX1PS50855 Cytochrome oxidase subunit I profile.COX1_THET87-560  1A:7-560
2COX2_CUAPS50857 Cytochrome oxidase subunit II copper A binding domain profile.COX2_THET866-168  0-
3COX2PS00078 CO II and nitrous oxide reductase dinuclear copper centers signature.COX2_THET8112-160  0-
4COX1_CUBPS00077 Heme-copper oxidase catalytic subunit, copper B binding region signature.COX1_THET8229-283  1A:229-283
Biological Unit 3 (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1COX1PS50855 Cytochrome oxidase subunit I profile.COX1_THET87-560  0-
2COX2_CUAPS50857 Cytochrome oxidase subunit II copper A binding domain profile.COX2_THET866-168  1B:66-168
3COX2PS00078 CO II and nitrous oxide reductase dinuclear copper centers signature.COX2_THET8112-160  1B:112-160
4COX1_CUBPS00077 Heme-copper oxidase catalytic subunit, copper B binding region signature.COX1_THET8229-283  0-
Biological Unit 4 (, 0)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1COX1PS50855 Cytochrome oxidase subunit I profile.COX1_THET87-560  0-
2COX2_CUAPS50857 Cytochrome oxidase subunit II copper A binding domain profile.COX2_THET866-168  0-
3COX2PS00078 CO II and nitrous oxide reductase dinuclear copper centers signature.COX2_THET8112-160  0-
4COX1_CUBPS00077 Heme-copper oxidase catalytic subunit, copper B binding region signature.COX1_THET8229-283  0-

(-) Exons   (0, 0)

(no "Exon" information available for 3EH4)

(-) 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:557
 aligned with COX1_THET8 | Q5SJ79 from UniProtKB/Swiss-Prot  Length:562

    Alignment length:557
                                    15        25        35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285       295       305       315       325       335       345       355       365       375       385       395       405       415       425       435       445       455       465       475       485       495       505       515       525       535       545       555       
           COX1_THET8     6 SEISRVYEAYPEKKATLYFLVLGFLALIVGSLFGPFQALNYGNVDAYPLLKRLLPFVQSYYQGLTLHGVLNAIVFTQLFAQAIMVYLPARELNMRPNMGLMWLSWWMAFIGLVVAALPLLANEATVLYTFYPPLKGHWAFYLGASVFVLSTWVSIYIVLDLWRRWKAANPGKVTPLVTYMAVVFWLMWFLASLGLVLEAVLFLLPWSFGLVEGVDPLVARTLFWWTGHPIVYFWLLPAYAIIYTILPKQAGGKLVSDPMARLAFLLFLLLSTPVGFHHQFADPGIDPTWKMIHSVLTLFVAVPSLMTAFTVAASLEFAGRLRGGRGLFGWIRALPWDNPAFVAPVLGLLGFIPGGAGGIVNASFTLDYVVHNTAWVPGHFHLQVASLVTLTAMGSLYWLLPNLTGKPISDAQRRLGLAVVWLWFLGMMIMAVGLHWAGLLNVPRRAYIAQVPDAYPHAAVPMVFNVLAGIVLLVALLLFIYGLFSVLLSRERKPELAEAPLPFAEVISGPEDRRLVLAMDRIGFWFAVAAILVVLAYGPTLVQLFGHLNPVPGWRLW 562
               SCOP domains d3eh4a_ A: Bacterial ba3 type cytochrome c oxidase subunit I                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  SCOP domains
               CATH domains 3eh4A00 A:6-562 Cytochrome C Oxidase, chain A                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhh...............hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...eehhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhh..hhhhhh......hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhh..hhhhhhhhhhh.hhhhhhhhhh....hhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh......hhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh......................hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh........ee..... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) -COX1  PDB: A:7-560 UniProt: 7-560                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         -- PROSITE (1)
                PROSITE (2) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------COX1_CUB  PDB: A:229-283 UniProt: 229-283              --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3eh4 A   6 SEISRVYEAYPEKKATLYFLVLGFLALIVGSLFGPFQALNYGNVDAYPLLKRLLPFVQSYYQGLTLHGVLNAIVFTQLFAQAIMVYLPARELNMRPNMGLMWLSWWMAFIGLVVAALPLLANEATVLYTFYPPLKGHWAFYLGASVFVLSTWVSIYIVLDLWRRWKAANPGKVTPLVTYMAVVFWLMWFLASLGLVLEAVLFLLPWSFGLVEGVDPLVARTLFWWTGHPIVYFWLLPAYAIIYTILPKQAGGRLVSDPMARLAFLLFLLLSTPVGFHHQFADPGIDPTWKMIHSVLTLFVAVPSLMTAFTVAASLEFAGRLRGGRGLFGWIRALPWDNPAFVAPVLGLLGFIPGGAGGIVNASFTLDYVVHNTAWVPGHFHLQVASLVTLTAMGSLYWLLPNLTGKPISDAQRRLGLAVVWLWFLGMMIMAVGLHWAGLLNVPRRAYIAQVPDAYPHAAVPMVFNVLAGIVLLVALLLFIYGLFSVLLSRERKPELAEAPLPFAEVISGPEDRRLVLAMDRIGFWFAVAAILVVLAYGPTLVQLFGHLNPVPGWRLW 562
                                    15        25        35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285       295       305       315       325       335       345       355       365       375       385       395       405       415       425       435       445       455       465       475       485       495       505       515       525       535       545       555       

