APP-BP1, a Novel Protein That Binds to the Carboxyl-terminal Region of the Amyloid Precursor Protein

Chow, Nienwen; Korenberg, Julie R.; Chen, Xiao Ning; Neve, Rachael L.

doi:10.1074/jbc.271.19.11339

Cited by 107 publications

(96 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, purified CSN was found to bind to the ROC1/Rbx1-CUL1 complex in vitro (Yamoah and Pan, unpublished results). (Handeli and Weintraub, 1992;Chow et al, 1996;Lammer et al, 1998;Liakopoulos et al, 1998;Osaka et al, 1998;Gong and Yeh, 1999;Tateishi et al, 2001;Bohnsack and Haas, 2003;Walden et al, 2003). b (Liakopoulos et al, 1998;Osaka et al, 1998;Gong and Yeh, 1999;Jones and Candido, 2000;Podust et al, 2000;Kurz et al, 2002;Ohh et al, 2002;Dharmasiri et al, 2003).…”

Section: Role Of Nedd8 Proteasesmentioning

confidence: 99%

Nedd8 on cullin: building an expressway to protein destruction

et al. 2004

View full text Add to dashboard Cite

This review summarizes recent advances concerning the Nedd8 regulatory pathway in four areas. One, substantial progress has been made in delineating the role of cullin family proteins, the only known substrates of the Nedd8 modification system. Cullins are molecular scaffolds responsible for assembling the ROC1/Rbx1 RING-based E3 ubiquitin ligases, of which several play a direct role in tumorigenesis. Two, a large body of work has helped elucidate the molecular details underlying the Nedd8 modification reaction, which results in covalent conjugation of a Nedd8 moiety onto a conserved cullin lysine residue. Three, studies using a variety of genetic model systems have established an essential role for Nedd8 in cell cycle control and in embryogenesis by upregulating the activities of cullin-based E3 ligases. In vitro experiments have revealed a direct role for Nedd8 in activating ubiquitination. Construction of a model of the ROC1/ Rbx1-CUL1-Nedd8 structure suggests a mechanism by which the cullin-linked Nedd8 may assist the neighboring ROC1/Rbx1 in landing and positioning the E2 conjugating enzyme for the ubiquitin transfer reaction. Finally, increasing evidence indicates that removal of Nedd8 from its cullin targets, by the action of COP9 Signalosome and possibly other proteases, plays a significant role in the regulation of cullin-mediated proteolysis.

show abstract

Section: Role Of Nedd8 Proteasesmentioning

confidence: 99%

Nedd8 on cullin: building an expressway to protein destruction

et al. 2004

View full text Add to dashboard Cite

show abstract

“…1 The binding site has been identified as the carboxyl-terminal 31 amino-acid residues of APP. 4 This suggests the possibility of a similar interaction between dAPP-BP1 and APPL.…”

mentioning

confidence: 99%

Drosophila homolog of APP-BP1 (dAPP-BP1) interacts antagonistically with APPL during Drosophila development

Kim

et al. 2006

Cell Death Differ

View full text Add to dashboard Cite

b-Amyloid precursor protein binding protein 1 (APP-BP1) was previously identified based on its binding to the carboxyl terminal of b-amyloid precursor protein. In this report, we have discovered that a mutation of dAPP-BP1 (Drosophila ortholog of APP-BP1) hinders tissue development, causes apoptosis in imaginal disc cells, and blocks the NEDD8 conjugation pathway. We show that dAPP-BP1 specifically binds the intracellular domain of APP-like protein (APPL). The dAPP-BP1 mutation partially suppresses the abnormal macrochaete phenotype of Appl d , while overexpression of dAPP-BP1 causes abnormal macrochaetes. When APPL is overexpressed, the normal bristle pattern in the fly thorax is disturbed and apoptosis is induced in wing imaginal discs. APPL overexpression phenotypes are enhanced by reducing the level of dAPP-BP1. APPL overexpression is shown to inhibit the NEDD8 conjugation pathway. APPL-induced apoptosis is rescued by overexpression of dAPP-BP1. Our data suggest that APPL and dAPP-BP1 interact antagonistically during Drosophila development.

