ABI1

Abl-interactor 1
Identifiers
SymbolsABI1 ; ABI-1; ABLBP4; E3B1; NAP1BP; SSH3BP; SSH3BP1
External IDsOMIM: 603050 HomoloGene: 38053 GeneCards: ABI1 Gene
RNA expression pattern
More reference expression data
Orthologs
SpeciesHumanMouse
Entrez1000611308
EnsemblENSG00000136754ENSMUSG00000058835
UniProtQ8IZP0Q8CBW3
RefSeq (mRNA)NM_001012750NM_001077190
RefSeq (protein)NP_001012768NP_001070658
Location (UCSC)Chr 10:
26.75 – 26.86 Mb
Chr 2:
22.94 – 23.04 Mb
PubMed search

Abl interactor 1 also known as Abelson interactor 1 (Abi-1) is a protein that in humans is encoded by the ABI1 gene.[1][2]

Function

Abl interactor 1 has been found to form a complex with EPS8 and SOS1, and is thought to be involved in the transduction of signals from Ras to Rac. In addition, the encoded protein may play a role in the regulation of EGF-induced Erk pathway activation as well as cytoskeletal reorganization and EGFR signaling. Several transcript variants encoding multiple isoforms have been found for this gene.[3]

Abi1 is adaptor protein. It interacts with c-Abl and WAVE2 which is actin polymerization regulator. It is known that Abi1 enhances the phosphorylation of WAVE2 by c-Abl. The phosphorylation of c-Abl promotes actin polymerization. Furthermore, Abi1 is component of WAVE complex. Some research paper showed that knock down of Abi1 by si(short interffering)RNA promoted degradation of WAVE complex proteins.

Interactions

ABI1 has been shown to interact with

ENAH,[4] NCKAP1,[5] EPS8,[2][4][5][6][7] and SOS1.[8]

References

  1. Ziemnicka-Kotula D, Xu J, Gu H, Potempska A, Kim KS, Jenkins EC, Trenkner E, Kotula L (Jul 1998). "Identification of a candidate human spectrin Src homology 3 domain-binding protein suggests a general mechanism of association of tyrosine kinases with the spectrin-based membrane skeleton". J Biol Chem 273 (22): 13681–92. doi:10.1074/jbc.273.22.13681. PMID 9593709.
  2. 2.0 2.1 , Biesova Z, Piccoli C, Wong WT (Feb 1997). "Isolation and characterization of e3B1, an eps8 binding protein that regulates cell growth". Oncogene 14 (2): 233–41. doi:10.1038/sj.onc.1200822. PMID 9010225.
  3. "Entrez Gene: ABI1 abl-interactor 1".
  4. 4.0 4.1 Tani K, Sato S, Sukezane T, Kojima H, Hirose H, Hanafusa H, Shishido T (June 2003). "Abl interactor 1 promotes tyrosine 296 phosphorylation of mammalian enabled (Mena) by c-Abl kinase". J. Biol. Chem. 278 (24): 21685–92. doi:10.1074/jbc.M301447200. PMID 12672821.
  5. 5.0 5.1 Yamamoto A, Suzuki T, Sakaki Y (June 2001). "Isolation of hNap1BP which interacts with human Nap1 (NCKAP1) whose expression is down-regulated in Alzheimer's disease". Gene 271 (2): 159–69. doi:10.1016/S0378-1119(01)00521-2. PMID 11418237.
  6. Offenhäuser N, Borgonovo A, Disanza A, Romano P, Ponzanelli I, Iannolo G, Di Fiore PP, Scita G (January 2004). "The eps8 Family of Proteins Links Growth Factor Stimulation to Actin Reorganization Generating Functional Redundancy in the Ras/Rac Pathway". Mol. Biol. Cell 15 (1): 91–8. doi:10.1091/mbc.E03-06-0427. PMC 307530. PMID 14565974.
  7. Lanzetti L, Rybin V, Malabarba MG, Christoforidis S, Scita G, Zerial M, Di Fiore PP (November 2000). "The Eps8 protein coordinates EGF receptor signalling through Rac and trafficking through Rab5". Nature 408 (6810): 374–7. doi:10.1038/35042605. PMID 11099046.
  8. Scita G, Nordstrom J, Carbone R, Tenca P, Giardina G, Gutkind S, Bjarnegård M, Betsholtz C, Di Fiore PP (September 1999). "EPS8 and E3B1 transduce signals from Ras to Rac". Nature 401 (6750): 290–3. doi:10.1038/45822. PMID 10499589.

Further reading

External links