APBA2
Identifiers
AliasesAPBA2, D15S1518E, HsT16821, LIN-10, MGC:14091, MINT2, X11-BETA, X11L, amyloid beta precursor protein binding family A member 2
External IDsOMIM: 602712 MGI: 1261791 HomoloGene: 4021 GeneCards: APBA2
Orthologs
SpeciesHumanMouse
Entrez

321

11784

Ensembl

ENSG00000034053
ENSG00000276495

ENSMUSG00000030519

UniProt

Q99767

P98084

RefSeq (mRNA)

NM_001291166
NM_001291167
NM_007461

RefSeq (protein)

NP_001278095
NP_001278096
NP_031487

Location (UCSC)Chr 15: 28.88 – 29.12 MbChr 7: 64.5 – 64.75 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Amyloid beta A4 precursor protein-binding family A member 2 is a protein that in humans is encoded by the APBA2 gene.[5][6]

Structure

This protein has phosphotyrosine-binding domain (PTB domain or PID) in the middle and two PDZ domains at C-terminal.

Function

The protein encoded by this gene is a member of the X11 protein family. It is a neuronal adaptor protein that interacts with the Alzheimer's disease amyloid precursor protein (APP). It stabilises APP and inhibits production of proteolytic APP fragments including the A beta peptide that is deposited in the brains of Alzheimer's disease patients. This gene product is believed to be involved in signal transduction processes. It is also regarded as a putative vesicular trafficking protein in the brain that can form a complex with the potential to couple synaptic vesicle exocytosis to neuronal cell adhesion.[6]

Interactions

APBA2 has been shown to interact with CLSTN1,[7][8] RELA[9] and amyloid precursor protein.[7][10][11]

References

  1. 1 2 3 ENSG00000276495 GRCh38: Ensembl release 89: ENSG00000034053, ENSG00000276495 - Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000030519 - Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. McLoughlin DM, Miller CC (January 1997). "The intracellular cytoplasmic domain of the Alzheimer's disease amyloid precursor protein interacts with phosphotyrosine-binding domain proteins in the yeast two-hybrid system". FEBS Lett. 397 (2–3): 197–200. doi:10.1016/S0014-5793(96)01128-3. PMID 8955346.
  6. 1 2 "Entrez Gene: APBA2 amyloid beta (A4) precursor protein-binding, family A, member 2 (X11-like)".
  7. 1 2 Araki Y, Tomita S, Yamaguchi H, Miyagi N, Sumioka A, Kirino Y, Suzuki T (December 2003). "Novel cadherin-related membrane proteins, Alcadeins, enhance the X11-like protein-mediated stabilization of amyloid beta-protein precursor metabolism". J. Biol. Chem. 278 (49): 49448–58. doi:10.1074/jbc.M306024200. PMID 12972431.
  8. Araki Y, Miyagi N, Kato N, Yoshida T, Wada S, Nishimura M, Komano H, Yamamoto T, De Strooper B, Yamamoto K, Suzuki T (June 2004). "Coordinated metabolism of Alcadein and amyloid beta-protein precursor regulates FE65-dependent gene transactivation". J. Biol. Chem. 279 (23): 24343–54. doi:10.1074/jbc.M401925200. PMID 15037614.
  9. Tomita S, Fujita T, Kirino Y, Suzuki T (April 2000). "PDZ domain-dependent suppression of NF-kappaB/p65-induced Abeta42 production by a neuron-specific X11-like protein". J. Biol. Chem. 275 (17): 13056–60. doi:10.1074/jbc.C000019200. PMID 10777610.
  10. Biederer T, Cao X, Südhof TC, Liu X (September 2002). "Regulation of APP-dependent transcription complexes by Mint/X11s: differential functions of Mint isoforms". J. Neurosci. 22 (17): 7340–51. doi:10.1523/JNEUROSCI.22-17-07340.2002. PMC 6757996. PMID 12196555.
  11. Tomita S, Ozaki T, Taru H, Oguchi S, Takeda S, Yagi Y, Sakiyama S, Kirino Y, Suzuki T (January 1999). "Interaction of a neuron-specific protein containing PDZ domains with Alzheimer's amyloid precursor protein". J. Biol. Chem. 274 (4): 2243–54. doi:10.1074/jbc.274.4.2243. PMID 9890987.

Further reading


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