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(-) Description

Title :  STRUCTURE OF PORCINE ELECTRON TRANSFER FLAVOPROTEIN-UBIQUINONE OXIDOREDUCTASE IN COMPLEXED WITH UBIQUINONE
 
Authors :  J. Zhang, F. E. Frerman, J. -J. P. Kim
Date :  06 Apr 06  (Deposition) - 17 Oct 06  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.50
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Keywords :  Electron-Transfer, Oxidoreductase, Flavoprotein, Ubiquinone (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  J. Zhang, F. E. Frerman, J. J. Kim
Structure Of Electron Transfer Flavoprotein-Ubiquinone Oxidoreductase And Electron Transfer To The Mitochondrial Ubiquinone Pool.
Proc. Natl. Acad. Sci. Usa V. 103 16212 2006
PubMed-ID: 17050691  |  Reference-DOI: 10.1073/PNAS.0604567103
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - ELECTRON TRANSFER FLAVOPROTEIN-UBIQUINONE OXIDOREDUCTASE
    ChainsA, B
    EC Number1.5.5.1
    Organism CommonPIG
    Organism ScientificSUS SCROFA
    Organism Taxid9823
    SynonymETF-QO, ETF-UBIQUINONE OXIDOREDUCTASE, ETF DEHYDROGENASE, ELECTRON-TRANSFERRING- FLAVOPROTEIN DEHYDROGENASE, FRAGMENT

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit AB
Biological Unit 1 (1x)A 
Biological Unit 2 (1x) B

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (6, 20)

Asymmetric Unit (6, 20)
No.NameCountTypeFull Name
1BHG3Ligand/Ion2-HEXYLOXY-6-HYDROXYMETHYL-TETRAHYDRO-PYRAN-3,4,5-TRIOL
2EDO10Ligand/Ion1,2-ETHANEDIOL
3FAD2Ligand/IonFLAVIN-ADENINE DINUCLEOTIDE
4NA1Ligand/IonSODIUM ION
5SF42Ligand/IonIRON/SULFUR CLUSTER
6UQ52Ligand/Ion2,3-DIMETHOXY-5-METHYL-6-(3,11,15,19-TETRAMETHYL-EICOSA-2,6,10,14,18-PENTAENYL)-[1,4]BENZOQUINONE
Biological Unit 1 (5, 14)
No.NameCountTypeFull Name
1BHG2Ligand/Ion2-HEXYLOXY-6-HYDROXYMETHYL-TETRAHYDRO-PYRAN-3,4,5-TRIOL
2EDO9Ligand/Ion1,2-ETHANEDIOL
3FAD1Ligand/IonFLAVIN-ADENINE DINUCLEOTIDE
4NA-1Ligand/IonSODIUM ION
5SF41Ligand/IonIRON/SULFUR CLUSTER
6UQ51Ligand/Ion2,3-DIMETHOXY-5-METHYL-6-(3,11,15,19-TETRAMETHYL-EICOSA-2,6,10,14,18-PENTAENYL)-[1,4]BENZOQUINONE
Biological Unit 2 (5, 5)
No.NameCountTypeFull Name
1BHG1Ligand/Ion2-HEXYLOXY-6-HYDROXYMETHYL-TETRAHYDRO-PYRAN-3,4,5-TRIOL
2EDO1Ligand/Ion1,2-ETHANEDIOL
3FAD1Ligand/IonFLAVIN-ADENINE DINUCLEOTIDE
4NA-1Ligand/IonSODIUM ION
5SF41Ligand/IonIRON/SULFUR CLUSTER
6UQ51Ligand/Ion2,3-DIMETHOXY-5-METHYL-6-(3,11,15,19-TETRAMETHYL-EICOSA-2,6,10,14,18-PENTAENYL)-[1,4]BENZOQUINONE

(-) Sites  (20, 20)