Chain B from PDB  Type:PROTEIN  Length:166
 aligned with COX2_THET8 | Q5SJ80 from UniProtKB/Swiss-Prot  Length:168

    Alignment length:166
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162      
           COX2_THET8     3 DEHKAHKAILAYEKGWLAFSLAMLFVFIALIAYTLATHTAGVIPAGKLERVDPTTVRQEGPWADPAQAVVQTGPNQYTVYVLAFAFGYQPNPIEVPQGAEIVFKITSPDVIHGFHVEGTNINVEVLPGEVSTVRYTFKRPGEYRIICNQYCGLGHQNMFGTIVVKE 168
               SCOP domains d3eh4b1 B:3-40 automated matches      d3eh4b2 B:41-168 Cytochrome c oxidase                                                                                            SCOP domains
               CATH domains 3eh4B01 B:3-46                              3eh4B02 B:47-168 Cupredoxins -  blue copper proteins                                                                       CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhh....................hhhh.eeeee..eeeeeeeee..eee...eeee...eeeeeee.....eeeee.....eeee.....eeeee.....eeeeee.......hhhh.eeeeeee. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) ---------------------------------------------------------------COX2_CUA  PDB: B:66-168 UniProt: 66-168                                                                 PROSITE (2)
                PROSITE (3) -------------------------------------------------------------------------------------------------------------COX2  PDB: B:112-160 UniProt: 112-160            -------- PROSITE (3)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3eh4 B   3 DQHKAHKAILAYEKGWLAFSLAMLFVFIALIAYTLATHTAGVIPAGKLERVDPTTVRQEGPWADPAQAVVQTGPNQYTVYVLAFAFGYQPNPIEVPQGAEIVFKITSPDVIHGFHVEGTNINVEVLPGEVSTVRYTFKRPGEYRIICNQYCGLGHQNMFGTIVVKE 168
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162      

Chain C from PDB  Type:PROTEIN  Length:33
 aligned with COXA_THET8 | P82543 from UniProtKB/Swiss-Prot  Length:34

    Alignment length:33
                                    11        21        31   
           COXA_THET8     2 EEKPKGALAVILVLTLTILVFWLGVYAVFFARG  34
               SCOP domains d3eh4c_ C:                        SCOP domains
               CATH domains --------------------------------- CATH domains
               Pfam domains --------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) --------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------- PROSITE
                 Transcript --------------------------------- Transcript
                 3eh4 C   2 EEKPKGALAVILVLTLTILVFWLGVYAVFFARG  34
                                    11        21        31   

   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  (4, 4)

Asymmetric Unit

(-) CATH Domains  (3, 3)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3EH4)

(-) Gene Ontology  (18, 37)

