Reviewed,
UniProtKB/Swiss-Prot Q09545 (DHSB_CAEEL)
Last modified
November 25, 2008.
Version 70.
History...
Clusters with 100%,
90%,
50% identity |
Documents (3) |
Third-party data |
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Names and origin
| Protein names | Recommended name: Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial EC=1.3.5.1 Alternative name(s): Iron-sulfur subunit of complex II Short name=Ip | ||||
| Gene names |
| ||||
| Organism | Caenorhabditis elegans [Complete proteome] | ||||
| Taxonomic identifier | 6239 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Nematoda › Chromadorea › Rhabditida › Rhabditoidea › Rhabditidae › Peloderinae › Caenorhabditis |
Protein attributes
| Sequence length | 298 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Evidence at transcript level. |
General annotation (Comments)
| Function | Iron-sulfur protein (IP) subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q) By similarity. |
| Catalytic activity | Succinate + ubiquinone = fumarate + ubiquinol. |
| Cofactor | Binds 1 2Fe-2S cluster By similarity. Binds 1 3Fe-4S cluster By similarity. Binds 1 4Fe-4S cluster By similarity. |
| Pathway | |
| Subunit structure | Component of complex II composed of four subunits: a flavoprotein (FP), an iron-sulfur protein (IP), and a cytochrome b composed of a large and a small subunit By similarity. |
| Subcellular location | Mitochondrion inner membrane; Peripheral membrane protein; Matrix sideBy similarity. |
| Sequence similarities | Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family. Contains 1 2Fe-2S ferredoxin-type domain. Contains 1 4Fe-4S ferredoxin-type domain. |
Ontologies
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Transit peptide | 1 – ? | Mitochondrion Potential | |||||||
| Chain | ? – 298 | Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial | PRO_0000010354 | ||||||
Regions | |||||||||
| Domain | 59 – 147 | 89 | 2Fe-2S ferredoxin-type | ||||||
| Domain | 190 – 220 | 31 | 4Fe-4S ferredoxin-type | ||||||
Sites | |||||||||
| Metal binding | 107 | 1 | Iron-sulfur 1 (2Fe-2S) By similarity | ||||||
| Metal binding | 112 | 1 | Iron-sulfur 1 (2Fe-2S) By similarity | ||||||
| Metal binding | 115 | 1 | Iron-sulfur 1 (2Fe-2S) By similarity | ||||||
| Metal binding | 127 | 1 | Iron-sulfur 1 (2Fe-2S) By similarity | ||||||
| Metal binding | 200 | 1 | Iron-sulfur 2 (4Fe-4S) By similarity | ||||||
| Metal binding | 203 | 1 | Iron-sulfur 2 (4Fe-4S) By similarity | ||||||
| Metal binding | 206 | 1 | Iron-sulfur 2 (4Fe-4S) By similarity | ||||||
| Metal binding | 210 | 1 | Iron-sulfur 3 (3Fe-4S) By similarity | ||||||
| Metal binding | 257 | 1 | Iron-sulfur 3 (3Fe-4S) By similarity | ||||||
| Metal binding | 263 | 1 | Iron-sulfur 3 (3Fe-4S) By similarity | ||||||
| Metal binding | 267 | 1 | Iron-sulfur 2 (4Fe-4S) By similarity | ||||||
| Binding site | 215 | 1 | Ubiquinone; shared with DHSD By similarity | ||||||
Sequences
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References
| [1] | "Genome sequence of the nematode C. elegans: a platform for investigating biology." The C. elegans sequencing consortium Science 282:2012-2018(1998) [PubMed: 9851916] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Bristol N2. |
Cross-references
Sequence databases | |
|---|---|
| Z47809 Genomic DNA. Translation: CAA87780.1. | |
| PIR | T22083. |
| RefSeq | NP_495992.1. |
| UniGene | Cel.19522 |
3D structure databases | |
| HSSP | HSSP built from PDB template 1NEK based on UniProtKB P07014. |
| SMR | Q09545. Positions 51-287. |
| ModBase | Search... |
Genome annotation databases | |
| Ensembl | F42A8.2. Caenorhabditis elegans. [Contig view] |
| GeneID | 174482. |
| KEGG | cel:F42A8.2. |
Organism-specific databases | |
| WormBase | WBGene00006433. tag-55. |
| WormPep | F42A8.2. CE01579. [WorfDB] |
Gene expression databases | |
| ArrayExpress | Q09545. |
Family and domain databases | |
| InterPro | IPR006058. 2Fe2S_fd_BS. IPR001450. 4Fe4S_Fe_S_bd. IPR012675. b-grasp_ferredoxin-like. IPR001041. Ferredoxin. IPR012285. Fum_reductase_C. IPR004489. Succ_DHase/fum_Rdtase_Fe-S. [Graphical view] |
| Gene3D | G3DSA:3.10.20.30. Ferredoxin_fold. 1 hit. G3DSA:1.10.1060.10. Fum_reductase_C. 1 hit. |
| Pfam | PF00111. Fer2. 1 hit. [Graphical view] |
| TIGRFAMs | TIGR00384. dhsB. 1 hit. |
| PROSITE | PS00197. 2FE2S_FER_1. 1 hit. PS51085. 2FE2S_FER_2. 1 hit. PS00198. 4FE4S_FER_1. 1 hit. PS51379. 4FE4S_FER_2. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other Resources | |
| NextBio | 884224. |
Entry information
| Entry name | DHSB_CAEEL | ||||||||
| Accession | Primary (citable) accession number: Q09545 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | Caenorhabditis annotation project | ||||||||
Relevant documents
| Caenorhabditis elegans Caenorhabditis elegans: entries, gene names and cross-references to WormPep |
| PATHWAY comments Index of metabolic and biosynthesis pathways |
| SIMILARITY comments Index of protein domains and families |

Clusters with


