Human/Rat PPP1R9B Antibody

  
  • Species Reactivity
    Human, Rat
  • Specificity
    Detects human and rat PPP1R9B in Western blots.
  • Source
    Polyclonal Sheep IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    E. coli-derived recombinant human PPP1R9B
    Lys289-Asp412
    Accession # Q96SB3
  • Formulation
    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.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    1 µg/mL
    See below
  • Immunocytochemistry
    5-15 µg/mL
    See below
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.
Data Examples
Detection of Human and Rat PPP1R9B by Western Blot. Western blot shows lysates of human brain tissue and rat brain tissue. PVDF Membrane was probed with 1 µg/mL of Human/Rat PPP1R9B Antigen Affinity-purified Polyclonal Antibody (Catalog # AF6465) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). Specific bands were detected for PPP1R9B at approximately 90-120 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Immunocytochemistry
PPP1R9B in Rat Neurons. PPP1R9B was detected in immersion fixed rat hippocampal neurons (E18) using Sheep Anti-Human/Rat PPP1R9B Antigen Affinity-purified Polyclonal Antibody (Catalog # AF6465) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Sheep IgG Secondary Antibody (red; Catalog # NL010) and counterstained with DAPI (blue). Specific staining was localized to synapses. Cells were co-stained using Neuron-specific beta-III Tubulin Monoclonal Antibody (Catalog # MAB1195) and the NorthernLights™ 493-conjugated Anti-Mouse IgG Secondary Antibody (green; Catalog # NL009). View our protocol for Fluorescent ICC Staining of Cells on Coverslips.
Preparation and Storage
  • Reconstitution
    Sterile PBS to a final concentration of 0.2 mg/mL.
  • Shipping
    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.
Background: PPP1R9B

PPP1R9B (Protein phosphatase 1 regulatory subunit 9B; also spinophilin and neurabin-II) is a widely expressed intracellular protein that is found in both cytoplasm and nucleus. Although its predicted MW is 89 kDa, it runs anolamously at 120-140 kDa in SDS-Page. PPP1R9B is associated with actin polymerization, particularly in cells such as neurons and NK cells. In NK cells, it orchestrates actin organization around the immunological synapse, allowing for targeted release of cytotoxic granules. Human PPP1R9B is 815 amino acids (aa) in length. It contains one actin-binding region (aa 1-154), a PP1 binding domain (aa 415-492), a PZD domain (aa 493-583) and a coiled-coil region (aa 647-815). PPP1R9B is reported to form homotrimers and homotetramers. There is one isoform variant that shows an Ala insertion after both Ala158 and Ala165, coupled to a premature truncation after Arg576. Over aa 291-414, human PPP1R9B shares 91% aa identity with mouse PPP1R9B.

  • Long Name:
    Protein Phosphatase 1 Regulatory Subunit 9B
  • Entrez Gene IDs:
    84687 (Human); 217124 (Mouse); 84686 (Rat)
  • Alternate Names:
    FLJ30345; neurabin II; Neurabin-2; neurabin-II; PPP1R6; PPP1R9; PPP1R9B; Protein phosphatase 1 regulatory subunit 9B; protein phosphatase 1, regulatory (inhibitor) subunit 9B; protein phosphatase 1, regulatory subunit 9B, spinophilin; SPINO; Spinophilin; Spn
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