{"product_id":"anti-bsap-pax5-antibody-picoband-bha21005179","title":"Anti-BSAP\/PAX5 Antibody Picoband®","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eAnti-BSAP\/PAX5 Antibody Picoband® is an antibody reagent for detection of \u003cstrong\u003ePAX5\u003c\/strong\u003e (paired box 5). Researchers commonly use anti-PAX5 antibodies to measure relative expression and localization across biological samples, with assay selection guided by the listed applications (WB, IHC, Flow, ELISA).\u003c\/p\u003e\u003cp\u003eBoster Bio Anti-BSAP\/PAX5 Antibody Picoband® catalog # A00669-2. Tested in ELISA, Flow Cytometry, IHC, WB applications. This antibody reacts with Human, Mouse, Rat. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.\u003c\/p\u003e\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTarget:\u003c\/strong\u003e PAX5 — Thrombospondin-1 (paired box 5). Alternative names: Paired box protein Pax-5; B-cell-specific transcription factor; BSAP; PAX5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntibody format:\u003c\/strong\u003e Polyclonal; Rabbit IgG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecies context:\u003c\/strong\u003e Host: Rabbit, Reactivity: Human,Mouse,Rat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurification:\u003c\/strong\u003e Immunogen affinity purified.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmunogen:\u003c\/strong\u003e E.coli-derived human BSAP\/PAX5 recombinant protein (Position: Q166-K278).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular weight context:\u003c\/strong\u003e observed 45 kDa, calculated 129383 MW (reported)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProvided application(s):\u003c\/strong\u003e WB, IHC, Flow, ELISA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThese attributes help contextualize how the antibody is commonly selected (host\/clonality\/isotype\/label) and how signals are interpreted across sample types and assay formats.\u003c\/p\u003e\u003ch2\u003eBiological background\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eFunction:\u003c\/strong\u003e May play an important role in B-cell differentiation as well as neural development and spermatogenesis. Involved in the regulation of the CD19 gene, a B-lymphoid-specific target gene.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCellular localization:\u003c\/strong\u003e Nucleus.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTissue details:\u003c\/strong\u003e Expressed in natural killer (NK) cells, CD8 (+) alpha-beta and gamma-delta T-cells. Expressed on essentially all CD56+CD3- NK cells from freshly isolated PBMC. Expressed in interferon-producing killer dendritic cells (IKDCs).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBackground:\u003c\/strong\u003e Paired box protein Pax-5 is a protein that in humans is encoded by the PAX5 gene. The PAX5 gene is a member of the paired box (PAX) family of transcription factors. The central feature of this gene family is a novel, highly conserved DNA-binding domain, known as the paired box. The PAX proteins are important regulators in early development, and alterations in the expression of their genes are thought to contribute to neoplastic transformation. The PAX5 gene encodes the B-cell lineage specific activator protein (BSAP) that is expressed at early, but not late stages of B-cell differentiation. Its expression has also been detected in developing CNS and testis, therefore, PAX5 gene product may not only play an important role in B-cell differentiation, but also in neural development and spermatogenesis.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCross reactivity:\u003c\/strong\u003e No cross-reactivity with other proteins.\u003c\/p\u003e \u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eQuantitative and spatial profiling: expression patterns are increasingly studied across cell states using multiplex imaging and omics-informed validation.\u003c\/li\u003e \u003cli\u003eIsoforms and post-translational modifications: researchers often evaluate how isoform composition and PTMs can shift apparent molecular weight or localization.