{"product_id":"sipa1-antibody-signal-induced-proliferation-associated-1-bha17135781","title":"SIPA1 Antibody \/ Signal-induced proliferation-associated 1","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eSIPA1 Antibody \/ Signal-induced proliferation-associated 1 is a anti-SIPA1 Rabbit antibody Polyclonal (rabbit origin) supplied in Lyophilized format. Recommended for workflows such as Western blot (WB), Immunocytochemistry (ICC), Immunofluorescence (IF), Flow cytometry (FACS), ELISA with listed reactivity in Human, Mouse, Rat. Reported localization: Nuclear, Perinuclear.\u003c\/p\u003e\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTarget:\u003c\/strong\u003e SIPA1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntibody details:\u003c\/strong\u003e Rabbit, Polyclonal (rabbit origin), isotype Rabbit IgG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e Lyophilized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications (as listed):\u003c\/strong\u003e WB, ICC\/IF, FACS, ELISA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBiological background\u003c\/h2\u003e\u003cdiv\u003eSIPA1 antibody detects Signal-induced proliferation-associated 1, a Rap GTPase-activating protein (GAP) involved in cell adhesion, migration, and cell cycle progression. Encoded by the SIPA1 gene on chromosome 11q13.1, this signaling molecule terminates Ras-related protein Rap1 and Rap2 signaling by accelerating GTP hydrolysis, thereby modulating integrin-mediated adhesion and mitogenic responses. SIPA1 plays a crucial role in immune cell trafficking, vascular remodeling, and tumor metastasis suppression.\u003cbr\u003e\u003cbr\u003eStructurally, SIPA1 contains an N-terminal RapGAP domain responsible for GTPase activation, a PDZ domain that mediates protein-protein interactions, and a C-terminal coiled-coil domain that regulates subcellular localization. It is predominantly localized to the cytoplasm and nucleus, where it integrates extracellular growth and adhesion cues with downstream transcriptional and cytoskeletal responses. SIPA1 interacts with integrins and focal adhesion components, influencing adhesion turnover and migration.\u003cbr\u003e\u003cbr\u003eThe SIPA1 antibody is widely used in cell signaling, oncology, and vascular biology research to study Rap GTPase regulation, adhesion signaling, and cancer cell dissemination. Western blot analysis detects a 120 kilodalton band corresponding to SIPA1, while immunofluorescence shows cytoplasmic and nuclear staining in epithelial and immune cells. This antibody enables characterization of Rap1 deactivation and adhesion dynamics under physiological and pathological conditions.\u003cbr\u003e\u003cbr\u003eFunctionally, SIPA1 acts as a metastasis suppressor by downregulating integrin signaling and preventing excessive adhesion and proliferation. Reduced expression or loss of SIPA1 disrupts Rap1 regulation, leading to enhanced cell spreading, migration, and metastasis formation in several cancers. In immune cells, SIPA1 modulates adhesion to vascular endothelium and migration across tissue barriers, linking Rap signaling to immune surveillance and inflammation. The SIPA1 antibody supports studies aimed at understanding how RapGAP activity integrates with cytoskeletal and transcriptional control mechanisms.\u003c\/div\u003e\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eConnecting protein-level changes to phenotype using orthogonal readouts (genetic perturbation, transcriptomics, imaging).\u003c\/li\u003e\n\u003cli\u003eConsidering isoforms and post-translational regulation when interpreting protein-level changes.\u003c\/li\u003e\n\u003cli\u003eComparing results across species and model systems with matched controls.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon research applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWestern blotting:\u003c\/strong\u003e compare relative abundance and activation-state changes across conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmunofluorescence:\u003c\/strong\u003e visualize subcellular distribution and cell-to-cell heterogeneity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow cytometry:\u003c\/strong\u003e quantify target-positive populations and signal shifts at single-cell resolution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eELISA:\u003c\/strong\u003e support antibody-based quantification in assay formats where applicable.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eInterpret changes in signal alongside appropriate controls and, when relevant, in parallel with total-protein or pathway readouts.\u003c\/p\u003e\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSignal can reflect expression level, isoform composition, and post-translational state; interpret results in the context of your model system and stimuli.\u003c\/li\u003e\n\u003cli\u003eSpecies differences and sample matrices can influence epitope recognition; prioritize matched controls and orthogonal confirmation when feasible.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAntibody notes:\u003c\/strong\u003e Polyclonal antibodies recognize multiple epitopes, which can broaden the epitope footprint and may increase sensitivity in some contexts.\u003c\/p\u003e\u003c!-- Sources (internal): - UniProt search — UniProt — https:\/\/www.uniprot.org\/uniprotkb?query=SIPA1 - NCBI Gene search — NCBI — https:\/\/www.ncbi.nlm.nih.gov\/gene\/?term=SIPA1 - Ensembl search — Ensembl — https:\/\/www.ensembl.org\/Multi\/Search\/Results?q=SIPA1 - Human Protein Atlas search — HPA — https:\/\/www.proteinatlas.org\/search\/SIPA1 - PubMed (review) — NLM — https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=SIPA1+review --\u003e","brand":"NSJ Bioreagents","offers":[{"title":"Adding 0.2 ml of distilled water will yield a concentration of 500 ug\/ml \/ 100 ug","offer_id":53047304782189,"sku":"FY12879","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/get_image_68c84e51-7d9d-4873-beba-7ad735ac83f6.jpg?v=1782237053","url":"https:\/\/www.ebiohippo.com\/products\/sipa1-antibody-signal-induced-proliferation-associated-1-bha17135781","provider":"BioHippo","version":"1.0","type":"link"}