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IPR014349 is a Rieske iron-sulphur protein.
<p>The Rieske subunit can be found in the Ubiquinol-cytochrome c reductase (bc1 complex or complex III) or the cytochrome b6f complex. The Rieske subunit acts by binding either a ubiquinol or plastoquinol anion, transferring an electron to the 2Fe-2S cluster, then releasing the electron to the cytochrome c or cytochrome f haem iron [[cite:PUB00001341], [cite:PUB00004558]]. The 2Fe-2S cluster is bound in the highly conserved C-terminal region of the Rieske subunit.</p> <p>Ubiquinol-cytochrome c reductase (bc1 complex or complex III) is an enzyme complex of bacterial and mitochondrial oxidative phosphorylation systems. It catalyses the oxidoreduction of the mobile redox components ubiquinol and cytochrome c, generating an electrochemical potential which is linked to ATP synthesis [[cite:PUB00001341], [cite:PUB00001342]].The complex consists of three subunits in most bacteria, and nine in mitochondria: both bacterial and mitochondrial complexes contain cytochrome b and cytochrome c1 subunits, and an iron-sulphur `Rieske' subunit, which contains a high potential 2Fe-2S cluster [[cite:PUB00002441]]. The mitochondrial form also includes six other subunits that do not possess redox centres.</p> <p>The plant cytochrome b6f is located in the thylakoid membrane and functions in both linear and cyclic electron transport, providing ATP and NADPH for photosynthetic carbon fixation. The cytochrome b6f complex has eight different subunits, six being encoded in the chloroplast genome (PetA [cyt f], PetB [cyt b6], PetD, PetG, PetL, and PetN) and two in the nucleus (PetC [Rieske FeS] and PetM. The complex functions as a dimer [[cite:PUB00093900]]. In cyanobacteria, the cytochrome b6f complex contains four large subunits, including cytochrome f, cytochrome b6, the Rieske iron-sulfur protein (ISP), and subunit IV; as well as four small hydrophobic subunits, PetG, PetL, PetM, and PetN [[cite:PUB00032072]].</p> <p>Proteins in this entry also include arsenite oxidase subunit AioB from Alcaligenes faecalis. It is involved in the detoxification of arsenic [[cite:PUB00025173]].</p>
This description is obtained from EB-eye REST.
GO predictions are based solely on the InterPro-to-GO mappings published by EMBL-EBI, which are in turn based on the mapping of predicted domains to the InterPro dataset. The InterPro-to-GO mapping was last updated on , while the GO metadata was last updated on .
| GO term | Namespace | Name | Definition | Relationships |
|---|---|---|---|---|
| Molecular function | Oxidoreductase activity, acting on diphenols and related substances as donors | Catalysis of an oxidation-reduction (redox) reaction in which a diphenol or related substance acts as a hydrogen or electron donor and reduces a hydrogen or electron acceptor. | ||
| Biological process | 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. |
| Transcript | Name | Description | Predicted domains | Domain count |
|---|---|---|---|---|
| – | Ubiquinol-cytochrome c reductase iron-sulfur subunit [Medicago truncatula] gi|357508447|ref|XP_003624512.1| | 22 | ||
| – | PREDICTED: cytochrome b6-f complex iron-sulfur subunit, chloroplastic-like [Glycine max] gi|356549980|ref|XP_003543368.1| | 19 | ||
