Q08509 (EPS8_MOUSE) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 120.
History...
Names·Attributes·General annotation·Ontologies·Interactions·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Interactions·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Epidermal growth factor receptor kinase substrate 8 | ||
| Gene names |
| ||
| Organism | Mus musculus (Mouse) [Reference proteome] | ||
| Taxonomic identifier | 10090 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Mus › Mus![]() |
Protein attributes
| Sequence length | 821 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Signaling adapter that controls various cellular protrusions by regulating actin cytoskeleton dynamics and architecture. Depending on its association with other signal transducers, can regulate different processes. Together with SOS1 and ABI1, forms a trimeric complex that participates in transduction of signals from Ras to Rac by activating the Rac-specific guanine nucleotide exchange factor (GEF) activity. Acts as a direct regulator of actin dynamics by binding actin filaments and has both barbed-end actin filament capping and actin bundling activities depending on the context. Displays barbed-end actin capping activity when associated with ABI1, thereby regulating actin-based motility process: capping activity is auto-inhibited and inhibition is relieved upon ABI1 interaction. Also shows actin bundling activity when associated with BAIAP2, enhancing BAIAP2-dependent membrane extensions and promoting filopodial protrusions. Involved in the regulation of processes such as axonal filopodia growth, stereocilia length, dendritic cell migration and cancer cell migration and invasion. Acts as a regulator of axonal filopodia formation in neurons: in the absence of neurotrophic factors, negatively regulates axonal filopodia formation via actin-capping activity. In contrast, it is phosphorylated in the presence of BDNF leading to inhibition of its actin-capping activity and stimulation of filopodia formation. Component of a complex with DFNB31 and MYO15A that localizes at stereocilia tips and is required for elongation of the stereocilia actin core. Indirectly involved in cell cycle progression; its degradation following ubiquitination being required during G2 phase to promote cell shape changes. Ref.1 Ref.5 Ref.6 Ref.8 Ref.9 Ref.11 Ref.12 Ref.13 Ref.14 |
| Subunit structure | Homodimer. Part of a complex consisting of ABI1, EPS8 and SOS1. Interacts with BAIAP2. Interacts with SHB and LANCL1. Interacts with EGFR; mediates EPS8 phosphorylation. Interacts with MYO15A and DFNB31. Ref.1 Ref.4 Ref.5 Ref.6 Ref.8 Ref.9 Ref.10 Ref.13 Ref.16 |
| Subcellular location | Cytoplasm › cell cortex. Cell projection › ruffle membrane. Cell projection › growth cone By similarity. Cell projection › stereocilium. Note: Localizes to the midzone of dividing cells. Ref.6 Ref.13 Ref.15 |
| Tissue specificity | Expressed in neuronal cell body and neurites, and prominently enriched in the axonal growth cone. Ref.11 |
| Domain | The effector region is required for activating the Rac-specific guanine nucleotide exchange factor (GEF) activity (Ref.6). It mediates both barbed-end actin capping and actin bundling activities (Ref.12). The capping activity is mediated by an amphipathic helix that binds within the hydrophobic pocket at the barbed ends of actin blocking further addition of actin monomers, while the bundling activity is mediated by a compact 4 helix bundle, which contacts 3 actin subunits along the filament (Ref.12). The SH3 domain mediates interaction with SHB By similarity. |