Asymmetric Unit (20, 20)
No.NameEvidenceResiduesDescription
01AC1SOFTWARESER A:424 , PHE A:441 , PHE A:445 , MET A:448 , PRO A:450 , TRP A:451BINDING SITE FOR RESIDUE BHG A 616
02AC2SOFTWARELEU A:128 , PRO A:129 , GLY A:130 , HIS A:269 , ILE A:428 , TRP A:443BINDING SITE FOR RESIDUE BHG A 617
03AC3SOFTWAREPHE B:441BINDING SITE FOR RESIDUE BHG B 618
04AC4SOFTWAREASN A:232 , HOH A:828 , HOH A:874 , HOH A:935 , HOH A:944 , HOH A:966BINDING SITE FOR RESIDUE NA A 1070
05AC5SOFTWARELEU A:504 , CYS A:528 , CYS A:553 , VAL A:554 , CYS A:556 , LYS A:557 , CYS A:559 , TRP A:570BINDING SITE FOR RESIDUE SF4 A 610
06AC6SOFTWAREVAL A:41 , GLY A:42 , GLY A:44 , PRO A:45 , ALA A:46 , GLU A:71 , LYS A:72 , HIS A:79 , SER A:82 , GLY A:83 , ALA A:84 , CYS A:85 , ALA A:166 , ALA A:167 , ALA A:212 , GLU A:213 , GLY A:214 , HIS A:218 , LEU A:219 , ARG A:331 , GLY A:353 , CYS A:354 , ILE A:364 , LYS A:365 , GLY A:366 , THR A:367 , HOH A:741 , HOH A:769 , HOH A:792 , HOH A:840 , HOH A:926 , HOH A:931 , HOH A:936 , HOH A:942 , HOH A:994 , HOH A:1043BINDING SITE FOR RESIDUE FAD A 611
07AC7SOFTWAREPHE A:114 , MET A:133 , HIS A:260 , VAL A:262 , TYR A:271 , GLY A:272 , GLY A:273 , SER A:274 , ILE A:364 , GLY A:434 , MET A:435 , THR A:438 , GLY A:439BINDING SITE FOR RESIDUE UQ5 A 612
08AC8SOFTWARELEU B:504 , CYS B:528 , PRO B:529 , ALA B:530 , VAL B:532 , TYR B:533 , CYS B:553 , VAL B:554 , CYS B:556 , LYS B:557 , CYS B:559 , TRP B:570BINDING SITE FOR RESIDUE SF4 B 613
09AC9SOFTWAREVAL B:41 , GLY B:42 , PRO B:45 , ALA B:46 , GLU B:71 , LYS B:72 , HIS B:79 , SER B:82 , GLY B:83 , ALA B:84 , CYS B:85 , ALA B:167 , GLU B:213 , GLY B:214 , HIS B:218 , PHE B:275 , TYR B:277 , ARG B:331 , GLY B:353 , CYS B:354 , ILE B:364 , LYS B:365 , GLY B:366 , THR B:367 , VAL B:572 , HOH B:859 , HOH B:1013BINDING SITE FOR RESIDUE FAD B 614
10BC1SOFTWAREPHE B:114 , MET B:133 , HIS B:260 , THR B:261 , VAL B:262 , GLY B:272 , GLY B:273 , SER B:274 , ILE B:364 , GLY B:434 , MET B:435 , THR B:438 , GLY B:439BINDING SITE FOR RESIDUE UQ5 B 615
11BC2SOFTWAREGLN A:480 , GLU A:497 , GLU A:574 , GLY A:577 , HOH A:811BINDING SITE FOR RESIDUE EDO A 619
12BC3SOFTWAREPRO B:129 , GLY B:130 , ARG B:268 , TRP B:443BINDING SITE FOR RESIDUE EDO B 620
13BC4SOFTWAREVAL A:489 , ALA A:490 , THR A:494 , HOH A:857BINDING SITE FOR RESIDUE EDO A 621
14BC5SOFTWAREHIS A:12 , TYR A:13 , ALA A:168 , HIS A:218 , VAL A:571 , VAL A:572BINDING SITE FOR RESIDUE EDO A 622
15BC6SOFTWAREILE A:9 , THR A:10 , THR A:11 , HIS A:12 , ALA A:502 , LEU A:504 , THR A:505 , ILE A:548BINDING SITE FOR RESIDUE EDO A 623
16BC7SOFTWARELYS A:324 , ARG A:325 , PHE A:483 , GLY A:493 , ASN A:495 , ALA A:580 , HOH A:767 , HOH A:905 , HOH A:919 , HOH A:993BINDING SITE FOR RESIDUE EDO A 624
17BC8SOFTWAREARG A:268BINDING SITE FOR RESIDUE EDO A 625
18BC9SOFTWAREGLN A:525 , HOH A:934BINDING SITE FOR RESIDUE EDO A 626
19CC1SOFTWAREASN A:280 , GLY A:282 , HOH A:1050BINDING SITE FOR RESIDUE EDO A 627
20CC2SOFTWAREPHE A:32 , ALA A:33BINDING SITE FOR RESIDUE EDO A 628

