Detection of Pax5/BSAP in Human PBMCs by Flow Cytometry. Human peripheral blood mononuclear cells (PBMCs) were stained with Mouse Anti-Human CD19 APC‑conjugated Monoclonal Antibody (Catalog # FAB4867A) and either (A) Rabbit Anti-Human Pax5/BSAP Alexa Fluor® 488‑conjugated Monoclonal Antibody (Catalog # IC3487G) or (B) Normal Rabbit IgG Alexa Fluor 488 Control (Catalog # IC1051G). To facilitate intracellular staining, cells were fixed and permeabilized with FlowX FoxP3 Fixation & Permeabilization Buffer Kit (Catalog # FC012). View our protocol for Staining Intracellular Molecules.
Preparation and Storage
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Protect from light. Do not freeze.
12 months from date of receipt, 2 to 8 °C as supplied.
Pax5, also known as BSAP (B-cell-specific transcription factor) is a 44-48 kDa monomeric protein that belongs to the paired box transcription factor family of molecules. Human Pax5 is 391 amino acids (aa) in length and contains the paired DNA-binding domain over aa 16-142. More than 10 alternatively spliced isoforms with MW ranging from 25-40 kDa have been reported that likely possess different transactivation properties. Splicing may involve all but the first N-terminal 70 aa. Pax5 is principally found in pro-B cells and mature B cells where it promotes a B cell phenotype at the expense of plasma cell formation. In conjunction with Bcl-6, Pax5 represses XBP-1 and Blimp-1 expression. Over aa 141-391, human Pax5 shares 99% aa sequences identity with mouse Pax5.
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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