Detail Information for IndEnz0002013068
IED ID IndEnz0002013068
Enzyme Type ID protease013068
Protein Name Cytochrome b-c1 complex subunit Rieske, mitochondrial
EC 7.1.1.8
Complex III subunit 5
Complex III subunit V
Rieske iron-sulfur protein
RISP
Ubiquinol-cytochrome c oxidoreductase iron-sulfur subunit
Ubiquinol-cytochrome c reductase complex 25 kDa protein
Gene Name fes-1 NCU06606
Organism Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987)
Taxonomic Lineage cellular organisms Eukaryota Opisthokonta Fungi Dikarya Ascomycota saccharomyceta Pezizomycotina leotiomyceta sordariomyceta Sordariomycetes Sordariomycetidae Sordariales Sordariaceae Neurospora Neurospora crassa Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987)
Enzyme Sequence MAPVSIVSRAAMRAAAAPARAVRALTTSTALQGSSSSTFESPFKGESKAAKVPDFGKYMSKAPPSTNMLFSYFMVGTMGAITAAGAKSTIQEFLKNMSASADVLAMAKVEVDLNAIPEGKNVIIKWRGKPVFIRHRTPAEIEEANKVNVATLRDPETDADRVKKPEWLVMLGVCTHLGCVPIGEAGDYGGWFCPCHGSHYDISGRIRKGPAPLNLEIPLYEFPEEGKLVIG
Enzyme Length 231
Uniprot Accession Number P07056
Absorption
Active Site
Activity Regulation
Binding Site
Calcium Binding
catalytic Activity CATALYTIC ACTIVITY: Reaction=a quinol + 2 Fe(III)-[cytochrome c](out) = a quinone + 2 Fe(II)-[cytochrome c](out) + 2 H(+)(out); Xref=Rhea:RHEA:11484, Rhea:RHEA-COMP:10350, Rhea:RHEA-COMP:14399, ChEBI:CHEBI:15378, ChEBI:CHEBI:24646, ChEBI:CHEBI:29033, ChEBI:CHEBI:29034, ChEBI:CHEBI:132124; EC=7.1.1.8; Evidence={ECO:0000269|PubMed:1847681, ECO:0000269|PubMed:19239619, ECO:0000269|PubMed:3015618};
DNA Binding
EC Number 7.1.1.8
Enzyme Function FUNCTION: Component of the ubiquinol-cytochrome c oxidoreductase, a multisubunit transmembrane complex that is part of the mitochondrial electron transport chain which drives oxidative phosphorylation. The respiratory chain contains 3 multisubunit complexes succinate dehydrogenase (complex II, CII), ubiquinol-cytochrome c oxidoreductase (cytochrome b-c1 complex, complex III, CIII) and cytochrome c oxidase (complex IV, CIV), that cooperate to transfer electrons derived from NADH and succinate to molecular oxygen, creating an electrochemical gradient over the inner membrane that drives transmembrane transport and the ATP synthase. The cytochrome b-c1 complex catalyzes electron transfer from ubiquinol to cytochrome c, linking this redox reaction to translocation of protons across the mitochondrial inner membrane, with protons being carried across the membrane as hydrogens on the quinol. In the process called Q cycle, 2 protons are consumed from the matrix, 4 protons are released into the intermembrane space and 2 electrons are passed to cytochrome c (PubMed:3015618) (Probable). The Rieske protein is a catalytic core subunit containing a [2Fe-2S] iron-sulfur cluster. It cycles between 2 conformational states during catalysis to transfer electrons from the quinol bound in the Q(0) site in cytochrome b to cytochrome c1 (By similarity). {ECO:0000250|UniProtKB:P08067, ECO:0000269|PubMed:3015618, ECO:0000305|PubMed:1847681, ECO:0000305|PubMed:19239619}.
Temperature Dependency
PH Dependency
Pathway
nucleotide Binding
Features Chain (1); Disulfide bond (1); Domain (1); Metal binding (4); Propeptide (1); Topological domain (2); Transit peptide (1); Transmembrane (1)
Keywords 2Fe-2S;Direct protein sequencing;Disulfide bond;Electron transport;Iron;Iron-sulfur;Membrane;Metal-binding;Mitochondrion;Mitochondrion inner membrane;Reference proteome;Respiratory chain;Transit peptide;Translocase;Transmembrane;Transmembrane helix;Transport
Interact With
Induction
Subcellular Location SUBCELLULAR LOCATION: Mitochondrion inner membrane {ECO:0000269|PubMed:226365}; Single-pass membrane protein {ECO:0000250|UniProtKB:P08067}.
Modified Residue
Post Translational Modification PTM: Processed by both the mitochondrial processing peptidase (MPP) and the mitochondrial intermediate protease (MIP). Initially, MPP removes 25 amino acids from the newly imported precursor in the mitochondrial matrix. This proteolytic processing is then followed by a second proteolytic cleavage by MIP, which removes an octapeptide to generate mature-sized Rieske protein. {ECO:0000269|PubMed:3022944}.
Signal Peptide
Structure 3D
Cross Reference PDB -
Mapped Pubmed ID -
Motif
Gene Encoded By
Mass 24,771
Kinetics
Metal Binding METAL 174; /note=Iron-sulfur (2Fe-2S); /evidence=ECO:0000255|PROSITE-ProRule:PRU00628; METAL 176; /note=Iron-sulfur (2Fe-2S); via pros nitrogen; /evidence=ECO:0000255|PROSITE-ProRule:PRU00628; METAL 193; /note=Iron-sulfur (2Fe-2S); /evidence=ECO:0000255|PROSITE-ProRule:PRU00628; METAL 196; /note=Iron-sulfur (2Fe-2S); via pros nitrogen; /evidence=ECO:0000255|PROSITE-ProRule:PRU00628
Rhea ID RHEA:11484
Cross Reference Brenda