Detection of Human Pax5/BSAP by Western Blot. Western blot shows lysates of Ramos human Burkitt's lymphoma cell line, Raji human Burkitt's lymphoma cell line, Daudi human Burkitt's lymphoma cell line, and Nalm‑6 human Pre-B acute lymphocytic leukemia cell line. PVDF membrane was probed with 0.5 µg/mL of Goat Anti-Human Pax5/BSAP Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3487) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for Pax5/BSAP at approximately 47 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Pax5/BSAP in Human Tonsil. Pax5/BSAP was detected in immersion fixed paraffin-embedded sections of human tonsil using Goat Anti-Human Pax5/BSAP Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3487) at 3 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). Specific staining was localized to nuclei in lymphocytes. 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.
Pax5, also known as BSAP (B-cell-specific transcription factor) is a 42 kDa protein belonging to the paired box transcription factor family. It is a developmental regulator that is important for B-cell lineage commitment and development. Human Pax5 is a 391 amino acid (aa) protein containing the paired DNA-binding domain at the N‑terminal region. Several alternatively spliced isoforms with altered C‑terminal regions and possessing different transactivation properties have been described. All isoforms share the N‑terminal 235 aa with full-length Pax5. Human Pax5 shares 99%, 97% and 94% aa sequence identity with mouse, bovine and canine Pax5, respectively.
Paired Box Gene 5/B-cell Specific Activator Protein
Entrez Gene IDs:
5079 (Human); 18507 (Mouse)
B cell specific activator protein; B-cell-specific transcription factor; BSAP; BSAPB-cell lineage specific activator; paired box 5; paired box gene 5 (B-cell lineage specific activator protein); paired box gene 5 (B-cell lineage specific activator); paired box homeotic gene 5; paired box protein Pax-5; transcription factor PAX 5
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