Q12929 (EPS8_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 115.
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 |
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| Organism | Homo sapiens (Human) [Reference proteome] | ||
| Taxonomic identifier | 9606 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo![]() |
Protein attributes
| Sequence length | 822 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.9 Ref.11 |
| Subunit structure | Homodimer. Part of a complex consisting of ABI1, EPS8 and SOS1. Interacts with MYO15A and DFNB31. Interacts with LANCL1 By similarity. Interacts with EGFR; mediates EPS8 phosphorylation By similarity. Interacts with BAIAP2. Interacts with SHB. Ref.6 Ref.8 |
| Subcellular location | Cytoplasm › cell cortex By similarity. Cell projection › ruffle membrane By similarity. Cell projection › growth cone By similarity. Cell projection › stereocilium By similarity. Note: Localizes to the midzone of dividing cells By similarity. |
| Tissue specificity | Expressed in all tissues analyzed, including heart, brain, placenta, lung, liver, skeletal muscle, kidney and pancreas. Expressed in all epithelial and fibroblastic lines examined and in some, but not all, hematopoietic cells. |
| Domain | The effector region is required for activating the Rac-specific guanine nucleotide exchange factor (GEF) activity. It mediates both barbed-end actin capping and actin bundling activities. 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 By similarity. The SH3 domain mediates interaction with SHB. |
| 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 By similarity. Phosphorylation at Ser-625 and Thr-629 by MAPK following BDNF treatment promotes removal from actin and filopodia formation By similarity. Phosphorylated by several receptor tyrosine kinases. |
| Involvement in disease | Defects in EPS8 are associated with some cancers, such as pancreatic, oral squamous cell carcinomas or pituitary cancers. Contributes to cell transformation in response to growth factor treatment and is overexpressed in a number of tumors, indicating that EPS8 levels must be tightly regulated. |
| Sequence similarities | Belongs to the EPS8 family. Contains 1 PH domain. Contains 1 SH3 domain. |
Ontologies
Binary interactions
With | Entry | #Exp. | IntAct | Notes |
|---|---|---|---|---|
| ALDH7A1 | P49419 | 2 | EBI-375576,EBI-726842 | |
| BAIAP2 | Q9UQB8 | 4 | EBI-375576,EBI-525456 |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||||||||||||||
Molecule processing | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 822 | 822 | Epidermal growth factor receptor kinase substrate 8 | PRO_0000086994 | |||||||||||||||||
Regions | |||||||||||||||||||||
| Domain | 69 – 129 | 61 | PH; first part | ||||||||||||||||||
| Domain | 381 – 414 | 34 | PH; second part | ||||||||||||||||||
| Domain | 531 – 590 | 60 | SH3 | ||||||||||||||||||
| Region | 649 – 822 | 174 | Effector region By similarity | ||||||||||||||||||
| Region | 680 – 698 | 19 | Amphipathic helix By similarity | ||||||||||||||||||
| Region | 718 – 738 | 21 | Helix bundle 1 By similarity | ||||||||||||||||||
| Region | 752 – 757 | 6 | Helix bundle 2 By similarity | ||||||||||||||||||
| Region | 762 – 767 | 6 | Helix bundle 3 By similarity | ||||||||||||||||||
| Region | 766 – 785 | 20 | Helix bundle 4 By similarity | ||||||||||||||||||
| Compositional bias | 421 – 440 | 20 | Pro-rich | ||||||||||||||||||
| Compositional bias | 615 – 651 | 37 | Pro-rich | ||||||||||||||||||
| Compositional bias | 659 – 664 | 6 | Poly-Ser | ||||||||||||||||||
Amino acid modifications | |||||||||||||||||||||
| Modified residue | 476 | 1 | Phosphoserine Ref.14 | ||||||||||||||||||
| Modified residue | 625 | 1 | Phosphoserine; by MAPK By similarity | ||||||||||||||||||
| Modified residue | 629 | 1 | Phosphothreonine; by MAPK By similarity | ||||||||||||||||||
Natural variations | |||||||||||||||||||||
| Natural variant | 761 | 1 | D → E. Corresponds to variant rs7137185 [ dbSNP | Ensembl ]. | VAR_050971 | |||||||||||||||||
| Natural variant | 806 | 1 | A → S. Corresponds to variant rs1802658 [ dbSNP | Ensembl ]. | VAR_050972 | |||||||||||||||||
Experimental info | |||||||||||||||||||||
| Sequence conflict | 73 | 1 | F → S in BAF84466. Ref.2 | ||||||||||||||||||
