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Amyloid-Beta A4 Antibody (APP)

Rabbit Monoclonal Antibody

  •  - Amyloid-Beta A4 Antibody (APP) AJ1042b
    Staining of various paraffin-embedded human tissue samples using anti-Amyloid Beta A4 precursor RabMAb (Cat. #AJ1042b). Human breast showed negative staining. Tissues were stained in parallel on the same Normal Tissue Array.
  • IHC - Amyloid-Beta A4 Antibody (APP) AJ1042b
    B. Staining of various paraffin-embedded human tissue samples using anti-Amyloid Beta A4 precursor RabMAb (Cat. #AJ1042b). Human brain tissue showed positive immunohistochemical staining for Amyloid Beta A4 precursor. Tissues were stained in parallel on the same Normal Tissue Array.
  •  - Amyloid-Beta A4 Antibody (APP) AJ1042b
    Staining of various paraffin-embedded human tissue samples using anti-Amyloid Beta A4 precursor RabMAb (Cat. #AJ1042b). Skeletal muscle showed negative staining. Tissues were stained in parallel on the same Normal Tissue Array.
  •  - Amyloid-Beta A4 Antibody (APP) AJ1042b
    Staining of various paraffin-embedded human tissue samples using anti-Amyloid Beta A4 precursor RabMAb (Cat. #AJ1042b). Liver showed negative staining. Tissues were stained in parallel on the same Normal Tissue Array.
  • WB - Amyloid-Beta A4 Antibody (APP) AJ1042b
    A. Western blot analysis on Hela cell lysate using anti- Amyloid Beta A4 precusor RabMAb (Cat. #AJ1042b), dilution 1:20,000
Product Information
  • Applications Legend:
  • WB=Western Blot
  • IHC=Immunohistochemistry
  • IHC-P=Immunohistochemistry (Paraffin-embedded Sections)
  • IHC-F=Immunohistochemistry (Frozen Sections)
  • IF=Immunofluorescence
  • FC=Flow Cytopmetry
  • IC=Immunochemistry
  • ICC=Immunocytochemistry
  • IP=Immunoprecipitation
  • DB=Dot Blot
  • CHIP=Chromatin Immunoprecipitation
  • FA=Fluorescence Assay
  • IEM=Immunoelectronmicroscopy
  • EIA=Enzyme Immunoassay
Primary Accession P05067
Reactivity Human, Mouse, Rat
Host Rabbit
Clonality Monoclonal
Clone Names Y188
Calculated MW 86943 Da
Gene ID 351
Other Names Amyloid beta A4 protein, ABPP, APPI, APP, Alzheimer disease amyloid protein, Cerebral vascular amyloid peptide, CVAP, PreA4, Protease nexin-II, PN-II, N-APP, Soluble APP-alpha, S-APP-alpha, Soluble APP-beta, S-APP-beta, C99, Beta-amyloid protein 42, Beta-APP42, Beta-amyloid protein 40, Beta-APP40, C83, P3(42), P3(40), C80, Gamma-secretase C-terminal fragment 59, Amyloid intracellular domain 59, AICD-59, AID(59), Gamma-CTF(59), Gamma-secretase C-terminal fragment 57, Amyloid intracellular domain 57, AICD-57, AID(57), Gamma-CTF(57), Gamma-secretase C-terminal fragment 50, Amyloid intracellular domain 50, AICD-50, AID(50), Gamma-CTF(50), C31, APP, A4, AD1
Target/Specificity A synthetic peptide corresponding to residues in the NPXY motif of human Amyloid Beta A4 precusor (APP) was used as immunogen. This antibody specifically recognizes APP and its isoforms. It will not recognize either of the two Amyloid Beta Protein ( A?4 ) variants, A?1 -40 or A?1 -42.
Dilution IHC~~1:250~500
Format 50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.
StorageMaintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.
PrecautionsAmyloid-Beta A4 Antibody (APP) is for research use only and not for use in diagnostic or therapeutic procedures.
Protein Information
Name APP
Synonyms A4, AD1
Function Functions as a cell surface receptor and performs physiological functions on the surface of neurons relevant to neurite growth, neuronal adhesion and axonogenesis. Involved in cell mobility and transcription regulation through protein-protein interactions. Can promote transcription activation through binding to APBB1-KAT5 and inhibits Notch signaling through interaction with Numb. Couples to apoptosis-inducing pathways such as those mediated by G(O) and JIP. Inhibits G(o) alpha ATPase activity (By similarity). Acts as a kinesin I membrane receptor, mediating the axonal transport of beta-secretase and presenilin 1. Involved in copper homeostasis/oxidative stress