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Home › Products › Ion Channels › Ca2+ Channels › Ryanodine Receptor Channels › Antibodies to Interacting Proteins

Certificate of Analysis

Anti-Presenilin-1-ATTO Fluor-488 Antibody

PSEN1, PS-1, Psnl1

Cat #: AIP-011-AG
Alternative Name PSEN1, PS-1, Psnl1
Lyophilized Powder yes
Type: Polyclonal
Host: Rabbit
Reactivity: h, m, r
Immunogen
  • Peptide (C)RDSHLGPHRSTPESR, corresponding to amino acid residues 345-359 of rat Psen1 (Accession P97887). 3rd cytoplasmic loop (at the Psen1 CTF subunit).
Accession (Uniprot) Number P97887
Gene ID 29192
Peptide confirmation Confirmed by amino acid analysis and mass spectrometry.
Homology Mouse, human – identical.
Purity Affinity purified on immobilized antigen.
Form Lyophilized powder. Reconstituted antibody contains phosphate buffered saline (PBS), pH 7.4, 1% BSA, 0.05% NaN3.
Isotype Rabbit IgG.
Label ATTO-488. Maximum absorption 501 nm; maximum fluorescence 523 nm. The fluorescence is excited most efficiently in the 480 - 515 nm range. This label is analogous to the dye fluorescein isothiocyanate (FITC) and can be used with filters used to detect FITC.
Storage before reconstitution The antibody ships as a lyophilized powder at room temperature. Upon arrival, it should be stored at -20°C.
Reconstitution 50 µl double distilled water (DDW).
Antibody concentration after reconstitution 1 mg/ml.
Storage after reconstitution The reconstituted solution can be stored at 4°C, protected from the light, for up to 1 week. For longer periods, small aliquots should be stored at -20°C. Avoid multiple freezing and thawing. Centrifuge all antibody preparations before use (10000 × g 5 min).
Standard quality control of each lot Western blot analysis (unlabeled antibody, #AIP-011), and immunohistochemical staining (labeled antibody).
Applications: if, ih
May also work in: ic*
Immunohistochemistry
  • Mouse brain sections.
  • Multiplex staining of Calnexin and Presenilin-1 in mouse cortex
    Multiplex staining of Calnexin and Presenilin-1 in mouse cortex
    Immunohistochemical staining of perfusion-fixed frozen mouse parietal cortex sections using Anti-Presenilin-1-ATTO Fluor-488 Antibody (#AIP-011-AG), (1:60) and Anti-Calnexin-ATTO Fluor-594 Antibody (#ACS-009-AR), (1:60). A. Calnexin staining (red) appears in neuronal profiles. B. Presenilin-1 staining (green) in the same section appears in neuronal profiles and apical dendrites (arrows). C. Merger of A and B demonstrates colocalization in several neurons (arrows). Cell nuclei are stained using DAPI (blue) as the counterstain. Images were acquired with 25x objective.
  • Multiplex staining of Calnexin and Presenilin-1 in mouse hippocampus
    Multiplex staining of Calnexin and Presenilin-1 in mouse hippocampus
    Immunohistochemical staining of perfusion-fixed frozen mouse hippocampal sections using Anti-Presenilin-1-ATTO Fluor-488 Antibody (#AIP-011-AG), (1:60) and Anti-Calnexin-ATTO Fluor-594 Antibody (#ACS-009-AR), (1:60). A. Calnexin staining (red) appears in neuronal profiles. B. Presenilin-1 staining (green) in the same section appears in neuronal profiles and apical dendrites (arrows). C. Merger of A and B demonstrates colocalization in several neurons (arrows). Cell nuclei are stained using DAPI (blue) as the counterstain. Images were acquired with 25x objective.
Scientific background

Presenilin-1 (PSEN1) is a transmembrane protein encoded by the PS1 gene. The protein is comprised of 9 transmembrane domains. The N- and C-termini of the protein are cytosolic and lumenal respectively. PSEN1, together with three other proteins- nicastrin, presenilin enhancer 2 and anterior pharynx-defective 1 form a protein complex named γ-Secretase. PSEN1 serves as the catalytic subunit of the γ-secretase complex. This complex, along with α- and β-secretases cleaves the amyloid precursor protein (APP). APP is the precursor for β-Amyloid fibrils which are the pathological hallmark of Alzheimer's disease (AD) and mutations in the PSEN1 gene have been implicated in AD pathophysiology. Currently, it remains unclear whether PSEN1 mutations cause disease by a loss of function or a gain of toxic function mechanism1.

PS1 mutations causing an overexpression of mutant human PSEN1 also increase the expression of ryanodine receptor 3 in PC12 cells. In addition, PC12 and cortical neuron cells expressing mutant PSEN1 exhibit increased calcium responses to caffeine compared with cells expressing wildtype PSEN1. This enhanced release of calcium is associated with increased cell vulnerability to β-Amyloid and caffeine induced cellular death. It has been hypothesized that PSEN1 and RyR interact directly2.

PS1 mutations also enhance inositol triphosphate (IP3)-mediated Ca2+ release in non-excitable and excitable cells. IP3-evoked Ca2+ responses are more than threefold greater in PS1M146V knock-in mice relative to non-transgenic controls. These mutations specifically disrupt intracellular Ca2+ release rather than reduce cytosolic Ca2+ buffering or clearance3.

Application key:

CBE- Cell-based ELISA, FC- Flow cytometry, ICC- Immunocytochemistry, IE- Indirect ELISA, IF- Immunofluorescence, IFC- Indirect flow cytometry, IHC- Immunohistochemistry, IP- Immunoprecipitation, LCI- Live cell imaging, N- Neutralization, WB- Western blot

Species reactivity key:

H- Human, M- Mouse, R- Rat
Lyophilized Powder
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Last update: 11/04/2021

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For research purposes only, not for human use

Specifications

Applications

Scientific Background

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    Control Product

    Save $45 off the Blocking Peptide when purchased together with the antibody
    • A Blocking peptide for Anti-Presenilin-1 Antibody (#AIP-011) and Anti-Presenilin-1-ATTO Fluor-488 Antibody (#AIP-011-AG). Intended to be used as a negative control.


      Price: $245

      Presenilin-1 Blocking Peptide (#BLP-IP011)
      Add peptide to cart

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