Detects human PS-1 NTF in direct ELISAs and Western blots. In direct ELISAs and Western blots, less than 1% cross-reactivity with recombinant human (rh) PS-1 CTF (aa 298-407) and rhPS-2 NTF (aa 1-80) is observed.
Polyclonal Goat IgG
E. coli-derived recombinant human Presenilin-1 Lys1-Lys80 Accession # P49768
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Recombinant Human Presenilin‑1 N-Terminal Fragment
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Presenilin‑1 in Human Brain. Presenilin‑1 was detected in immersion fixed paraffin-embedded sections of human brain (hippocampus) using 15 µg/mL Goat Anti-Human Presenilin‑1 N‑Terminal Fragment Antigen Affinity-purified Polyclonal Antibody (Catalog # AF149) overnight at 4 °C. Tissue was stained with the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Presenilin-1 (PS-1) and Presenilin-2 (PS-2) are integral membrane proteins that contain multiple transmembrane domains. Both are predominantly located within the endoplasmic reticulum (ER) and early Golgi apparatus. They are primarily expressed in neurons and are ubiquitously expressed in the brain. PS-1 and PS-2 are proteolytically cleaved to generate an N-terminal fragment (NTF) and a C-terminal fragment (CTF). Mutations in the gene for Presenilin may play an important role in the pathology of Alzheimer's disease.
R&D Systems personnel manually curate a database that contains references using R&D Systems products.
The data collected includes not only links to publications in PubMed,
but also provides information about sample types, species, and experimental conditions.
The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.