through copper ion reduction. In vitro, copper-metallated APP induces neuronal death directly or is potentiated through Cu(2+)-mediated low-density lipoprotein oxidation. Can regulate neurite outgrowth through binding to components of the extracellular matrix such as heparin and collagen I and IV. The splice isoforms that contain the BPTI domain possess protease inhibitor activity. Induces a AGER- dependent pathway that involves activation of p38 MAPK, resulting in internalization of amyloid-beta peptide and leading to mitochondrial dysfunction in cultured cortical neurons. Provides Cu(2+) ions for GPC1 which are required for release of nitric oxide (NO) and subsequent degradation of the heparan sulfate chains on GPC1. N-APP binds TNFRSF21 triggering caspase activation and degeneration of both neuronal cell bodies (via caspase-3) and axons (via caspase-6).
Cellular Location Membrane; Single-pass type I membrane protein. Membrane, clathrin-coated pit. Note=Cell surface protein that rapidly becomes internalized via clathrin-coated pits. During maturation, the immature APP (N-glycosylated in the endoplasmic reticulum) moves to the Golgi complex where complete maturation occurs (O-glycosylated and sulfated). After alpha-secretase cleavage, soluble APP is released into the extracellular space and the C-terminal is internalized to endosomes and lysosomes. Some APP accumulates in secretory transport vesicles leaving the late Golgi compartment and returns to the cell surface. Gamma-CTF(59) peptide is located to both the cytoplasm and nuclei of neurons. It can be translocated to the nucleus through association with APBB1 (Fe65). Beta-APP42 associates with FRPL1 at the cell surface and the complex is then rapidly internalized. APP sorts to the basolateral surface in epithelial cells. During neuronal differentiation, the Thr-743 phosphorylated form is located mainly in growth cones, moderately in neurites and sparingly in the cell body. Casein kinase phosphorylation can occur either at the cell surface or within a post-Golgi compartment. Associates with GPC1 in perinuclear compartments. Colocalizes with SORL1 in a vesicular pattern in cytoplasm and perinuclear regions
Tissue Location Expressed in all fetal tissues examined with highest levels in brain, kidney, heart and spleen. Weak expression in liver. In adult brain, highest expression found in the frontal lobe of the cortex and in the anterior perisylvian cortex- opercular gyri. Moderate expression in the cerebellar cortex, the posterior perisylvian cortex-opercular gyri and the temporal associated cortex. Weak expression found in the striate, extra- striate and motor cortices. Expressed in cerebrospinal fluid, and plasma. Isoform APP695 is the predominant form in neuronal tissue, isoform APP751 and isoform APP770 are widely expressed in non- neuronal cells. Isoform APP751 is the most abundant form in T- lymphocytes. Appican is expressed in astrocytes
Research Areas
Citations (0)

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Alzheimer's disease (AD) is characterized by the presence of senile plaques in the brain and blood vessel walls. Amyloid Beta A4 (A?4) protein has been found to be the principal constituent of senile plaques of ADs patients (1-2). The amyloid beta-protein precursor (APP) is proteolytically cleaved to generate the 4 kDa A?4 protein. Two variants of A?4 can be detected; A?1-40 short-tailed and A?1-42 long-tailed (3-4).


1. Glenner, G. G., Wong, C. W. (1984) Biochem. Biophys. Res. Commun. 120, 885-890
2. Masters, C. L., Simms, G., Weinman, N. A., Multhaup, G., McDonald, B., Beyreuther, K. (1985) Proc. Natl. Acad. Sci. U. S. A. 82, 4245-4249
3. Dovey, H. F., Suomesaari-Chrysler, S., Lieberburg, I., Sinha, S., and Kiem, P. S. (1993) NeuroReport 4, 1039-1042
4. Vigo-Pelfrey, C., Lee, D., Keim, P., Lieberburg, I., Schenk, D. B. (1993) J. Neurochem. 61, 1965-1968

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Cat# AJ1042b
(40 western blots)
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