App Gene is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
The APP gene (Amyloid Precursor Protein) encodes the Amyloid Precursor Protein, a transmembrane glycoprotein that is centrally implicated in the pathogenesis of Alzheimer's disease (AD). APP is a type I membrane protein that undergoes proteolytic processing by β-secretase and γ-secretase to produce amyloid-beta (Aβ) peptides, which aggregate to form amyloid plaques in the brains of AD patients[1]. The APP gene is located on chromosome 21q21.3 and is essential for normal neuronal function, synaptic plasticity, and neural development[2].
APP is a type I transmembrane protein consisting of:
The protein has multiple isoforms generated by alternative splicing, with APP695 being neuron-specific and implicated in synaptic function[3].
APP undergoes two major processing pathways:
The study of App Gene has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
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van der Kant R, Goldstein LS. Cellular and molecular biology of the beta-amyloid precursor protein (APP) and Alzheimer's disease. J Mol Neurosci. 2020;70(4):541-553. ↩︎