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- Table of Contents
10 Citations 17 Q&As
3 Citations 16 Q&As
5 Citations 16 Q&As
Facts about Amyloid-beta precursor protein.
Couples to apoptosis-inducing pathways such as those mediated by G(O) and JIP. Inhibits G(o) alpha ATPase activity (By similarity).
Human | |
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Gene Name: | APP |
Uniprot: | P05067 |
Entrez: | 351 |
Belongs to: |
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APP family |
Abeta; Amyloid beta; beta-Amyloid Peptide
Mass (kDA):
86.943 kDA
Human | |
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Location: | 21q21.3 |
Sequence: | 21; NC_000021.9 (25880550..26171128, complement) |
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.
Cell membrane; Single-pass type I membrane protein. Membrane; Single-pass type I membrane protein. Perikaryon. Cell projection, growth cone. Membrane, clathrin-coated pit. Early endosome. Cytoplasmic vesicle. Cell surface protein that rapidly becomes internalized via clathrin-coated pits. Only a minor proportion is present at the cell membrane; most of the protein is present in intracellular vesicles (PubMed:20580937). During maturation, the immature APP (N-glycosylated in the endoplasmic reticulum) moves to the Golgi complex where complete maturation occurs (O-glycosylated and sulfated). Afte
PMID: 2881207 by Kang J., et al. The precursor of Alzheimer's disease amyloid A4 protein resembles a cell-surface receptor.
PMID: 2893289 by Ponte P., et al. A new A4 amyloid mRNA contains a domain homologous to serine proteinase inhibitors.
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