| Sequence conflict | 128 | 1 | F → S in BAF84466. Ref.2 | ||||||||||||||||||
| Sequence conflict | 194 | 1 | R → G in BAF84466. Ref.2 | ||||||||||||||||||
| Sequence conflict | 205 | 1 | A → S in BAF85620. Ref.2 | ||||||||||||||||||
| Sequence conflict | 497 | 1 | I → V in BAF85620. Ref.2 | ||||||||||||||||||
| Sequence conflict | 631 | 1 | A → V in AAH30010. Ref.5 | ||||||||||||||||||
| Sequence conflict | 705 | 1 | A → T in BAF85620. Ref.2 | ||||||||||||||||||
Secondary structure | |||||||||||||||||||||
Helix Strand Turn | |||||||||||||||||||||
| Helix | 729 – 737 | 9 | |||||||||||||||||||
| Helix | 741 – 746 | 6 | |||||||||||||||||||
| Beta strand | 748 – 750 | 3 | |||||||||||||||||||
| Helix | 752 – 757 | 6 | |||||||||||||||||||
| Helix | 760 – 766 | 7 | |||||||||||||||||||
| Helix | 770 – 784 | 15 | |||||||||||||||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Evolutionary conservation of the EPS8 gene and its mapping to human chromosome 12q23-q24." Wong W.T., Carlomagno F., Druck T., Barletta C., Croce C.M., Huebner K., Kraus M.H., di Fiore P.P. Oncogene 9:3057-3061(1994) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. |
| [2] | "Complete sequencing and characterization of 21,243 full-length human cDNAs." Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S. Sugano S.Nat. Genet. 36:40-45(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Tissue: Placenta and Trachea. |
| [3] | "The finished DNA sequence of human chromosome 12." Scherer S.E., Muzny D.M., Buhay C.J., Chen R., Cree A., Ding Y., Dugan-Rocha S., Gill R., Gunaratne P., Harris R.A., Hawes A.C., Hernandez J., Hodgson A.V., Hume J., Jackson A., Khan Z.M., Kovar-Smith C., Lewis L.R. Gibbs R.A.Nature 440:346-351(2006) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [4] | Mural R.J., Istrail S., Sutton G.G., Florea L., Halpern A.L., Mobarry C.M., Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., Turner R. Venter J.C.Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [5] | "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]. Tissue: Brain. |
| [6] | "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. |
| [7] | "Overexpression of p97Eps8 leads to cellular transformation: implication of pleckstrin homology domain in p97Eps8-mediated ERK activation." Maa M.C., Hsieh C.Y., Leu T.H. Oncogene 20:106-112(2001) [PubMed] [Europe PMC] [Abstract] Cited for: INVOLVEMENT IN CANCER. |
| [8] | "IRSp53/Eps8 complex is important for positive regulation of Rac and cancer cell motility/invasiveness." Funato Y., Terabayashi T., Suenaga N., Seiki M., Takenawa T., Miki H. Cancer Res. 64:5237-5244(2004) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH BAIAP2. |
| [9] | "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. |
| [10] | "Global, in vivo, and site-specific phosphorylation dynamics in signaling networks." Olsen J.V., Blagoev B., Gnad F., Macek B., Kumar C., Mortensen P., Mann M. Cell 127:635-648(2006) [PubMed] [Europe PMC] [Abstract] Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. Tissue: Cervix carcinoma. |
| [11] | "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. |
| [12] | "Eps8 is increased in pancreatic cancer and required for dynamic actin-based cell protrusions and intercellular cytoskeletal organization." Welsch T., Endlich K., Giese T., Buchler M.W., Schmidt J. Cancer Lett. 255:205-218(2007) [PubMed] [Europe PMC] [Abstract] Cited for: INVOLVEMENT IN CANCER. |
| [13] | "Eps8 decreases chemosensitivity and affects survival of cervical cancer patients." Chen Y.J., Shen M.R., Chen Y.J., Maa M.C., Leu T.H. Mol. Cancer Ther. 7:1376-1385(2008) [PubMed] [Europe PMC] [Abstract] Cited for: INVOLVEMENT IN CANCER. |
| [14] | "A quantitative atlas of mitotic phosphorylation." Dephoure N., Zhou C., Villen J., Beausoleil S.A., Bakalarski C.E., Elledge S.J., Gygi S.P. Proc. Natl. Acad. Sci. U.S.A. 105:10762-10767(2008) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-476, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [15] | "Role for EPS8 in squamous carcinogenesis." Wang H., Patel V., Miyazaki H., Gutkind J.S., Yeudall W.A. Carcinogenesis 30:165-174(2009) [PubMed] [Europe PMC] [Abstract] Cited for: INVOLVEMENT IN CANCER. |