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2GMH)

(-) Cis Peptide Bonds  (3, 3)

Asymmetric Unit
No.Residues
1Val A:6 -Pro A:7
2Trp A:264 -Pro A:265
3Trp B:264 -Pro B:265

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 2)

Asymmetric Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
14FE4S_FER_2PS51379 4Fe-4S ferredoxin-type iron-sulfur binding domain profile.ETFD_PIG577-606
 
  2A:544-573
B:544-573
Biological Unit 1 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
14FE4S_FER_2PS51379 4Fe-4S ferredoxin-type iron-sulfur binding domain profile.ETFD_PIG577-606
 
  1A:544-573
-
Biological Unit 2 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
14FE4S_FER_2PS51379 4Fe-4S ferredoxin-type iron-sulfur binding domain profile.ETFD_PIG577-606
 
  1-
B:544-573

(-) Exons   (0, 0)

(no "Exon" information available for 2GMH)

(-) 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:581
 aligned with ETFD_PIG | P55931 from UniProtKB/Swiss-Prot  Length:617

    Alignment length:581
                                    46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346       356       366       376       386       396       406       416       426       436       446       456       466       476       486       496       506       516       526       536       546       556       566       576       586       596       606       616 
             ETFD_PIG    37 CKVPRITTHYTIYPRDQDKRWEGVNMERFAEEADVVIVGAGPAGLSAATRLKQLAAQHEKDLRVCLVEKAAHIGAHTLSGACLDPRAFEELFPDWKEKGAPLNTPVTEDRFGILTEKYRIPVPILPGLPMNNHGNYVVRLGHLVSWMGEQAEALGVEVYPGYAAAEILFHEDGSVKGIATNDVGIQKDGAPKTTFERGLELHAKVTIFAEGCHGHLAKQLYKKFDLRANCEPQTYGIGLKELWVIDEKKWKPGRVDHTVGWPLDRHTYGGSFLYHLNEGEPLLALGFVVGLDYQNPYLSPFREFQRWKHHPSIKPTLEGGKRIAYGARALNEGGFQSIPKLTFPGGLLIGCSPGFMNVPKIKGTHTAMKSGTLAAESIFNQLTSENLQSKTIGLHVTEYEDNLKNSWVWKELYSVRNIRPSCHGILGVYGGMIYTGIFYWIFRGMEPWTLKHKGSDSDQLKPAKDCTPIEYPKPDGQISFDLLSSVALSGTNHEHDQPAHLTLKDDSVPVNRNLSIYDGPEQRFCPAGVYEFVPLEQGDGFRLQINAQNCVHCKTCDIKDPSQNINWVVPEGGGGPAYNGM 617
               SCOP domains d2gmha1 A:4-236,A:336-482 Electron transfer flavoprotein-ubiquinone oxidoreductase, EFT-QO                                                                                                                                               d2gmha2 A:237-335 Electron transfer flavoprotein-ubiquinone oxidoreductase, EFT-QO                 d2gmha1 A:4-236,A:336-482 Electron transfer flavoprotein-ubiquinone oxidoreductase, EFT-QO                                                         d2gmha3 A:483-584 Electron transfer flavoprotein-ubiquinone oxidoreductase, EFT-QO                     SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .................hhhhh.......eee..eeee..hhhhhhhhhhhhhhhhhh.....eeee..............ee.hhhhhhhh.hhhhhh....ee..eeeeeee....eee..............ee.hhhhhhhhhhhhhhhh..eee....eeeeee.....eeeeee..eee.....eeeeee...eee..eeee.....hhhhhhhhhhh..........eeeeeeeeee.hhhhh...eeeeeee........eeeeeee......eeeeeeeee........hhhhhhhhhh....hhhhhh..eeeeeeeeeee.hhhhhh...ee..eee..............hhhhhhhhhhhhhhhhhhhhh.............hhhhhhhhhhhhhhhhhhh...hhhhhh..hhhhhhhhhhhhh...............hhhhh..hhhhh..............hhhhhhhh............eee...hhhhhhhhhhhh.hhhhhh....eeeee......eeeee.hhhh...hhhhhhh....eee.............. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------4FE4S_FER_2  PDB: A:544-573   ----------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2gmh A   4 CKVPRITTHYTIYPRDQDKRWEGVNMERFAEEADVVIVGAGPAGLSAATRLKQLAAQHEKDLRVCLVEKAAHIGAHTLSGACLDPRAFEELFPDWKEKGAPLNTPVTEDRFGILTEKYRIPVPILPGLPMNNHGNYVVRLGHLVSWMGEQAEALGVEVYPGYAAAEILFHEDGSVKGIATNDVGIQKDGAPKTTFERGLELHAKVTIFAEGCHGHLAKQLYKKFDLRANCEPQTYGIGLKELWVIDEKKWKPGRVDHTVGWPLDRHTYGGSFLYHLNEGEPLLALGFVVGLDYQNPYLSPFREFQRWKHHPSIKPTLEGGKRIAYGARALNEGGFQSIPKLTFPGGLLIGCSPGFMNVPKIKGTHTAMKSGTLAAESIFNQLTSENLQSKTIGLHVTEYEDNLKNSWVWKELYSVRNIRPSCHGILGVYGGMIYTGIFYWIFRGMEPWTLKHKGSDSDQLKPAKDCTPIEYPKPDGQISFDLLSSVALSGTNHEHDQPAHLTLKDDSVPVNRNLSIYDGPEQRFCPAGVYEFVPLEQGDGFRLQINAQNCVHCKTCDIKDPSQNINWVVPEGGGGPAYNGM 584
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423       433       443       453       463       473       483       493       503       513       523       533       543       553       563       573       583 