Asymmetric Unit(hide GO term definitions)
Chain A   (COX1_THET8 | Q5SJ79)
molecular function
    GO:0004129    cytochrome-c oxidase activity    Catalysis of the reaction: 4 ferrocytochrome c + O2 + 4 H+ = 4 ferricytochrome c + 2 H2O.
    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:0020037    heme binding    Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring.
    GO:0005506    iron ion binding    Interacting selectively and non-covalently with iron (Fe) ions.
    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.
biological process
    GO:0009060    aerobic respiration    The enzymatic release of energy from inorganic and organic compounds (especially carbohydrates and fats) which requires oxygen as the terminal electron acceptor.
    GO:1902600    hydrogen ion transmembrane transport    The directed movement of hydrogen ion (proton) across a membrane.
    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: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:0006119    oxidative phosphorylation    The phosphorylation of ADP to ATP that accompanies the oxidation of a metabolite through the operation of the respiratory chain. Oxidation of compounds establishes a proton gradient across the membrane, providing the energy for ATP synthesis.
    GO:0015992    proton transport    The directed movement of protons (hydrogen ions) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
cellular component
    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:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
    GO:0070469    respiratory chain    The protein complexes that form the electron transport system (the respiratory chain), associated with a cell membrane, usually the plasma membrane (in prokaryotes) or the inner mitochondrial membrane (on eukaryotes). The respiratory chain complexes transfer electrons from an electron donor to an electron acceptor and are associated with a proton pump to create a transmembrane electrochemical gradient.

Chain B   (COX2_THET8 | Q5SJ80)
molecular function
    GO:0005507    copper ion binding    Interacting selectively and non-covalently with copper (Cu) ions.
    GO:0004129    cytochrome-c oxidase activity    Catalysis of the reaction: 4 ferrocytochrome c + O2 + 4 H+ = 4 ferricytochrome c + 2 H2O.
    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.
biological process
    GO:0022900    electron transport chain    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:1902600    hydrogen ion transmembrane transport    The directed movement of hydrogen ion (proton) across a membrane.
    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: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:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
    GO:0070469    respiratory chain    The protein complexes that form the electron transport system (the respiratory chain), associated with a cell membrane, usually the plasma membrane (in prokaryotes) or the inner mitochondrial membrane (on eukaryotes). The respiratory chain complexes transfer electrons from an electron donor to an electron acceptor and are associated with a proton pump to create a transmembrane electrochemical gradient.

Chain C   (COXA_THET8 | P82543)
molecular function
    GO:0004129    cytochrome-c oxidase activity    Catalysis of the reaction: 4 ferrocytochrome c + O2 + 4 H+ = 4 ferricytochrome c + 2 H2O.
    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.
biological process
    GO:1902600    hydrogen ion transmembrane transport    The directed movement of hydrogen ion (proton) across a membrane.
    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: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:0015992    proton transport    The directed movement of protons (hydrogen ions) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
cellular component
    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:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
    GO:0070469    respiratory chain    The protein complexes that form the electron transport system (the respiratory chain), associated with a cell membrane, usually the plasma membrane (in prokaryotes) or the inner mitochondrial membrane (on eukaryotes). The respiratory chain complexes transfer electrons from an electron donor to an electron acceptor and are associated with a proton pump to create a transmembrane electrochemical gradient.

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 Related Entries

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

UniProtKB/Swiss-Prot
        COX1_THET8 | Q5SJ791ehk 2qpd 2qpe 3bvd 3eh3 3eh5 3qjq 3qjr 3qjs 3qjt 3qju 3qjv 3s33 3s38 3s39 3s3a 3s3b 3s3c 3s3d 3s8f 3s8g 4fa7 4faa 4g70 4g71 4g72 4g7q 4g7r 4g7s 4gp4 4gp5 4gp8 4n4y
        COX2_THET8 | Q5SJ801ehk 2qpd 2qpe 3bvd 3eh3 3eh5 3qjq 3qjr 3qjs 3qjt 3qju 3qjv 3s33 3s38 3s39 3s3a 3s3b 3s3c 3s3d 3s8f 3s8g 4fa7 4faa 4g70 4g71 4g72 4g7q 4g7r 4g7s 4gp4 4gp5 4gp8 4n4y
        COXA_THET8 | P825431ehk 1xme 2qpd 2qpe 3bvd 3eh3 3eh5 3qjq 3qjr 3qjs 3qjt 3qju 3qjv 3s33 3s38 3s39 3s3a 3s3b 3s3c 3s3d 3s8f 3s8g 4fa7 4faa 4g70 4g71 4g72 4g7q 4g7r 4g7s 4gp4 4gp5 4gp8 4n4y

(-) Related Entries Specified in the PDB File

1xme WILD TYPE RECOMBINANT CYTOCHROME BA3
2qpd I-K258R MUTANT
2qpe I-K258R/II-E4Q MUTANT
3eh3
3eh5