| Post-translational modification | Ubiquitinated by the SCF(FBXW5) E3 ubiquitin-protein ligase complex during G2 phase, leading to its transient degradation and subsequent cell shape changes required to allow mitotic progression. Reappears at the midzone of dividing cells. Ref.15 Phosphorylation at Ser-624 and Thr-628 by MAPK following BDNF treatment promotes removal from actin and filopodia formation. Phosphorylated by several receptor tyrosine kinases. Ref.1 Ref.11 |
| Disruption phenotype | No visible phenotype. Defects in PDGF-induced membrane ruffling due to defects in Ras to Rac signals. Dendritic cells are impaired in directional and chemotactic migration and are delayed in reaching the draining lymph node in vivo after inflammatory challenge. Mice show short stereocilia. Ref.5 Ref.13 Ref.14 |
| Sequence similarities | Belongs to the EPS8 family. Contains 1 PH domain. Contains 1 SH3 domain. |
Ontologies
Binary interactions
With | Entry | #Exp. | IntAct | Notes |
|---|---|---|---|---|
| ABI1 | Q8IZP0 | 2 | EBI-375596,EBI-375446 | From a different organism. |
| Abi1 | Q8CBW3 | 2 | EBI-375596,EBI-375511 | |
| BAIAP2 | Q9UQB8 | 8 | EBI-375596,EBI-525456 | From a different organism. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||||||||||||||
Molecule processing | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 821 | 821 | Epidermal growth factor receptor kinase substrate 8 | PRO_0000086995 | |||||||||||||||||
Regions | |||||||||||||||||||||
| Domain | 69 – 129 | 61 | PH; first part | ||||||||||||||||||
| Domain | 381 – 414 | 34 | PH; second part | ||||||||||||||||||
| Domain | 532 – 591 | 60 | SH3 | ||||||||||||||||||
| Region | 648 – 821 | 174 | Effector region | ||||||||||||||||||
| Region | 679 – 697 | 19 | Amphipathic helix | ||||||||||||||||||
| Region | 717 – 737 | 21 | Helix bundle 1 | ||||||||||||||||||
| Region | 751 – 756 | 6 | Helix bundle 2 | ||||||||||||||||||
| Region | 761 – 766 | 6 | Helix bundle 3 | ||||||||||||||||||
| Region | 765 – 784 | 20 | Helix bundle 4 | ||||||||||||||||||
| Compositional bias | 210 – 213 | 4 | Poly-Pro | ||||||||||||||||||
| Compositional bias | 322 – 325 | 4 | Poly-Pro | ||||||||||||||||||
| Compositional bias | 421 – 440 | 20 | Pro-rich | ||||||||||||||||||
| Compositional bias | 620 – 650 | 31 | Pro-rich | ||||||||||||||||||
| Compositional bias | 658 – 663 | 6 | Poly-Ser | ||||||||||||||||||
Amino acid modifications | |||||||||||||||||||||
| Modified residue | 475 | 1 | Phosphoserine By similarity | ||||||||||||||||||
| Modified residue | 624 | 1 | Phosphoserine; by MAPK Ref.11 | ||||||||||||||||||
| Modified residue | 628 | 1 | Phosphothreonine; by MAPK Ref.11 | ||||||||||||||||||
Experimental info | |||||||||||||||||||||
| Mutagenesis | 624 | 1 | S → A: Does not detach from actin following BDNF treatment; when associated with A-628. Ref.11 | ||||||||||||||||||
| Mutagenesis | 624 | 1 | S → E: Mimicks phosphorylation state; promotes detachment from actin in absence of BDNF treatment; when associated with E-628. Ref.11 | ||||||||||||||||||
| Mutagenesis | 628 | 1 | T → A: Does not detach from actin following BDNF treatment; when associated with A-624. Ref.11 | ||||||||||||||||||
| Mutagenesis | 628 | 1 | T → E: Mimicks phosphorylation state; promotes detachment from actin in absence of BDNF treatment; when associated with E-624. Ref.11 | ||||||||||||||||||
| Mutagenesis | 689 | 1 | V → D: Abolishes barbed-end actin-binding without affecting actin bundling activity. Ref.12 | ||||||||||||||||||
