{"product_id":"anti-pentraxin-3-rabbit-monoclonal-antibody-bha21009512","title":"Anti-Pentraxin 3 Rabbit Monoclonal Antibody","description":"\u003ch2\u003eOverview\u003c\/h2\u003e \u003cp\u003eThis product is an anti-PTX3 antibody for target detection and characterization. Key identifiers include host species: Rabbit; Monoclonal; clone 20P14; isotype IgG; reactivity: Human,Mouse. Reported application contexts include WB, Flow (as provided in the source record). Boster Bio Anti-Pentraxin 3 Rabbit Monoclonal Antibody catalog # M00649-1. Tested in WB, Flow Cytometry applications. This antibody reacts with Human, Mouse.\u003c\/p\u003e \u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eTarget:\u003c\/strong\u003e PTX3 (DNA-dependent protein kinase catalytic subunit).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntibody format:\u003c\/strong\u003e Monoclonal; clone 20P14; isotype IgG.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHost:\u003c\/strong\u003e Rabbit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecies reactivity:\u003c\/strong\u003e Human,Mouse (confirm in your model system with appropriate controls).\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eThis description is intended to help interpret the antibody design and the biological context of the target using the fields provided in the catalog record, alongside general experimental considerations.\u003c\/p\u003e \u003ch2\u003eBiological background\u003c\/h2\u003e \u003cp\u003ePTX3 (protein: T-cell surface glycoprotein CD4) is a commonly studied target in molecular and cellular biology. Functional context (as provided): Serine\/threonine-protein kinase that acts as a molecular sensor for DNA damage. Involved in DNA non-homologous end joining (NHEJ) required for double-strand break (DSB) repair and V (D)J recombination. Must be bound to DNA to express its catalytic properties. Promotes processing of hairpin DNA structures in V (D)J recombination by activation of the hairpin endonuclease artemis (DCLRE1C). The assembly of the DNA-PK complex at DNA ends is also required for the NHEJ ligation step. Required to protect and align broken ends of DNA. May also act as a scaffold protein to aid the localization of DNA repair proteins to the site of damage. Found at the ends of chromosomes, suggesting a further role in the maintenance of telomeric stability and the prevention of chromosomal end fusion. Also involved in modulation of transcription. Recognizes the substrate consensus sequence [ST]-Q. Phosphorylates 'Ser-139' of histone variant H2AX\/H2AFX, thereby regulating DNA damage response mechanism. Phosphorylates DCLRE1C, c-Abl\/ABL1, histone H1, HSPCA, c-jun\/JUN, p53\/TP53, PARP1, POU2F1, DHX9, SRF, XRCC1, XRCC1, XRCC4, XRCC5, XRCC6, WRN, MYC and RFA2. Can phosphorylate C1D not only in the presence of linear DNA but also in the presence of supercoiled DNA. Ability to phosphorylate p53\/TP53 in the presence of supercoiled DNA is dependent on C1D. Contributes to the determination of the circadian period length by antagonizing phosphorylation of CRY1 'Ser-588' and increasing CRY1 protein stability, most likely through an in machanism. Interacts with CRY1 and CRY2; negatively regulates CRY1 phosphorylation. . Reported cellular localization context: Nucleus. Nucleus, nucleolus. Tissue expression notes (as provided): Found in plasma and platelets and in endothelial, hepatoma and fibrosarcoma cells.\u003c\/p\u003e \u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eResearch context keywords from the source record include: 2339,DNA\/RNA,DNA Damage \u0026amp; Repair,DNA Damage Response,Epigenetics and Nuclear Signaling.\u003c\/li\u003e\n\u003cli\u003eCurrent studies often focus on connecting target abundance\/localization to pathway perturbations across models, tissues, and cell states.\u003c\/li\u003e\n\u003cli\u003eQuantitative and multiplexed assays (e.g., imaging + immunoblot panels) are commonly used to compare phenotypes across conditions and time-courses.\u003c\/li\u003e \u003c\/ul\u003e \u003ch2\u003eCommon research applications\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eWestern blotting (WB):\u003c\/strong\u003e assess relative target abundance across samples, treatments, or time-points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow cytometry:\u003c\/strong\u003e quantify target-positive populations and compare shifts in marker distributions.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eWorkflow ideas (metafield): Validate PTX3 antibody specificity using KO\/KD control samples (WB\/IF\/IHC as appropriate), Detect PTX3 expression by Western blot in cell or tissue lysates, Quantify PTX3-positive cells by flow cytometry in single-cell suspensions\u003c\/p\u003e \u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eConsider isoforms and post-translational modifications (PTMs) that may shift apparent molecular weight or epitope accessibility.\u003c\/li\u003e\n\u003cli\u003eApparent molecular weight may vary by sample type and processing (observed MW: 42 kDa; calculated MW: 469089 MW).\u003c\/li\u003e\n\u003cli\u003eControl concepts: include appropriate negative controls (e.g., isotype, KO\/KD samples) and orthogonal validation when feasible.\u003c\/li\u003e \u003c\/ul\u003e \u003ch2\u003eAdditional product details (from the source record)\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular weight (observed):\u003c\/strong\u003e 42 kDa\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCellular localization (provided):\u003c\/strong\u003e Nucleus. Nucleus, nucleolus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTissue details (provided):\u003c\/strong\u003e Found in plasma and platelets and in endothelial, hepatoma and fibrosarcoma cells.\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!-- Sources (internal): - Antibodies — a laboratory manual overview — Cold Spring Harbor Protocols — https:\/\/cshprotocols.cshlp.org\/ - UniProt Knowledgebase — UniProt — https:\/\/www.uniprot.org\/ - NCBI Gene — NCBI — https:\/\/www.ncbi.nlm.nih.gov\/gene\/ - Antibody validation and reproducibility — Nature methods (collections) — https:\/\/www.nature.com\/collections\/ - Immunohistochemistry\/Immunofluorescence basics — NIH \/ NCBI Bookshelf — https:\/\/www.ncbi.nlm.nih.gov\/books\/ --\u003e","brand":"Boster Bio","offers":[{"title":"100 uL\/vial \/ Unconjugated","offer_id":53071974695277,"sku":"M00649-1","price":370.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/m00649-1-wb.jpg?v=1772619018","url":"https:\/\/www.ebiohippo.com\/products\/anti-pentraxin-3-rabbit-monoclonal-antibody-bha21009512","provider":"BioHippo","version":"1.0","type":"link"}