9KPT | pdb_00009kpt

Cryo-EM structure of Saccharomyces cerevisiae Mitochondrial Respiratory Complex II in UQ1-bound state

External Resource: Annotation

Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: MemProtMD

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
D	PF05328	CybS, succinate dehydrogenase cytochrome B small subunit (CybS)	CybS, succinate dehydrogenase cytochrome B small subunit	-	Family
C	PF01127	Succinate dehydrogenase/Fumarate reductase transmembrane subunit (Sdh_cyt)	Succinate dehydrogenase/Fumarate reductase transmembrane subunit	-	Family
B	PF13085	2Fe-2S iron-sulfur cluster binding domain (Fer2_3)	2Fe-2S iron-sulfur cluster binding domain	The 2Fe-2S ferredoxin family have a general core structure consisting of beta(2)-alpha-beta(2) which abeta-grasp type fold. The domain is around one hundred amino acids with four conserved cysteine residues to which the 2Fe-2S cluster is ligated.	Domain
B	PF13534	4Fe-4S dicluster domain (Fer4_17)	4Fe-4S dicluster domain	This family includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. The structure of the domain is an alpha-antiparallel beta sandwich.	Domain
A	PF02910	Fumarate reductase flavoprotein C-term (Succ_DH_flav_C)	Fumarate reductase flavoprotein C-term	This family contains fumarate reductases, succinate dehydrogenases and L-aspartate oxidases.	Domain
A	PF00890	FAD binding domain (FAD_binding_2)	FAD binding domain	This family includes members that bind FAD. This family includes the flavoprotein subunits from succinate and fumarate dehydrogenase, aspartate oxidase and the alpha subunit of adenylylsulphate reductase.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D	Succinate dehydrogenase [ubiquinone] cytochrome b small subunit, mitochondrial	binding quinone binding ubiquinone binding small molecule binding tetrapyrrole binding heme binding cation binding ion binding metal ion binding	aerobic respiration cellular respiration tricarboxylic acid cycle energy derivation by oxidation of organic compounds primary metabolic process metabolic process cellular process generation of precursor metabolites and energy mitochondrial electron transport, succinate to ubiquinone aerobic electron transport chain oxidative phosphorylation ATP synthesis coupled electron transport electron transport chain respiratory electron transport chain aerobic respiration cellular respiration tricarboxylic acid cycle energy derivation by oxidation of organic compounds primary metabolic process metabolic process cellular process generation of precursor metabolites and energy mitochondrial electron transport, succinate to ubiquinone aerobic electron transport chain oxidative phosphorylation ATP synthesis coupled electron transport electron transport chain respiratory electron transport chain mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex protein-containing complex catalytic complex respiratory chain complex II (succinate dehydrogenase) membrane protein complex oxidoreductase complex
C	Sdh3p	binding quinone binding small molecule binding electron transfer activity cation binding ion binding metal ion binding	aerobic respiration cellular respiration tricarboxylic acid cycle energy derivation by oxidation of organic compounds primary metabolic process metabolic process cellular process generation of precursor metabolites and energy establishment of protein localization cellular localization establishment of protein localization to mitochondrial membrane protein insertion into mitochondrial membrane mitochondrial membrane organization cellular component organization aerobic respiration cellular respiration tricarboxylic acid cycle energy derivation by oxidation of organic compounds primary metabolic process metabolic process cellular process generation of precursor metabolites and energy establishment of protein localization cellular localization establishment of protein localization to mitochondrial membrane protein insertion into mitochondrial membrane mitochondrial membrane organization cellular component organization localization establishment of localization in cell cellular component organization or biogenesis intracellular protein localization protein insertion into mitochondrial inner membrane protein insertion into membrane mitochondrion organization membrane organization establishment of protein localization to membrane inner mitochondrial membrane organization localization within membrane establishment of localization organelle organization establishment of protein localization to organelle protein localization to organelle macromolecule localization protein localization to mitochondrion establishment of protein localization to mitochondrion mitochondrial electron transport, succinate to ubiquinone aerobic electron transport chain oxidative phosphorylation ATP synthesis coupled electron transport electron transport chain respiratory electron transport chain mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane mitochondrial protein-containing complex protein-containing complex membrane protein complex TIM22 mitochondrial import inner membrane insertion complex inner mitochondrial membrane protein complex respiratory chain complex catalytic complex respiratory chain complex II (succinate dehydrogenase) oxidoreductase complex