| Mutagenesis | 693 | 1 | L → D: Abolishes barbed-end actin-binding without affecting actin bundling activity. Ref.12 | ||||||||||||||||||
| Mutagenesis | 706 | 1 | R → A: Impairs both actin capping and bundling activities. Ref.12 | ||||||||||||||||||
| Mutagenesis | 708 | 1 | F → A: Impairs both actin capping and bundling activities. Ref.12 | ||||||||||||||||||
| Sequence conflict | 652 | 1 | N → D in AAA16358. Ref.1 | ||||||||||||||||||
| Sequence conflict | 652 | 1 | N → D in AAH16890. Ref.3 | ||||||||||||||||||
Secondary structure | |||||||||||||||||||||
Helix Strand Turn | |||||||||||||||||||||
| Beta strand | 534 – 539 | 6 | |||||||||||||||||||
| Beta strand | 556 – 559 | 4 | |||||||||||||||||||
| Helix | 561 – 563 | 3 | |||||||||||||||||||
| Beta strand | 566 – 570 | 5 | |||||||||||||||||||
| Beta strand | 576 – 580 | 5 | |||||||||||||||||||
| Helix | 581 – 583 | 3 | |||||||||||||||||||
| Beta strand | 584 – 587 | 4 | |||||||||||||||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Eps8, a substrate for the epidermal growth factor receptor kinase, enhances EGF-dependent mitogenic signals." Fazioli F., Minichiello L., Matoska V., Castagnino P., Miki T., Wong W.T., di Fiore P.P. EMBO J. 12:3799-3808(1993) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA], FUNCTION IN CELL GROWTH, INTERACTION WITH EGFR, PHOSPHORYLATION. |
| [2] | "The transcriptional landscape of the mammalian genome." Carninci P., Kasukawa T., Katayama S., Gough J., Frith M.C., Maeda N., Oyama R., Ravasi T., Lenhard B., Wells C., Kodzius R., Shimokawa K., Bajic V.B., Brenner S.E., Batalov S., Forrest A.R., Zavolan M., Davis M.J. Hayashizaki Y.Science 309:1559-1563(2005) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Strain: C57BL/6J. Tissue: Bone marrow and Lung. |
| [3] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Strain: FVB/N. Tissue: Kidney. |
| [4] | "Molecular interactions of the Src homology 2 domain protein Shb with phosphotyrosine residues, tyrosine kinase receptors and Src homology 3 domain proteins." Karlsson T., Songyang Z., Landgren E., Lavergne C., Di Fiore P.P., Anafi M., Pawson T., Cantley L.C., Claesson-Welsh L., Welsh M. Oncogene 10:1475-1483(1995) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH SHB. |
| [5] | "EPS8 and E3B1 transduce signals from Ras to Rac." Scita G., Nordstrom J., Carbone R., Tenca P., Giardina G., Gutkind S., Bjarnegard M., Betsholtz C., Di Fiore P.P. Nature 401:290-293(1999) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, IDENTIFICATION IN A COMPLEX WITH ABI1 AND SOS1, DISRUPTION PHENOTYPE. |
| [6] | "An effector region in Eps8 is responsible for the activation of the Rac-specific GEF activity of Sos-1 and for the proper localization of the Rac-based actin-polymerizing machine." Scita G., Tenca P., Areces L.B., Tocchetti A., Frittoli E., Giardina G., Ponzanelli I., Sini P., Innocenti M., Di Fiore P.P. J. Cell Biol. 154:1031-1044(2001) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, SUBCELLULAR LOCATION, INTERACTION WITH SOS1. |
| [7] | "Eps8 in the midst of GTPases." Di Fiore P.P., Scita G. Int. J. Biochem. Cell Biol. 34:1178-1183(2002) [PubMed] [Europe PMC] [Abstract] Cited for: REVIEW ON FUNCTION. |
| [8] | "Eps8 controls actin-based motility by capping the barbed ends of actin filaments." Disanza A., Carlier M.F., Stradal T.E., Didry D., Frittoli E., Confalonieri S., Croce A., Wehland J., Di Fiore P.P., Scita G. Nat. Cell Biol. 6:1180-1188(2004) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, INTERACTION WITH ABI1. |
