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Home >> Antibodies >> APP Antibody / Amyloid Precursor Protein Antibody

APP Antibody / Amyloid Precursor Protein Antibody (R31517)

  Catalog No Formulation Size Price (USD)  
Image R31517 0.5mg/ml if reconstituted with 0.2ml sterile DI water 100 ug 449
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APP Antibody in Human Cell Lines and Rodent Brain WB. Western blot testing of human HeLa, U-87 MG, T-47D, A549 and U-2 OS cell lysates, rat brain lysate, and mouse brain lysate with APP Antibody detects a prominent species at approximately 110-120 kDa across all samples, with an additional band near 50-55 kDa. The higher molecular weight signal is consistent with glycosylated amyloid precursor protein, while the lower band may represent an APP-derived processing product. This Amyloid Precursor Protein Antibody therefore recognizes multiple APP-associated species under the tested conditions.
APP Antibody in Human A431 Cells IF. Immunofluorescence staining of FFPE human A431 cells with APP Antibody at 2 ug/ml demonstrates green cytoplasmic staining with a granular distribution and areas of stronger perinuclear signal. DAPI counterstaining identifies nuclei in blue, which remain largely devoid of green fluorescence. The observed intracellular pattern is consistent with the membrane-trafficking and vesicular distribution associated with amyloid precursor protein.
APP Antibody in Human Glioma Tissue IHC. Immunohistochemistry staining of FFPE human glioma tissue with APP Antibody at 1 ug/ml demonstrates heterogeneous brown cytoplasmic staining within tumor cells, with areas of more prominent granular positivity. Sections underwent HIER in 10 mM citrate buffer, pH 6, for 10-20 min followed by cooling before testing. The Amyloid Precursor Protein Antibody highlights APP-associated staining against the hematoxylin-counterstained tumor tissue.
APP Antibody in Mouse Brain Tissue IHC. Immunohistochemistry staining of FFPE mouse brain with APP Antibody at 1 ug/ml demonstrates widespread brown staining with prominent cytoplasmic and neuropil-associated signal in the examined brain region. HIER was performed in 10 mM citrate buffer, pH 6, for 10-20 min followed by cooling. The Amyloid Precursor Protein Antibody produces a distinct regional staining pattern while nuclei remain predominantly hematoxylin counterstained.
APP Antibody in Rat Brain Tissue IHC. Immunohistochemistry staining of FFPE rat brain with APP Antibody at 1 ug/ml shows heterogeneous brown staining concentrated in cellular and neuropil-rich regions, with scattered cells displaying stronger cytoplasmic positivity. Sections underwent HIER in 10 mM citrate buffer, pH 6, for 10-20 min followed by cooling. The distribution demonstrates regionally variable recognition by the Amyloid Precursor Protein Antibody in rat brain tissue.
APP Antibody in Human Renal Cancer Tissue IHC. Immunohistochemistry staining of FFPE human renal cancer tissue with APP Antibody at 1 ug/ml demonstrates heterogeneous brown cytoplasmic staining within tumor epithelial structures, with stronger signal in subsets of cells. HIER was performed in 10 mM citrate buffer, pH 6, for 10-20 min followed by cooling. The Amyloid Precursor Protein Antibody produces localized tumor-cell staining against the hematoxylin-counterstained tissue.
APP Antibody in Human Tonsil Tissue IHC. Immunohistochemistry staining of FFPE human tonsil with APP Antibody at 1 ug/ml demonstrates relatively sparse, heterogeneous brown staining within the lymphoid tissue, including scattered positive cells and focal areas of increased signal. Sections underwent HIER in 10 mM citrate buffer, pH 6, for 10-20 min followed by cooling. The Amyloid Precursor Protein Antibody highlights a restricted cellular distribution against the predominantly hematoxylin-counterstained tonsillar tissue.
Availability 1-3 business days
Species Reactivity Human, Mouse, Rat
Format Antigen affinity purified
Host Rabbit
Clonality Polyclonal (rabbit origin)
Isotype Rabbit IgG
Purity Antigen affinity
Buffer Lyophilized from 1X PBS with 2.5% BSA, 0.025% sodium azide
UniProt P05067
Localization Cytoplasmic, membrane
Applications Western Blot : 0.5-1ug/ml
IHC (FFPE) : 0.5-1ug/ml
IF/ICC (FFPE) : 2-4ug/ml
Limitations This APP Antibody / Amyloid Precursor Protein Antibody is available for research use only.
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Description

APP Antibody reagents are used to study amyloid precursor protein, a widely expressed type I transmembrane glycoprotein with particularly important roles in nervous system research. APP undergoes extensive proteolytic processing that generates multiple soluble and membrane-associated products with distinct biological properties. Alternative splicing also produces several APP isoforms, contributing to the molecular diversity observed for this protein.

Amyloid precursor protein can be processed through amyloidogenic and non-amyloidogenic pathways. In the non-amyloidogenic pathway, alpha-secretase cleavage occurs within the amyloid beta sequence and prevents production of intact amyloid beta peptide. In the amyloidogenic pathway, sequential beta- and gamma-secretase cleavage generates amyloid beta peptides, including the extensively studied amyloid beta 40 and amyloid beta 42 forms. The processing, trafficking, and turnover of APP are therefore central areas of research into amyloid biology.

APP and its proteolytic products have been implicated in neuronal development, neurite outgrowth, cell adhesion, synaptic function, intracellular signaling, and responses to cellular stress. APP belongs to a protein family that also includes APLP1 and APLP2. Several APP isoforms additionally contain a Kunitz-type protease inhibitor domain and have historically been associated with names such as protease nexin-II and APPI.

Altered processing of APP is studied extensively in Alzheimer disease and related neurodegenerative disorders. Amyloid beta peptides derived from APP can assemble into soluble oligomers, fibrils, and extracellular deposits, while APP itself and its other cleavage products continue to be investigated for functions independent of amyloid plaque formation. An Amyloid Precursor Protein Antibody can therefore support research into APP expression and processing as well as broader studies of neuronal and neurodegenerative biology.

An APP Antibody directed against the amyloid beta-containing region of human APP provides a reagent for studying APP-associated protein species. This antibody was generated against a human APP-derived sequence encompassing the amyloid beta region and recognizes human, mouse, and rat samples. NSJ Bioreagents offers this antibody for research into APP expression, processing, and related neuroscience biology.

For a monoclonal targeting the same protein family and amyloid-associated region, see our Amyloid Beta Antibody APP/3345 / Beta Amyloid Antibody page.

Application Notes

The stated application concentrations are suggested starting amounts. Titration of the APP Antibody / Amyloid Precursor Protein Antibody may be required due to differences in protocols and secondary/substrate sensitivity.

Immunogen

An amino acid sequence from the C-terminus of human Amyloid Precursor Protein (DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVVIA) was used as the immunogen for this APP Antibody.

Storage

After reconstitution, the APP Antibody can be stored for up to one month at 4oC. For long-term, aliquot and store at -20oC. Avoid repeated freezing and thawing.

Alternate Names

APP antibody, Amyloid precursor protein antibody, Amyloid beta precursor protein antibody, ABPP antibody, PreA4 antibody, Protease nexin-II antibody, PN-II antibody

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