show abstract

“…APP-BP1 interacts both in vitro and in vivo with the carboxyl-terminal region of APP, which represents its intracellular domain. This protein is homologous to the product of the Arabidopsis auxin resistance gene AXR1 and to a Caenorabditis elegans protein of unknown function (3).…”

mentioning

confidence: 99%

Interaction of the Phosphotyrosine Interaction/Phosphotyrosine Binding-related Domains of Fe65 with Wild-type and Mutant Alzheimer's β-Amyloid Precursor Proteins

Zambrano

Buxbaum

Minopoli

et al. 1997

Journal of Biological Chemistry

142

124

View full text Add to dashboard Cite

The ␤-amyloid precursor protein (APP) 1 is an integral membrane protein from which the ␤-amyloid peptide is generated. The ␤-amyloid peptide forms the extracellular insoluble aggregates characteristic of Alzheimer's disease. The function of APP and the regulation of the proteolytic events generating the ␤-amyloid peptide are still unknown. APP was expected to be involved in signal transduction processes, because of its transmembrane topology. Three main isoforms of APP exist, generated by alternative splicing (APP 770 , APP 751 , and APP 695 ) and all possessing the same intracellular domain (reviewed in Ref.1). Although little is known about the putative extracellular ligand(s) for APP, several results describe the interaction of its intracellular domain with other proteins. These include the interaction with the heterotrimeric G protein Go (2), a 59-kDa ubiquitously expressed protein named APP-BP1 (3), the X11 protein (4), the neuron-abundant Fe65 protein, and an Fe65-like protein (4 -6). It was shown that intact APP binds to oligomeric Go protein and that the intracellular region of APP spanning residues 657-676 activates Go (2, 7). Furthermore, the interaction of APP with a monoclonal antibody directed against its extracellular domain mimics a ligand-receptor binding that triggers Go activation (7). APP-BP1 interacts both in vitro and in vivo with the carboxyl-terminal region of APP, which represents its intracellular domain. This protein is homologous to the product of the Arabidopsis auxin resistance gene AXR1 and to a Caenorabditis elegans protein of unknown function (3).The Fe65 gene is mainly expressed in the neurons of specific regions of the mammalian nervous system (8, 9) and encodes a protein containing two different types of protein-protein interaction domains: the WW domain (reviewed in Ref. 10) and the phosphotyrosine interaction/phosphotyrosine binding (PID/ PTB) domain (reviewed in Ref. 11). The latter was found in the oncoprotein Shc (12, 13), in its relatives , in other apparently unrelated proteins, such as Numb, X11, and Dab (15), and in insulin receptor substrate 1 (IRS-1) and 17). The PID/PTB domains interact with phosphotyrosine residues located in the intracellular domains of growth factor receptors, such as EGF-R, trkA, and plateletderived growth factor receptor in the case of Shc (13) and insulin receptor and interleukin 4 receptor in the case of IRS-1 (16). In contrast, the Fe65 region containing the two PID/PTB domains was demonstrated to interact with the intracellular domain of APP (5).All the PID/PTB domains present in the Shc family, IRS-1, and Fe65 interact with intracellular regions of membrane proteins containing the consensus motif ⌽XNPXY (where ⌽ is hydrophobic and X is any amino acid). However, Fe65 possesses at least two unique characteristics: (i) although all the known members of the PID/PTB family contain only one PID/ PTB element (13), Fe65 is an exception, because its sequence interacting with APP shows two consecutive PID/PTB domains; and (ii) although the Tyr prese...

show abstract

APP-BP1, a Novel Protein That Binds to the Carboxyl-terminal Region of the Amyloid Precursor Protein

Cited by 107 publications

References 67 publications

Nedd8 on cullin: building an expressway to protein destruction

Nedd8 on cullin: building an expressway to protein destruction

Drosophila homolog of APP-BP1 (dAPP-BP1) interacts antagonistically with APPL during Drosophila development

Interaction of the Phosphotyrosine Interaction/Phosphotyrosine Binding-related Domains of Fe65 with Wild-type and Mutant Alzheimer's β-Amyloid Precursor Proteins

Contact Info

Product

Resources

About