| [9] | "Regulation of cell shape by Cdc42 is mediated by the synergic actin-bundling activity of the Eps8-IRSp53 complex." Disanza A., Mantoani S., Hertzog M., Gerboth S., Frittoli E., Steffen A., Berhoerster K., Kreienkamp H.J., Milanesi F., Di Fiore P.P., Ciliberto A., Stradal T.E., Scita G. Nat. Cell Biol. 8:1337-1347(2006) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, INTERACTION WITH BAIAP2. |
| [10] | "Structure of human lanthionine synthetase C-like protein 1 and its interaction with Eps8 and glutathione." Zhang W., Wang L., Liu Y., Xu J., Zhu G., Cang H., Li X., Bartlam M., Hensley K., Li G., Rao Z., Zhang X.C. Genes Dev. 23:1387-1392(2009) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH LANCL1. |
| [11] | "Eps8 regulates axonal filopodia in hippocampal neurons in response to brain-derived neurotrophic factor (BDNF)." Menna E., Disanza A., Cagnoli C., Schenk U., Gelsomino G., Frittoli E., Hertzog M., Offenhauser N., Sawallisch C., Kreienkamp H.J., Gertler F.B., Di Fiore P.P., Scita G., Matteoli M. PLoS Biol. 7:E1000138-E1000138(2009) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, TISSUE SPECIFICITY, PHOSPHORYLATION AT SER-624 AND THR-628, MUTAGENESIS OF SER-624 AND THR-628. |
| [12] | "Molecular basis for the dual function of Eps8 on actin dynamics: bundling and capping." Hertzog M., Milanesi F., Hazelwood L., Disanza A., Liu H., Perlade E., Malabarba M.G., Pasqualato S., Maiolica A., Confalonieri S., Le Clainche C., Offenhauser N., Block J., Rottner K., Di Fiore P.P., Carlier M.F., Volkmann N., Hanein D., Scita G. PLoS Biol. 8:E1000387-E1000387(2010) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, MUTAGENESIS OF VAL-689; LEU-693; ARG-706 AND PHE-708. |
| [13] | "Regulation of stereocilia length by myosin XVa and whirlin depends on the actin-regulatory protein Eps8." Manor U., Disanza A., Grati M., Andrade L., Lin H., Di Fiore P.P., Scita G., Kachar B. Curr. Biol. 21:167-172(2011) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, INTERACTION WITH MYO15A AND DFNB31, SUBCELLULAR LOCATION, DISRUPTION PHENOTYPE. |
| [14] | "The signaling adaptor Eps8 is an essential actin capping protein for dendritic cell migration." Frittoli E., Matteoli G., Palamidessi A., Mazzini E., Maddaluno L., Disanza A., Yang C., Svitkina T., Rescigno M., Scita G. Immunity 35:388-399(2011) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, DISRUPTION PHENOTYPE. |
| [15] | "SCF(Fbxw5) mediates transient degradation of actin remodeller Eps8 to allow proper mitotic progression." Werner A., Disanza A., Reifenberger N., Habeck G., Becker J., Calabrese M., Urlaub H., Lorenz H., Schulman B., Scita G., Melchior F. Nat. Cell Biol. 15:179-188(2013) [PubMed] [Europe PMC] [Abstract] Cited for: SUBCELLULAR LOCATION, UBIQUITINATION. |
| [16] | "The SH3 domain of Eps8 exists as a novel intertwined dimer." Kishan K.V.R., Scita G., Wong W.T., di Fiore P.P., Newcomer M.E. Nat. Struct. Biol. 4:739-743(1997) [PubMed] [Europe PMC] [Abstract] Cited for: X-RAY CRYSTALLOGRAPHY (1.5 ANGSTROMS) OF 532-591, HOMODIMERIZATION. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EMBL GenBank DDBJ | L21671 mRNA. Translation: AAA16358.1. AK149683 mRNA. Translation: BAE29023.1. AK166156 mRNA. Translation: BAE38601.1. BC016890 mRNA. Translation: AAH16890.1. | ||||||||||||||||||||||||
| IPI | IPI00622390. | ||||||||||||||||||||||||
| PIR | S39983. | ||||||||||||||||||||||||
| RefSeq | NP_001258516.1. NM_001271587.1. NP_001258517.1. NM_001271588.1. NP_001258518.1. NM_001271589.1. NP_001258524.1. NM_001271595.1. NP_031971.2. NM_007945.3. | ||||||||||||||||||||||||
