Description
Product Usage Information
Western Blotting: 1:1000
Immunoprecipitation: 1:50
Storage
Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at -20°C. Do not aliquot the antibody.
Protocol
Available protocols: Western Blotting, Immunoprecipitation
Specificity / Sensitivity
Phospho-APP (Thr668) (D90B8) Rabbit Monoclonal Antibody detects different isoforms of endogenous amyloid β (A4) precursor protein only when phosphorylated at Thr668 (or the corresponding position of other isoforms).
Species Reactivity: Human, Mouse, Rat
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Thr668 of human APP protein.
Background
Amyloid β (Aβ) precursor protein (APP) is a 100-140 kDa transmembrane glycoprotein that exists as several isoforms (1). The amino acid sequence of APP contains the amyloid domain, which can be released by a two-step proteolytic cleavage (1). The extracellular deposition and accumulation of the released Aβ fragments form the main components of amyloid plaques in Alzheimer's disease (1). APP can be phosphorylated at several sites, which may affect the proteolytic processing and secretion of this protein (2-5). Phosphorylation at Thr668 (a position corresponding to the APP695 isoform) by cyclin-dependent kinase is cell-cycle dependent and peaks during G2/M phase (4). APP phosphorylated at Thr668 exists in adult rat brain and correlates with cultured neuronal differentiation (5,6).
Alternate Names
A4; AAA; ABETA; Abeta40; Abeta42; ABPP; AD1; AICD-50; AICD-57; AICD-59; AID(50); AID(57); AID(59); Alpha-CTF; Alpha-secretase C-terminal fragment; Alzheimer disease amyloid protein; Amyloid beta; amyloid beta (A4) precursor protein; Amyloid beta A4 protein; amyloid beta precursor protein; Amyloid intracellular domain 50; Amyloid intracellular domain 57; Amyloid intracellular domain 59; Amyloid precursor protein; Amyloid-beta A4 protein; Amyloid-beta precursor protein; Amyloid-beta protein 40; Amyloid-beta protein 42; APP; APPI; Beta Amyloid; beta-amyloid peptide; beta-amyloid peptide(1-40); beta-amyloid peptide(1-42); beta-amyloid precursor protein; Beta-amyloid protein 40; Beta-amyloid protein 42; Beta-APP40; Beta-APP42; Beta-CTF; Beta-secretase C-terminal fragment; C31; C80; C83; C99; Cerebral vascular amyloid peptide; CTFgamma; CVAP; Gamma-CTF(50); Gamma-CTF(57); Gamma-CTF(59); Gamma-secretase C-terminal fragment 50; Gamma-secretase C-terminal fragment 57; Gamma-secretase C-terminal fragment 59; N-APP; P3(40); P3(42); peptidase nexin-II; PN-II; PN2; PreA4; Protease nexin-II; S-APP-alpha; S-APP-beta; Soluble APP-alpha; Soluble APP-beta; testicular tissue protein Li 2
