Q9RGZ1 · MRPE_ALKPO
- ProteinNa(+)/H(+) antiporter subunit E
- GenemrpE
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids158 (go to sequence)
- Protein existenceEvidence at protein level
- Annotation score3/5
Function
function
Mnh complex is a Na+Li+/H+ antiporter involved in Na+ and/or Li+ excretion and Na+ resistance. Na+/H+ antiport consumes a transmembrane electrical potential, and is thus inferred to be electrogenic. Does not transport K+, Ca2+ or Mg2+.
Mrp complex is a Na+/H+ antiporter involved in Na+ excretion and Na+ resistance.
Miscellaneous
Mrp-dependent antiport apparently occurs by a secondary, proton motive force-dependent mechanism, but the similarity of several Mrp proteins to membrane-embedded subunits of energy-coupled NADH dehydrogenase complexes raises the possibility that there is a capacity for electron transport that could provide a primary energy coupling option for Mrp functions.
GO annotations
all annotations | all molecular function | virus receptor activity | dna binding | rna binding | cytoskeletal motor activity | catalytic activity | gtpase activity | structural molecule activity | transporter activity | cytoskeletal protein binding | lipid binding | cyclase activity | antioxidant activity | oxidoreductase activity | transferase activity | hydrolase activity | lyase activity | isomerase activity | ligase activity | protein tag activity | cargo receptor activity | histone binding | protein folding chaperone | translation regulator activity | nutrient reservoir activity | receptor ligand activity | molecular transducer activity | molecular adaptor activity | toxin activity | cell adhesion mediator activity | molecular function regulator activity | virus coreceptor activity | catalytic activity, acting on a protein | catalytic activity, acting on dna | catalytic activity, acting on rna | molecular carrier activity | transcription regulator activity | general transcription initiation factor activity | molecular sensor activity | molecular sequestering activity | atp-dependent activity | other molecular function | all biological process | mitotic cell cycle | cytokinesis | cytoplasmic translation | immune system process | muscle system process | circulatory system process | renal system process | respiratory system process | carbohydrate metabolic process | generation of precursor metabolites and energy | dna replication | dna repair | dna recombination | chromatin organization | dna-templated transcription | regulation of dna-templated transcription | trna metabolic process | protein folding | protein glycosylation | amino acid metabolic process | modified amino acid metabolic process | lipid metabolic process | vitamin metabolic process | sulfur compound metabolic process | intracellular protein transport | nucleocytoplasmic transport | autophagy | inflammatory response | mitochondrion organization | cytoskeleton organization | microtubule-based movement | peroxisome organization | lysosome organization | chromosome segregation | cell adhesion | establishment or maintenance of cell polarity | programmed cell death | photosynthesis | mrna metabolic process | snrna metabolic process | vesicle-mediated transport | reproductive process | digestive system process | signaling | cell differentiation | protein catabolic process | extracellular matrix organization | regulatory ncrna-mediated gene silencing | telomere organization | cell junction organization | wound healing | ribosome biogenesis | cilium organization | anatomical structure development | cell motility | nervous system process | endocrine process | protein maturation | transmembrane transport | nucleobase-containing small molecule metabolic process | hepaticobiliary system process | membrane organization | protein-containing complex assembly | cell wall organization or biogenesis | nitrogen cycle metabolic process | protein localization to plasma membrane | defense response to other organism | detoxification | meiotic nuclear division | mitotic nuclear division | mitochondrial gene expression | carbohydrate derivative metabolic process | other biological process | all cellular component | nuclear chromosome | extracellular region | extracellular space | cell wall | nucleus | nuclear envelope | nucleoplasm | chromosome | nucleolus | mitochondrion | lysosome | endosome | vacuole | peroxisome | endoplasmic reticulum | golgi apparatus | lipid droplet | microtubule organizing center | cytosol | ribosome | cytoskeleton | plasma membrane | cilium | plastid | thylakoid | external encapsulating structure | extracellular matrix | cytoplasmic vesicle | organelle | other cellular component | |||
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Aspect | Term | |
---|---|---|
Cellular Component | plasma membrane | |
Molecular Function | antiporter activity | |
Molecular Function | monoatomic cation transmembrane transporter activity | |
Biological Process | proton transmembrane transport | |
Biological Process | sodium ion transport |
Keywords
- Biological process
- Ligand
Names & Taxonomy
Protein names
- Recommended nameNa(+)/H(+) antiporter subunit E
- Alternative names
Gene names
Organism names
- Strain
- Taxonomic lineageBacteria > Bacillati > Bacillota > Bacilli > Bacillales > Bacillaceae > Alkalihalophilus
Accessions
- Primary accessionQ9RGZ1
- Secondary accessions
Proteomes
Subcellular Location
UniProt Annotation
GO Annotation
Cell membrane ; Multi-pass membrane protein
Features
Showing features for transmembrane.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Transmembrane | 22-41 | Helical | |||
Transmembrane | 54-76 | Helical | |||
Keywords
- Cellular component
PTM/Processing
Features
Showing features for chain.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Chain | PRO_0000217093 | 1-158 | Na+/H+ antiporter subunit E | ||
Interaction
Subunit
Forms a heterooligomeric complex that consists of seven subunits: MrpA, MrpB, MrpC, MrpD, MrpE, MrpF and MrpG.
Protein-protein interaction databases
Structure
Sequence
- Sequence statusComplete
- Length158
- Mass (Da)18,356
- Last updated2000-05-01 v1
- MD5 Checksum6E66408FE70856B6545E50AD206C9CC7
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
AF097740 EMBL· GenBank· DDBJ | AAF21816.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
CP001878 EMBL· GenBank· DDBJ | ADC50689.1 EMBL· GenBank· DDBJ | Genomic DNA |