\u003c\/li\u003e \u003cli\u003eContext-aware interpretation: comparative studies commonly include perturbations (stimulation, inhibition, genetic models) to relate target changes to pathway behavior.\u003c\/li\u003e \u003c\/ul\u003e \u003ch2\u003eCommon research applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWestern blot (WB):\u003c\/strong\u003e compare relative target abundance and apparent size shifts (e.g., isoforms\/PTMs) across conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmunohistochemistry (IHC):\u003c\/strong\u003e assess distribution across tissue compartments and compare staining patterns between groups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow cytometry:\u003c\/strong\u003e quantify target-positive populations and compare shifts after stimulation or differentiation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAcross these uses, researchers typically interpret changes in signal as relative differences between matched sample groups, considering sample preparation and biological context.\u003c\/p\u003e \u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eApparent molecular weight can vary due to isoforms, proteolysis, glycosylation, phosphorylation, and sample preparation differences.\u003c\/li\u003e \u003cli\u003eSpecies reactivity and epitope conservation can influence observed signal patterns, especially in cross-species studies.\u003c\/li\u003e \u003cli\u003eControl concepts: include appropriate negative controls (e.g., isotype controls where relevant) and, when feasible, genetic or orthogonal controls (KO\/KD, peptide competition, or independent assays) to support interpretation.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eFor antibody reagents, monoclonal antibodies are often chosen for epitope consistency across lots, while polyclonals may recognize multiple epitopes and can show different background characteristics depending on context.\u003c\/p\u003e \u003c!-- Sources (internal): - UniProt entry for PAX5 (Q02548) — UniProt Consortium — https:\/\/www.uniprot.org\/uniprotkb\/Q02548 - Ensembl gene summary for PAX5 — Ensembl — https:\/\/www.ensembl.org - HGNC gene symbol report for PAX5 — HGNC — https:\/\/www.genenames.org - Antibody validation concepts (general) — NIH\/NCBI resources — https:\/\/www.ncbi.nlm.nih.gov --\u003e","brand":"Boster Bio","offers":[{"title":"100 ug\/vial \/ Unconjugated","offer_id":53068622791021,"sku":"A00669-2","price":370.0,"currency_code":"USD","in_stock":true},{"title":"100 ug\/vial \/ Biotin","offer_id":53069086785901,"sku":"A00669-2-Biotin","price":570.0,"currency_code":"USD","in_stock":true},{"title":"100 ug\/vial \/ Cy3","offer_id":53069086818669,"sku":"A00669-2-Cy3","price":570.0,"currency_code":"USD","in_stock":true},{"title":"100 ug\/vial \/ Fluoro488","offer_id":53069086851437,"sku":"A00669-2-Fluoro488","price":570.0,"currency_code":"USD","in_stock":true},{"title":"100 ug\/vial \/ Fluoro550","offer_id":53069086884205,"sku":"A00669-2-Fluoro550","price":570.0,"currency_code":"USD","in_stock":true},{"title":"100 ug\/vial \/ Fluoro594","offer_id":53069086916973,"sku":"A00669-2-Fluoro594","price":570.0,"currency_code":"USD","in_stock":true},{"title":"100 ug\/vial \/ FITC","offer_id":53069086949741,"sku":"A00669-2-FITC","price":570.0,"currency_code":"USD","in_stock":true},{"title":"100 ug\/vial \/ HRP","offer_id":53069086982509,"sku":"A00669-2-HRP","price":570.0,"currency_code":"USD","in_stock":true},{"title":"100 ug\/vial \/ APC","offer_id":53069087015277,"sku":"A00669-2-APC","price":820.0,"currency_code":"USD","in_stock":true},{"title":"100 ug\/vial \/ PE","offer_id":53069087048045,"sku":"A00669-2-PE","price":820.0,"currency_code":"USD","in_stock":true},{"title":"100 ug\/vial \/ Fluoro647","offer_id":53069087080813,"sku":"A00669-2-Fluoro647","price":670.0,"currency_code":"USD","in_stock":true},{"title":"100 ug\/vial \/ Carrier Free","offer_id":53069087113581,"sku":"A00669-2-carrier-free","price":370.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/a00669-2-pax5-primary-antibodies-wb-testing-1.jpg?v=1772611544","url":"https:\/\/www.ebiohippo.com\/products\/anti-bsap-pax5-antibody-picoband-bha21005179","provider":"BioHippo","version":"1.0","type":"link"}