| UniGene | Mm.235346. | ||||||||||||||||||||||||
3D structure databases | |||||||||||||||||||||||||
| PDBe RCSB PDB PDBj |
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| ProteinModelPortal | Q08509. | ||||||||||||||||||||||||
| SMR | Q08509. Positions 59-188, 532-590, 698-783. | ||||||||||||||||||||||||
| ModBase | Search... | ||||||||||||||||||||||||
Protein-protein interaction databases | |||||||||||||||||||||||||
| DIP | DIP-32858N. | ||||||||||||||||||||||||
| IntAct | Q08509. 3 interactions. | ||||||||||||||||||||||||
PTM databases | |||||||||||||||||||||||||
| PhosphoSite | Q08509. | ||||||||||||||||||||||||
Proteomic databases | |||||||||||||||||||||||||
| PaxDb | Q08509. | ||||||||||||||||||||||||
| PRIDE | Q08509. | ||||||||||||||||||||||||
Protocols and materials databases | |||||||||||||||||||||||||
| StructuralBiologyKnowledgebase | Search... | ||||||||||||||||||||||||
Genome annotation databases | |||||||||||||||||||||||||
| Ensembl | ENSMUST00000058210; ENSMUSP00000052776; ENSMUSG00000015766. ENSMUST00000100841; ENSMUSP00000098402; ENSMUSG00000015766. ENSMUST00000111878; ENSMUSP00000107509; ENSMUSG00000015766. | ||||||||||||||||||||||||
| GeneID | 13860. | ||||||||||||||||||||||||
| KEGG | mmu:13860. | ||||||||||||||||||||||||
Organism-specific databases | |||||||||||||||||||||||||
| CTD | 2059. | ||||||||||||||||||||||||
| MGI | MGI:104684. Eps8. | ||||||||||||||||||||||||
Phylogenomic databases | |||||||||||||||||||||||||
| eggNOG | NOG263108. | ||||||||||||||||||||||||
| GeneTree | ENSGT00390000003646. | ||||||||||||||||||||||||
| HOGENOM | HOG000060324. | ||||||||||||||||||||||||
| HOVERGEN | HBG003090. | ||||||||||||||||||||||||
| InParanoid | Q3TM41. | ||||||||||||||||||||||||
| OMA | PEDVKTW. | ||||||||||||||||||||||||
| OrthoDB | EOG42V8FP. | ||||||||||||||||||||||||
Gene expression databases | |||||||||||||||||||||||||
| ArrayExpress | Q08509. | ||||||||||||||||||||||||
| Bgee | Q08509. | ||||||||||||||||||||||||
| Genevestigator | Q08509. | ||||||||||||||||||||||||
| GermOnline | ENSMUSG00000015766. Mus musculus. | ||||||||||||||||||||||||
Family and domain databases | |||||||||||||||||||||||||
| Gene3D | 2.30.29.30. 1 hit. | ||||||||||||||||||||||||
| InterPro | IPR011993. PH_like_dom. IPR013625. PTB. IPR006020. PTyr_interaction_dom. IPR001452. SH3_domain. [Graphical view] | ||||||||||||||||||||||||
| Pfam | PF08416. PTB. 1 hit. PF00018. SH3_1. 1 hit. [Graphical view] | ||||||||||||||||||||||||
| SMART | SM00462. PTB. 1 hit. SM00326. SH3. 1 hit. [Graphical view] | ||||||||||||||||||||||||
| SUPFAM | SSF50044. SH3. 1 hit. | ||||||||||||||||||||||||
| PROSITE | PS50003. PH_DOMAIN. False negative. PS50002. SH3. 1 hit. [Graphical view] | ||||||||||||||||||||||||
| ProtoNet | Search... | ||||||||||||||||||||||||
Other | |||||||||||||||||||||||||
| ChiTaRS | EPS8. mouse. | ||||||||||||||||||||||||
| EvolutionaryTrace | Q08509. | ||||||||||||||||||||||||
| NextBio | 284742. | ||||||||||||||||||||||||
| SOURCE | Search... | ||||||||||||||||||||||||
Entry information
| Entry name | EPS8_MOUSE | ||||||||
| Accession | Primary (citable) accession number: Q08509 Secondary accession number(s): Q3TM41 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| MGD cross-references Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot |
| PDB cross-references Index of Protein Data Bank (PDB) cross-references |
| SIMILARITY comments Index of protein domains and families |

Clusters with