B	Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial	iron-sulfur cluster binding binding 3 iron, 4 sulfur cluster binding metal cluster binding small molecule binding oxidoreductase activity succinate dehydrogenase activity oxidoreductase activity, acting on the CH-CH group of donors oxidoreductase activity, acting on the CH-CH group of donors, quinone or related compound as acceptor catalytic activity succinate dehydrogenase (quinone) activity 4 iron, 4 sulfur cluster binding electron transfer activity 2 iron, 2 sulfur cluster binding iron-sulfur cluster binding binding 3 iron, 4 sulfur cluster binding metal cluster binding small molecule binding oxidoreductase activity succinate dehydrogenase activity oxidoreductase activity, acting on the CH-CH group of donors oxidoreductase activity, acting on the CH-CH group of donors, quinone or related compound as acceptor catalytic activity succinate dehydrogenase (quinone) activity 4 iron, 4 sulfur cluster binding electron transfer activity 2 iron, 2 sulfur cluster binding cation binding ion binding metal ion binding	mitochondrial electron transport, succinate to ubiquinone aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy respiratory electron transport chain metabolic process cellular process mitochondrial ATP synthesis coupled electron transport tricarboxylic acid cycle mitochondrial electron transport, succinate to ubiquinone aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy respiratory electron transport chain metabolic process cellular process mitochondrial ATP synthesis coupled electron transport tricarboxylic acid cycle primary metabolic process	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex protein-containing complex catalytic complex respiratory chain complex II (succinate dehydrogenase) membrane protein complex oxidoreductase complex
A	Succinate dehydrogenase [ubiquinone] flavoprotein subunit, mitochondrial	flavin adenine dinucleotide binding binding nucleoside phosphate binding ion binding anion binding nucleotide binding heterocyclic compound binding small molecule binding oxidoreductase activity succinate dehydrogenase activity oxidoreductase activity, acting on the CH-CH group of donors oxidoreductase activity, acting on the CH-CH group of donors, quinone or related compound as acceptor catalytic activity succinate dehydrogenase (quinone) activity flavin adenine dinucleotide binding binding nucleoside phosphate binding ion binding anion binding nucleotide binding heterocyclic compound binding small molecule binding oxidoreductase activity succinate dehydrogenase activity oxidoreductase activity, acting on the CH-CH group of donors oxidoreductase activity, acting on the CH-CH group of donors, quinone or related compound as acceptor catalytic activity succinate dehydrogenase (quinone) activity electron transfer activity	aerobic respiration cellular respiration tricarboxylic acid cycle energy derivation by oxidation of organic compounds primary metabolic process metabolic process cellular process generation of precursor metabolites and energy mitochondrial electron transport, succinate to ubiquinone aerobic electron transport chain oxidative phosphorylation ATP synthesis coupled electron transport electron transport chain respiratory electron transport chain aerobic respiration cellular respiration tricarboxylic acid cycle energy derivation by oxidation of organic compounds primary metabolic process metabolic process cellular process generation of precursor metabolites and energy mitochondrial electron transport, succinate to ubiquinone aerobic electron transport chain oxidative phosphorylation ATP synthesis coupled electron transport electron transport chain respiratory electron transport chain mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex protein-containing complex catalytic complex respiratory chain complex II (succinate dehydrogenase) membrane protein complex oxidoreductase complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
D	IPR034804	Fumarate reductase/succinate dehydrogenase, transmembrane subunit	Homologous Superfamily
D	IPR007992	Succinate dehydrogenase [ubiquinone] cytochrome b small subunit, CybS	Family
C	IPR034804	Fumarate reductase/succinate dehydrogenase, transmembrane subunit	Homologous Superfamily
C	IPR014314	Succinate dehydrogenase, cytochrome b556 subunit	Family
C	IPR018495	Succinate dehydrogenase, cytochrome b subunit, conserved site	Conserved Site
C	IPR000701	Succinate dehydrogenase/fumarate reductase type B, transmembrane subunit	Family
B	IPR001041	2Fe-2S ferredoxin-type iron-sulfur binding domain	Domain
B	IPR006058	2Fe-2S ferredoxin, iron-sulphur binding site	Binding Site
B	IPR004489	Succinate dehydrogenase/fumarate reductase iron-sulphur protein	Family
B	IPR050573	Succinate Dehydrogenase/Fumarate Reductase Iron-Sulfur	Family
B	IPR017900	4Fe-4S ferredoxin, iron-sulphur binding, conserved site	Conserved Site
B	IPR012675	Beta-grasp domain superfamily	Homologous Superfamily
B	IPR025192	Succinate dehydogenase/fumarate reductase N-terminal	Domain
B	IPR036010	2Fe-2S ferredoxin-like superfamily	Homologous Superfamily
B	IPR009051	Alpha-helical ferredoxin	Homologous Superfamily
B	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
A	IPR003953	FAD-dependent oxidoreductase 2, FAD-binding domain	Domain
A	IPR015939	Fumarate reductase/succinate dehydrogenase flavoprotein-like, C-terminal	Domain
A	IPR003952	Fumarate reductase/succinate dehydrogenase, FAD-binding site	Binding Site
A	IPR037099	Fumarate reductase/succinate dehydrogenase flavoprotein-like, C-terminal domain superfamily	Homologous Superfamily
A	IPR036188	FAD/NAD(P)-binding domain superfamily	Homologous Superfamily
A	IPR030664	FAD-dependent oxidoreductase SdhA/FrdA/AprA	Family
A	IPR027477	Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain superfamily	Homologous Superfamily
A	IPR014006	Succinate dehydrogenase/fumarate reductase, flavoprotein subunit	Family
A	IPR011281	Succinate dehydrogenase, flavoprotein subunit	Family