Human Napsin A Antibody

  
  • Species Reactivity
    Human
  • Specificity
    Detects human Napsin A in direct ELISAs and Western blots.
  • Source
    Polyclonal Rabbit IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    Chinese hamster ovary cell line CHO-derived recombinant human Napsin A
    Thr25-Gly420
    Accession # O96009
  • Formulation
    Supplied as a solution in PBS containing BSA, Glycerol and Sodium Azide. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    1:1000 dilution
    See below
  • Immunohistochemistry
    0.5-10 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 Napsin A by Western Blot. Western blot shows lysates of human lung tissue and human kidney tissue. PVDF membrane was probed with 1:1000 dilution of Rabbit Anti-Human Napsin A Antigen Affinity-purified Polyclonal Antibody (Catalog # AF8489) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for Napsin A at approximately 35 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Immunohistochemistry
Napsin A in Human Kidney. Napsin A was detected in immersion fixed paraffin-embedded sections of human kidney using Rabbit Anti-Human Napsin A Antigen Affinity-purified Polyclonal Antibody (Catalog # AF8489) at 1 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Rabbit HRP-DAB Cell & Tissue Staining Kit  (brown; Catalog # CTS005) and counterstained with hematoxylin (blue). Specific staining was localized to lysosomes in epithelial cells in convoluted tubules. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Preparation and Storage
  • Shipping
    The product is shipped with polar packs. 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 opening.
    • 6 months, -20 to -70 °C under sterile conditions after opening.
Background: Napsin A
Novel Aspartic Proteinase of the Pepsin Family or Napsin A is an aspartic proteinase that belongs to the peptidase A1 family and plays a role in pneumocyte surfactant processing. It consists of a 24-residue signal peptide, a 40-amino acid propart, the mature enzyme of 336 amino acids, and a C-terminal extension of 18 residues. Highest levels of Napsin A have been detected in adult lung (type II pneumocytes), fetal lung, and kidney tissues. Napsin A is also expressed at lower levels in adult spleen and at very low levels in peripheral blood leukocytes. Human napsin A shares 72.6% sequence identity with the mouse homolog.
  • Entrez Gene IDs:
    9476 (Human); 16541 (Mouse); 60575 (Rat)
  • Alternate Names:
    Asp 4; ASP4; Aspartyl protease 4; EC 3.4.23; EC 3.4.23.-; EC 3.4.23.15; EC 3.4.23.3; EC 3.4.23.5; KAP; Kdap; NAP1napsin-A; NAPA; NAPApronapsin A; NAPSA; napsin A aspartic peptidase; Napsin A; Napsin-1; SNAPA; TA01/TA02
Related Research Areas
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