Chain B from PDB  Type:PROTEIN  Length:578
 aligned with ETFD_PIG | P55931 from UniProtKB/Swiss-Prot  Length:617

    Alignment length:578
                                    49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369       379       389       399       409       419       429       439       449       459       469       479       489       499       509       519       529       539       549       559       569       579       589       599       609        
             ETFD_PIG    40 PRITTHYTIYPRDQDKRWEGVNMERFAEEADVVIVGAGPAGLSAATRLKQLAAQHEKDLRVCLVEKAAHIGAHTLSGACLDPRAFEELFPDWKEKGAPLNTPVTEDRFGILTEKYRIPVPILPGLPMNNHGNYVVRLGHLVSWMGEQAEALGVEVYPGYAAAEILFHEDGSVKGIATNDVGIQKDGAPKTTFERGLELHAKVTIFAEGCHGHLAKQLYKKFDLRANCEPQTYGIGLKELWVIDEKKWKPGRVDHTVGWPLDRHTYGGSFLYHLNEGEPLLALGFVVGLDYQNPYLSPFREFQRWKHHPSIKPTLEGGKRIAYGARALNEGGFQSIPKLTFPGGLLIGCSPGFMNVPKIKGTHTAMKSGTLAAESIFNQLTSENLQSKTIGLHVTEYEDNLKNSWVWKELYSVRNIRPSCHGILGVYGGMIYTGIFYWIFRGMEPWTLKHKGSDSDQLKPAKDCTPIEYPKPDGQISFDLLSSVALSGTNHEHDQPAHLTLKDDSVPVNRNLSIYDGPEQRFCPAGVYEFVPLEQGDGFRLQINAQNCVHCKTCDIKDPSQNINWVVPEGGGGPAYNGM 617
               SCOP domains d2gmhb1 B:7-236,B:336-482 Electron transfer flavoprotein-ubiquinone oxidoreductase, EFT-QO                                                                                                                                            d2gmhb2 B:237-335 Electron transfer flavoprotein-ubiquinone oxidoreductase, EFT-QO                 d2gmhb1 B:7-236,B:336-482 Electron transfer flavoprotein-ubiquinone oxidoreductase, EFT-QO                                                         d2gmhb3 B:483-584 Electron transfer flavoprotein-ubiquinone oxidoreductase, EFT-QO                     SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..........hhhhhhhhh.......eee..eeee..hhhhhhhhhhhhhhhhh......eeee..............ee...hhhhhh...............eeeeeee....eee..............ee.hhhhhhhhhhhhhhh...eee....eeeeee.....eeeeee...................eee..eeee.....hhhhhhhhhhh..........eeeeeeeeee.hhhhh...eeeeeee........eeeeeee......eeeeeeeee........hhhhhhhhhh.....hhhhh..eeeeeeeeeee.hhhhhh...ee..eee..............hhhhhhhhhhhhhhhhhhhh..............hhhhhhhhhhhhhhhhhhh..hhhhhh..hhhhhhhhhhhhhh...............hhhhh..hhhhh..............hhhhhhhh............ee....hhhhhhhhhhhh.hhhhhh....eeee........eeee........hhhhhhh.....ee.............. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------4FE4S_FER_2  PDB: B:544-573   ----------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2gmh B   7 PRITTHYTIYPRDQDKRWEGVNMERFAEEADVVIVGAGPAGLSAATRLKQLAAQHEKDLRVCLVEKAAHIGAHTLSGACLDPRAFEELFPDWKEKGAPLNTPVTEDRFGILTEKYRIPVPILPGLPMNNHGNYVVRLGHLVSWMGEQAEALGVEVYPGYAAAEILFHEDGSVKGIATNDVGIQKDGAPKTTFERGLELHAKVTIFAEGCHGHLAKQLYKKFDLRANCEPQTYGIGLKELWVIDEKKWKPGRVDHTVGWPLDRHTYGGSFLYHLNEGEPLLALGFVVGLDYQNPYLSPFREFQRWKHHPSIKPTLEGGKRIAYGARALNEGGFQSIPKLTFPGGLLIGCSPGFMNVPKIKGTHTAMKSGTLAAESIFNQLTSENLQSKTIGLHVTEYEDNLKNSWVWKELYSVRNIRPSCHGILGVYGGMIYTGIFYWIFRGMEPWTLKHKGSDSDQLKPAKDCTPIEYPKPDGQISFDLLSSVALSGTNHEHDQPAHLTLKDDSVPVNRNLSIYDGPEQRFCPAGVYEFVPLEQGDGFRLQINAQNCVHCKTCDIKDPSQNINWVVPEGGGGPAYNGM 584
