Reviewed,
UniProtKB/Swiss-Prot P34944 (NDUS3_MARPO)
Last modified
February 9, 2010.
Version 66.
History...
Clusters with 100%,
90%,
50% identity |
Documents (1) |
Third-party data |
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Names and origin
| Protein names | Recommended name: NADH-ubiquinone oxidoreductase 27 kDa subunit EC=1.6.5.3 EC=1.6.99.3 Alternative name(s): Complex I-27kD Short name=CI-27kD NADH dehydrogenase subunit 9 | ||
| Gene names |
| ||
| Encoded on | Mitochondrion | ||
| Organism | Marchantia polymorpha (Liverwort) | ||
| Taxonomic identifier | 3197 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Marchantiophyta › Superclass II › Marchantiopsida › Marchantiidae › Marchantiales › Marchantiaceae › Marchantia |
Protein attributes
| Sequence length | 195 AA. |
| Sequence status | Complete. |
| Protein existence | Inferred from homology. |
General annotation (Comments)
| Function | Core subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I) that is believed to belong to the minimal assembly required for catalysis. Complex I functions in the transfer of electrons from NADH to the respiratory chain. The immediate electron acceptor for the enzyme is believed to be ubiquinone By similarity. |
| Catalytic activity | NADH + ubiquinone = NAD+ + ubiquinol. NADH + acceptor = NAD+ + reduced acceptor. |
| Subunit structure | Complex I is composed of about 30 different subunits. |
| Subcellular location | |
| Sequence similarities | Belongs to the complex I 30 kDa subunit family. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Electron transport Respiratory chain Transport |
| Cellular component | Membrane Mitochondrion Mitochondrion inner membrane |
| Ligand | NAD Ubiquinone |
| Molecular function | Oxidoreductase |
| Gene Ontology (GO) | |
| Biological process | electron transport chain Inferred from electronic annotation. Source: UniProtKB-KW transportInferred from electronic annotation. Source: UniProtKB-KW |
| Cellular component | mitochondrial inner membrane Inferred from electronic annotation. Source: UniProtKB-SubCell respiratory chainInferred from electronic annotation. Source: UniProtKB-KW |
| Molecular function | NADH dehydrogenase (ubiquinone) activity Inferred from electronic annotation. Source: EC |
| Complete GO annotation... | |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||
Molecule processing | |||||||
|---|---|---|---|---|---|---|---|
| Chain | 1 – 195 | 195 | NADH-ubiquinone oxidoreductase 27 kDa subunit | PRO_0000118641 | |||
Sequences
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References
| [1] | "Gene organization deduced from the complete sequence of liverwort Marchantia polymorpha mitochondrial DNA. A primitive form of plant mitochondrial genome." Oda K., Yamato K., Ohta E., Nakamura Y., Takemura M., Nozato N., Akashi K., Kanegae T., Ogura Y., Kohchi T., Ohyama K. J. Mol. Biol. 223:1-7(1992) [PubMed: 1731062] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | M68929 Genomic DNA. Translation: AAC09443.1. Different initiation. |
| PIR | S25996. |
| RefSeq | NP_054446.1. |
3D structure databases | |
| SMR | P34944. Positions 31-188. |
| ModBase | Search... |
Genome annotation databases | |
| GeneID | 2948426. |
Enzyme and pathway databases | |
| BRENDA | 1.6.5.3. 96730. 1.6.99.3. 96730. |
Family and domain databases | |
| InterPro | IPR010218. NADH_DH_csu. IPR001268. NADH_UbQ_OxRdtase_30kDa_su. IPR020396. NADH_UbQ_OxRdtase_CS. [Graphical view] |
| Pfam | PF00329. Complex1_30kDa. 1 hit. [Graphical view] |
| ProDom | PD001581. NADH_UbQ_OxRdtase_30kDa_su. 1 hit. [Graphical view] [Entries sharing at least one domain] |
| TIGRFAMs | TIGR01961. NuoC_fam. 1 hit. |
| PROSITE | PS00542. COMPLEX1_30K. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Entry information
| Entry name | NDUS3_MARPO | ||||||||
| Accession | Primary (citable) accession number: P34944 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | PPAP (Plant Proteome Annotation Project) | ||||||||

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