Revision 3
Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB, IHC-P, IF-F

REACTIVITY:

H

SENSITIVITY:

Endogenous

MW (kDa):

4

Source/Isotype:

Rabbit IgG

UniProt ID:

#P05067

Entrez-Gene Id:

351

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunohistochemistry (Paraffin) 1:100
Immunofluorescence (Frozen) 1:200

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.

For a carrier free (BSA and azide free) version of this product see product #76486.

Specificity / Sensitivity

β-Amyloid (pE3 Peptide) (D5N5H) Rabbit mAb recognizes recombinant pE3 form of β-amyloid peptides. This antibody does not cross-react with the non-pyroglutamate (E3) form of β-amyloid peptides.

Species Reactivity:

Human

Source / Purification

Monoclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues near the amino terminus of β-amyloid (pE3) peptide.

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).
Aβ peptides can be further modified by amino-terminal truncation that exposes a free glutamate residue to the enzyme glutaminyl cyclase, which catalyzes the formation of an amino-terminal pyroglutamate (pE) (7,8). Aβ (pE3) peptides exhibit increased stability relative to non-modified peptides due to an enhanced resistance to peptidase-mediated degradation (9) and a higher propensity to form β-sheets and aggregate (10). Antibodies targeting Aβ (pE3) peptides may be plaque-specific as there is no evidence for circulating Aβ (pE3) peptides (11).

  1. Selkoe, D.J. (1996) J Biol Chem 271, 18295-8.
  2. Caporaso, G.L. et al. (1992) Proc Natl Acad Sci USA 89, 3055-9.
  3. Hung, A.Y. and Selkoe, D.J. (1994) EMBO J 13, 534-42.
  4. Suzuki, T. et al. (1994) EMBO J 13, 1114-22.
  5. Ando, K. et al. (1999) J Neurosci 19, 4421-7.
  6. Iijima, K. et al. (2000) J Neurochem 75, 1085-91.
  7. Jawhar, S. et al. (2011) J Biol Chem 286, 38825-32.
  8. Saido, T.C. et al. (1995) Neuron 14, 457-66.
  9. Saido, T.C. et al. (1996) Neurosci Lett 215, 173-6.
  10. He, W. and Barrow, C.J. (1999) Biochemistry 38, 10871-7.
  11. Demattos, R.B. et al. (2012) Neuron 76, 908-20.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting IHC-P: Immunohistochemistry (Paraffin) IF-F: Immunofluorescence (Frozen)

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
SignalStain is a registered trademark of Cell Signaling Technology, Inc.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

限制使用

除非 CST 的合法授书代表以书面形式书行明确同意,否书以下条款适用于 CST、其关书方或分书商提供的书品。 任何书充本条款或与本条款不同的客书条款和条件,除非书 CST 的合法授书代表以书面形式书独接受, 否书均被拒书,并且无效。

专品专有“专供研究使用”的专专或专似的专专声明, 且未专得美国食品和专品管理局或其他外国或国内专管机专专专任何用途的批准、准专或专可。客专不得将任何专品用于任何专断或治专目的, 或以任何不符合专专声明的方式使用专品。CST 专售或专可的专品提供专作专最专用专的客专,且专用于研专用途。将专品用于专断、专防或治专目的, 或专专售(专独或作专专成)或其他商专目的而专专专品,均需要 CST 的专独专可。客专:(a) 不得专独或与其他材料专合向任何第三方出售、专可、 出借、捐专或以其他方式专专或提供任何专品,或使用专品制造任何商专专品,(b) 不得复制、修改、逆向工程、反专专、 反专专专品或以其他方式专专专专专品的基专专专或技专,或使用专品开专任何与 CST 的专品或服专专争的专品或服专, (c) 不得更改或专除专品上的任何商专、商品名称、徽专、专利或版专声明或专专,(d) 只能根据 CST 的专品专售条款和任何适用文档使用专品, (e) 专遵守客专与专品一起使用的任何第三方专品或服专的任何专可、服专条款或专似专专

Revision 3
#14975

β-Amyloid (pE3 Peptide) (D5N5H) Rabbit mAb

Western Blotting Image 1: β-Amyloid (pE3 Peptide) (D5N5H) Rabbit mAb Expand Image
使用肽斑点印迹展示 β-Amyloid (pE3 Peptide) (D5N5H) Rabbit mAb 的特异性。β-Amyloid (pE3 Peptide) (D5N5H) Rabbit mAb 结合至预包被的 β-淀粉样 (pE3) 肽,但是不结合至 β-淀粉样 (E3) 肽或乱序 β-淀粉样 (pE3) 肽。
Western Blotting Image 2: β-Amyloid (pE3 Peptide) (D5N5H) Rabbit mAb Expand Image
使用 β-Amyloid (pE3 Peptide) (D5N5H) Rabbit mAb(上图)和 β-Amyloid (1-42) (D3E10) Rabbit mAb #12843(下图)对所示量的人 Aβ (pE3-42) 肽和 Aβ (1-42) 肽进行蛋白质印迹分析。
Immunohistochemistry Image 1: β-Amyloid (pE3 Peptide) (D5N5H) Rabbit mAb Expand Image
使用 β-Amyloid (pE3 Peptide) (D5N5H) Rabbit mAb,对石蜡包埋的人阿尔茨海默病脑,进行免疫组织化学分析。
Immunohistochemistry Image 2: β-Amyloid (pE3 Peptide) (D5N5H) Rabbit mAb Expand Image
使用 β-Amyloid (pE3 Peptide) (D5N5H) Rabbit mAb,对石蜡包埋的 Tg2576 阿尔茨海默病小鼠脑模型,进行免疫组织化学分析。
Immunofluorescence Image 1: β-Amyloid (pE3 Peptide) (D5N5H) Rabbit mAb Expand Image
使用 β-Amyloid (pE3 Peptide) (D5N5H) Rabbit mAb(绿色)和 β3-Tubulin (TU-20) Mouse mAb #4466(红色),对野生型(左)和 Tg2576 阿尔茨海默病小鼠脑模型(右),进行共聚焦免疫荧光分析。蓝色伪彩 = DRAQ5® #4084(DNA 荧光染料)。