詳細
Amyloid beta A4 protein (UniProt P05067; also known as ABPP, Alzheimer disease amyloid protein, Amyloid precursor protein, APP, APPI, Cerebral vascular amyloid peptide, CVAP, PN-II, PreA4, Protease nexin-II) is encoded by the APP (also known as A4, AD1) gene (Gene ID 351) in human. Amyloid precursor protein (APP) is initially produced with a signal peptide sequence (a.a. 1-17), the removal of which yields the mature protein with a large extracellular portion (a.a. 18-699), followed by a transmembrane segment (a.a. 700-723) and a cytoplasmic (a.a. 724-770) tail. APP can be further processed by the α-, β-, and γ-secretases in two alternative processing pathways. In the non-amyloidogenic pathway, APP is first cleaved by the plasma membrane-localized α-secretase to generate an N-terminal extracellular sAPPα fragment (a.a. 18-687) and a membrane-bound C-terminal fragment C83 (CTFα), which can be further cleaved by γ-secretase to produce a non-toxic small peptide p3 and a cytoplasmic APP intracellular domain (AICD). In the amyloidogenic pathway, APP undergoes β-cleavage in BACE-1 (β-site APP-cleaving enzyme)-enriched endosomes to generate an N-terminal extracellular sAPPβ fragment (a.a. 18-671) and a membrane-bound C-terminal fragment C99 (CTFβ). Subsequent cleavage of C99 by γ-secretase releases the amyloid β peptide (Aβ) and AICD. Aβ accumulation in the cortical and hippocampal regions of the brain is a major pathological feature of Alzheimer′s disease (AD).
特異性
Clone 22C11 reacts with pre-A4. The antibody recognizes amino acids 66-81 of the N-terminus on the pre-A4 molecule (Hilbich, C., et al. (1993). J. Biol. Chem. 268(35):26571-26577). Clone 22C11 recognizes all three isoforms of APP, immature ~110kDa, sAPP ~120kDa, and mature ~130kDa (Hoffmann, J., et al. (2000). Eur. J. Cell. Biol.79(12):905-914.). The antibody is known to cross react with APLP2 (Slunt, H.H., et al. (1994). J. Biol. Chem. 269(4):2637-2644).
免疫原
Epitope: Amino acids 66-81 of APP.
Purified recombinant Alzheimer precursor A4 (pre-A4695) fusion protein.
アプリケーション
Research Category
ニューロサイエンス
Research Sub Category
神経変性疾患
Anti-APP A4 Antibody, a.a. 66-81 of APP {NT}, clone 22C11, Alexa Fluor™ 555 is an antibody against APP A4 for use in Immunocytochemistry.
The unconjugated antibody (Cat. No. MAB348) is shown to be suitable also for immunohistochemistry (for both frozen and paraffin-embedded sections), immunofluorescence, and Western blotting applications.
品質
Evaluated by Immunocytochemistry in SH-5YSY cells.
Immunocytochemistry Analysis: A 1:100 dilution of this antibody detected APP A4 in SH-5YSY cells.
ターゲットの説明
~110/120/130 kDa observed.
物理的形状
Protein A purified
Purified mouse monoclonal IgG1 antibody conjugate in PBS with 15 mg/mL BSA and 0.1 % sodium azide.
保管および安定性
Stable for 1 year at 2-8°C from date of receipt.
その他情報
Concentration: Please refer to lot specific datasheet.
法的情報
ALEXA FLUOR is a trademark of Life Technologies
免責事項
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.