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346       356       366       376       386       396       406       416       426       436       446       456       466       476       486       496       506       516       526       536       546       556       566       576        

   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, 6)

Asymmetric Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2GMH)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2GMH)

(-) Gene Ontology  (15, 15)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (ETFD_PIG | P55931)
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:0004174    electron-transferring-flavoprotein dehydrogenase activity    Catalysis of the reaction: reduced ETF + ubiquinone = ETF + ubiquinol.
    GO:0050660    flavin adenine dinucleotide binding    Interacting selectively and non-covalently with FAD, flavin-adenine dinucleotide, the coenzyme or the prosthetic group of various flavoprotein oxidoreductase enzymes, in either the oxidized form, FAD, or the reduced form, FADH2.
    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:0043783    oxidoreductase activity, oxidizing metal ions with flavin as acceptor    Catalysis of an oxidation-reduction in which the oxidation state of metal ion is altered and flavin acts as an electron acceptor.
    GO:0048039    ubiquinone binding    Interacting selectively and non-covalently with ubiquinone, a quinone derivative with a tail of isoprene units.
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: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:0006979    response to oxidative stress    Any process that results in a change in state or activity of a cell or an organism (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.
cellular component
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0005743    mitochondrial inner membrane    The inner, i.e. lumen-facing, lipid bilayer of the mitochondrial envelope. It is highly folded to form cristae.
    GO:0005739    mitochondrion    A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.

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        ETFD_PIG | P559312gmj

(-) Related Entries Specified in the PDB File

2gmj STRUCTURE OF PORCINE ELECTRON TRANSFER FLAVOPROTEIN- UBIQUINONE OXIDOREDUCTASE