| [16] | "Epidermal growth factor receptor pathway substrate 8 is overexpressed in human pituitary tumors: role in proliferation and survival." Xu M., Shorts-Cary L., Knox A.J., Kleinsmidt-DeMasters B., Lillehei K., Wierman M.E. Endocrinology 150:2064-2071(2009) [PubMed] [Europe PMC] [Abstract] Cited for: INVOLVEMENT IN CANCER. |
| [17] | "Upregulation of Eps8 in oral squamous cell carcinoma promotes cell migration and invasion through integrin-dependent Rac1 activation." Yap L.F., Jenei V., Robinson C.M., Moutasim K., Benn T.M., Threadgold S.P., Lopes V., Wei W., Thomas G.J., Paterson I.C. Oncogene 28:2524-2534(2009) [PubMed] [Europe PMC] [Abstract] Cited for: INVOLVEMENT IN CANCER. |
| [18] | "Solution structure of the C-terminal SAM-domain of epidermal growth receptor pathway substrate 8." RIKEN structural genomics initiative (RSGI) Submitted (JUL-2007) to the PDB data bank Cited for: STRUCTURE BY NMR OF 699-788. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EMBL GenBank DDBJ | U12535 mRNA. Translation: AAA62280.1. AK291777 mRNA. Translation: BAF84466.1. AK292931 mRNA. Translation: BAF85620.1. AC092753 Genomic DNA. No translation available. CH471094 Genomic DNA. Translation: EAW96354.1. BC030010 mRNA. Translation: AAH30010.1. | ||||||||||||
| IPI | IPI00290337. | ||||||||||||
| PIR | I38728. | ||||||||||||
| RefSeq | NP_004438.3. NM_004447.5. | ||||||||||||
| UniGene | Hs.591160. | ||||||||||||
3D structure databases | |||||||||||||
| PDBe RCSB PDB PDBj |
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| ProteinModelPortal | Q12929. | ||||||||||||
| ModBase | Search... | ||||||||||||
Protein-protein interaction databases | |||||||||||||
| DIP | DIP-32859N. | ||||||||||||
| IntAct | Q12929. 35 interactions. | ||||||||||||
| MINT | MINT-5004506. | ||||||||||||
| STRING | 9606.ENSP00000281172. | ||||||||||||
PTM databases | |||||||||||||
| PhosphoSite | Q12929. | ||||||||||||
Polymorphism databases | |||||||||||||
| DMDM | 2833239. | ||||||||||||
Proteomic databases | |||||||||||||
| PaxDb | Q12929. | ||||||||||||
| PRIDE | Q12929. | ||||||||||||
Protocols and materials databases | |||||||||||||
| DNASU | 2059. | ||||||||||||
| StructuralBiologyKnowledgebase | Search... | ||||||||||||
Genome annotation databases | |||||||||||||
| Ensembl | ENST00000281172; ENSP00000281172; ENSG00000151491. ENST00000543523; ENSP00000441867; ENSG00000151491. ENST00000543612; ENSP00000442388; ENSG00000151491. | ||||||||||||
| GeneID | 2059. | ||||||||||||
| KEGG | hsa:2059. | ||||||||||||
| UCSC | uc001rdb.3. human. | ||||||||||||
Organism-specific databases | |||||||||||||
| CTD | 2059. | ||||||||||||
| GeneCards | GC12M015673. | ||||||||||||
| HGNC | HGNC:3420. EPS8. | ||||||||||||
| HPA | HPA003897. | ||||||||||||
| MIM | 600206. gene. | ||||||||||||
| neXtProt | NX_Q12929. | ||||||||||||
| PharmGKB | PA27839. | ||||||||||||
| GenAtlas | Search... | ||||||||||||
Phylogenomic databases | |||||||||||||
| eggNOG | NOG263108. | ||||||||||||
| HOGENOM | HOG000060324. | ||||||||||||
| HOVERGEN | HBG003090. | ||||||||||||
| InParanoid | Q12929. | ||||||||||||
| OMA | PEDVKTW. | ||||||||||||
| OrthoDB | EOG42V8FP. | ||||||||||||
Gene expression databases | |||||||||||||
| ArrayExpress | Q12929. | ||||||||||||
| Bgee | Q12929. | ||||||||||||
| CleanEx | HS_EPS8. | ||||||||||||
| Genevestigator | Q12929. | ||||||||||||
| GermOnline | ENSG00000151491. Homo sapiens. | ||||||||||||
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. human. | ||||||||||||
| EvolutionaryTrace | Q12929. | ||||||||||||
| GenomeRNAi | 2059. | ||||||||||||
| NextBio | 35464377. | ||||||||||||
| SOURCE | Search... | ||||||||||||
Entry information
| Entry name | EPS8_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q12929 Secondary accession number(s): A6NMC3 Q8N6J0 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
| Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. | ||||||||
Relevant documents
| Human chromosome 12 Human chromosome 12: entries, gene names and cross-references to MIM |
| Human entries with polymorphisms or disease mutations List of human entries with polymorphisms or disease mutations |
| Human polymorphisms and disease mutations Index of human polymorphisms and disease mutations |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) 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
