Description
Key facts
Detection method:Colorimetric,
Sample types:Cerebral Spinal Fluid, Urine, Cell culture extracts, Tissue Extracts, Heparin Plasma, Citrate plasma, Cell culture supernatant, Serum, EDTA Plasma,
Reacts with:Human,
Assay type:Sandwich (quantitative),
Sensitivity:= 14.9 pg/mL,
Range:93.75 - 6000 pg/mL,
Assay time:1h 30m,
Assay Platform:Pre-coated microplate (12 x 8 well strips)
Product details:
Human Amyloid Precursor Protein ELISA Kit (ab216944) is a single-wash 90 min sandwich ELISA designed for the quantitative measurement of Amyloid Precursor Protein protein in cell culture extracts, cell culture supernatant, cerebral spinal fluid, cit plasma, edta plasma, hep plasma, serum, tissue extracts, and urine. It uses our proprietary SimpleStep ELISA® technology. Quantitate Human Amyloid Precursor Protein with 14.9 pg/ml sensitivity.
SimpleStep ELISA® technology employs capture antibodies conjugated to an affinity tag that is recognized by the monoclonal antibody used to coat our SimpleStep ELISA® plates. This approach to sandwich ELISA allows the formation of the antibody-analyte sandwich complex in a single step, significantly reducing assay time. See the SimpleStep ELISA® protocol summary in the image section for further details. Our SimpleStep ELISA® technology provides several benefits:
- Single-wash protocol reduces assay time to 90 minutes or less
- High sensitivity, specificity and reproducibility from superior antibodies
- Fully validated in biological samples
- 96-wells plate breakable into 12 x 8 wells strips
A 384-well SimpleStep ELISA® microplate (ab203359) is available to use as an alternative to the 96-well microplate provided with SimpleStep ELISA® kits.
Amyloid Precursor Protein (GeneCards: APP) is a multifunctional transmembrane protein that consists of a 682 amino acid (aa) long extracellular domain, a 24 aa long transmembrane segment, and a 47 aa long cytoplasmic domain. Alternative splicing generates multiple isoforms including the most prevalent APP695, APP751, and APP770. 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. Amyloid Precursor Protein functions as a cell surface receptor and performs physiological functions on the surface of neurons relevant to neurite growth, neuronal adhesion and axonogenesis. Amyloid Precursor Protein is involved in cell mobility and transcription regulation through protein-protein interactions.
REACH authorisation
Abcam has not and does not intend to apply for the REACH Authorisation of customers' uses of products that contain European Authorisation list (Annex XIV) substances.
It is the responsibility of our customers to check the necessity of application of REACH Authorisation, and any other relevant authorisations, for their intended uses.
Properties and Storage Information:
Shipped at conditions-Blue Ice, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions-+4°C, Storage information-+4°C
Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
The Amyloid Precursor Protein (APP) also known as amyloid protein is a transmembrane protein that is approximately 695 to 770 amino acids in length depending on the isoform. The molecular mass of APP can vary but typically falls around 100 to 140 kDa. It is heavily expressed in the central nervous system particularly in neurons but also in other tissues like muscle and kidney. The APP undergoes proteolytic processing which leads to the generation of various fragments including beta-amyloid peptides.
Biological function summary
The processing of APP plays a fundamental role in neuronal growth survival and repair. APP is cleaved into fragments that can regulate synaptic function and plasticity. It does not operate as a part of a complex but interacts with various cellular components. The protein participates in signaling pathways influencing cellular adhesion motility and neurite outgrowth. APP’s numerous interaction partners facilitate its involvement in different cellular processes highlighting its critical role in normal cell function.
Pathways
The APP is a central component in the amyloidogenic pathway where its cleavage by beta-secretase and gamma-secretase yields beta-amyloid. This pathway is one of two primary metabolic routes for APP—alternative enzymatic processing through the non-amyloidogenic pathway precludes beta-amyloid formation releasing peptides that do not aggregate. Enzymes like BACE1 (beta-secretase 1) and presenilin are important in the amyloidogenic pathway directly resulting in the production of the neurotoxic amyloid beta-peptide.
APP is intensely linked to Alzheimer's disease and cerebral amyloid angiopathy. Accumulation of beta-amyloid peptides formed from APP cleavage is a hallmark of Alzheimer's disease leading to plaque formation in the brain. This aggregation impacts neuronal function and is associated with neurodegenerative processes. Interactions with proteins like tau are significant as tau also plays an essential role in Alzheimer's disease pathology. Misprocessing of APP and the resulting beta-amyloid aggregates are also contributors to cerebral amyloid angiopathy where deposits within cerebrovascular walls compromise vascular integrity.
