Synthetic peptide corresponding to Human Amyloid Precursor Protein Frameshift Mutant aa 339-348 (C terminal). Frameshift sequence from Figure 1, van Leeuwen, et.al., Frameshift Mutants of β Amyloid Precursor Protein and Ubiquitin-B in Alzheimer’s and Down Patients, Science, Vol. 279, 9 Jan 1998, 242-247.
Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
1/3000. Detects a band of approximately 45 kDa.
RelevanceAmyloid Precursor Protein (APP) is an integral membrane protein with a large ectodomain, a transmembrane domain, and a short cytoplasmic tail. APP is proteolytically cleaved by b-secretase (BACE) to generate the APP N-terminal fragment (sbAPP) with Mr100kD and a C-terminal fragment (C99) with Mr12kD. The smaller 12kD fragment can be further cleaved by g-secretase, an enzyme activity recently attributed to presenilin-2. This second cleavage produces the insoluble b-amyloid (Ab), a peptide of ~4kD. The accumulation of b-amyloid in intracellular neurofibrillary tangles and extracellular plaques is observed in the brains of Alzheimers disease patients and Downs Syndrome patients.
Cellular localizationCell Membrane, Cytoplasmic, Endoplasmic reticulum and Golgi Apparatus