| – | Cytochrome b-c1 complex subunit Rieske, mitochondrial; TAIR: AT5G13430.1 Ubiquinol-cytochrome C reductase iron-sulfur subunit; Swiss-Prot: sp|P49727|UCRI_MAIZE Cytochrome b-c1 complex subunit Rieske, mitochondrial; TrEMBL-Plants: tr|I3SAX8|I3SAX8_LOTJA Cytochrome b-c1 complex subunit Rieske, mitochondrial; Found in the gene: LotjaGi1g1v0633700 | 22 | ||
| – | Cytochrome b-c1 complex subunit Rieske, mitochondrial; TAIR: AT5G13440.1 Ubiquinol-cytochrome C reductase iron-sulfur subunit; Swiss-Prot: sp|P51132|UCRI2_TOBAC Cytochrome b-c1 complex subunit Rieske-2, mitochondrial; TrEMBL-Plants: tr|A0A0L9T7J6|A0A0L9T7J6_PHAAN Cytochrome b-c1 complex subunit Rieske, mitochondrial; Found in the gene: LotjaGi2g1v0104600 | 25 | ||
| – | Cytochrome b6-f complex iron-sulfur subunit; TAIR: AT4G03280.1 photosynthetic electron transfer C; Swiss-Prot: sp|P26291|UCRIA_PEA Cytochrome b6-f complex iron-sulfur subunit, chloroplastic; TrEMBL-Plants: tr|I3RZ73|I3RZ73_LOTJA Cytochrome b6-f complex iron-sulfur subunit; Found in the gene: LotjaGi2g1v0183500_LC | 6 | ||
| – | Cytochrome b6-f complex iron-sulfur subunit; TAIR: AT4G03280.1 photosynthetic electron transfer C; Swiss-Prot: sp|P26291|UCRIA_PEA Cytochrome b6-f complex iron-sulfur subunit, chloroplastic; TrEMBL-Plants: tr|I3RZ73|I3RZ73_LOTJA Cytochrome b6-f complex iron-sulfur subunit; Found in the gene: LotjaGi2g1v0183500_LC | 6 | ||
| – | Cytochrome b6-f complex iron-sulfur subunit; TAIR: AT4G03280.1 photosynthetic electron transfer C; Swiss-Prot: sp|P26291|UCRIA_PEA Cytochrome b6-f complex iron-sulfur subunit, chloroplastic; TrEMBL-Plants: tr|I3RZ73|I3RZ73_LOTJA Cytochrome b6-f complex iron-sulfur subunit; Found in the gene: LotjaGi2g1v0183500_LC | 6 | ||
| – | Cytochrome b6-f complex iron-sulfur subunit; TAIR: AT4G03280.1 photosynthetic electron transfer C; Swiss-Prot: sp|P26291|UCRIA_PEA Cytochrome b6-f complex iron-sulfur subunit, chloroplastic; TrEMBL-Plants: tr|I3RZ73|I3RZ73_LOTJA Cytochrome b6-f complex iron-sulfur subunit; Found in the gene: LotjaGi2g1v0183500_LC | 6 | ||
| – | Cytochrome b6-f complex iron-sulfur subunit; TAIR: AT4G03280.1 photosynthetic electron transfer C; Swiss-Prot: sp|P26291|UCRIA_PEA Cytochrome b6-f complex iron-sulfur subunit, chloroplastic; TrEMBL-Plants: tr|I3RZ73|I3RZ73_LOTJA Cytochrome b6-f complex iron-sulfur subunit; Found in the gene: LotjaGi2g1v0183500_LC | 6 | ||
| – | Cytochrome b6-f complex iron-sulfur subunit; TAIR: AT4G03280.1 photosynthetic electron transfer C; Swiss-Prot: sp|P26291|UCRIA_PEA Cytochrome b6-f complex iron-sulfur subunit, chloroplastic; TrEMBL-Plants: tr|I3RZ73|I3RZ73_LOTJA Cytochrome b6-f complex iron-sulfur subunit; Found in the gene: LotjaGi3g1v0438600 | 20 | ||
| – | Cytochrome b6-f complex iron-sulfur subunit; TAIR: AT4G03280.1 photosynthetic electron transfer C; Swiss-Prot: sp|P26291|UCRIA_PEA Cytochrome b6-f complex iron-sulfur subunit, chloroplastic; TrEMBL-Plants: tr|I3RZ73|I3RZ73_LOTJA Cytochrome b6-f complex iron-sulfur subunit; Found in the gene: LotjaGi3g1v0438600 | 20 |
A list of co-occurring predicted domains within the L. japonicus gene space:
| Predicted domain | Source | Observations | Saturation (%) |
|---|---|---|---|
| cd03471 | CDD | 1 | 9.09 |