{"product_id":"marco-antibody-macrophage-receptor-with-collagenous-structure-bha17136204","title":"MARCO Antibody \/ Macrophage receptor with collagenous structure","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eMARCO Antibody \/ Macrophage receptor with collagenous structure is a anti-MARCO Rabbit antibody Polyclonal (rabbit origin) supplied in Lyophilized format. Recommended for workflows such as Western blot (WB), Flow cytometry (FACS), ELISA with listed reactivity in Human.\u003c\/p\u003e\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTarget:\u003c\/strong\u003e MARCO\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, FACS, ELISA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBiological background\u003c\/h2\u003e\u003cdiv\u003eMARCO antibody detects the Macrophage receptor with collagenous structure, a class A scavenger receptor encoded by the MARCO gene located on chromosome 2q14.2. MARCO is a type II membrane glycoprotein primarily expressed on macrophages, especially in the spleen, lymph nodes, and alveolar tissues. Structurally, the receptor contains a short cytoplasmic tail, a transmembrane domain, a coiled-coil stalk, and a large extracellular collagenous domain ending with a scavenger receptor cysteine-rich (SRCR) domain. These structural regions enable MARCO to bind and internalize a wide variety of microbial ligands, apoptotic debris, and environmental particles, making it a critical component of innate immunity.\u003cbr\u003e\u003cbr\u003eAs a pattern recognition receptor (PRR), MARCO recognizes both Gram-positive and Gram-negative bacterial components, including lipopolysaccharides, lipoteichoic acids, and bacterial DNA. Through its SRCR domain, MARCO antibody detects the receptor�s role in phagocytosis and immune surveillance. Upon ligand binding, MARCO facilitates pathogen uptake and triggers downstream signaling pathways that regulate inflammation and macrophage activation. It cooperates with other receptors such as TLR2, TLR4, and CD14 to enhance recognition and clearance of pathogens. Functionally, MARCO acts as both a scavenger and adhesion molecule, mediating macrophage binding to microbial surfaces and extracellular matrix components.\u003cbr\u003e\u003cbr\u003eMARCO expression is inducible by inflammatory stimuli such as lipopolysaccharide (LPS), interferon gamma, and bacterial infection. In the lung, alveolar macrophages expressing MARCO are essential for clearance of inhaled pathogens and environmental particulates, protecting against infection and tissue damage. Experimental models show that MARCO-deficient mice have impaired clearance of Streptococcus pneumoniae, Listeria monocytogenes, and Mycobacterium tuberculosis, emphasizing its importance in pulmonary immunity. The receptor also binds oxidized lipids and apoptotic cells, participating in tissue remodeling and atherosclerosis prevention.\u003cbr\u003e\u003cbr\u003eMARCO is part of the macrophage scavenger receptor family that includes SR-A1 (MSR1) and SCARA5. Among these, MARCO is distinguished by its extended collagenous domain and unique ligand specificity. Structurally, the SRCR domain coordinates divalent metal ions required for ligand interaction and receptor clustering on the cell surface. The receptor forms trimers stabilized by disulfide bonds, allowing it to crosslink and internalize large particles. In addition to macrophages, MARCO can be transiently expressed on dendritic cells and certain epithelial cells under inflammatory conditions.\u003cbr\u003e\u003cbr\u003eDisease associations highlight MARCO's dual role in host defense and inflammation. Variants in the MARCO gene have been linked to increased susceptibility to pulmonary tuberculosis and chronic obstructive pulmonary disease (COPD). Dysregulated MARCO expression contributes to granulomatous inflammation and altered immune responses in respiratory disorders. In neuroinflammation, microglial MARCO participates in clearance of amyloid-beta aggregates, suggesting a role in Alzheimer�s disease pathology. Moreover, tumor-associated macrophages expressing MARCO promote immunosuppression in certain cancers, making the receptor a target of emerging cancer immunotherapies aimed at reprogramming macrophage activity.\u003cbr\u003e\u003cbr\u003eImmunohistochemical staining using MARCO antibody reveals strong membrane and cytoplasmic localization in splenic red pulp macrophages, alveolar macrophages, and Kupffer cells of the liver. This antibody serves as a key reagent in studying macrophage differentiation, pathogen-host interaction, and innate immune mechanisms. MARCO antibody from\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\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=MARCO - NCBI Gene search — NCBI — https:\/\/www.ncbi.nlm.nih.gov\/gene\/?term=MARCO - Ensembl search — Ensembl — https:\/\/www.ensembl.org\/Multi\/Search\/Results?q=MARCO - Human Protein Atlas search — HPA — https:\/\/www.proteinatlas.org\/search\/MARCO - PubMed (review) — NLM — https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=MARCO+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":53047321952621,"sku":"FY13302","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/get_image_0bdb3fa9-ed48-45fe-aa0f-90cb8356703c.jpg?v=1782237109","url":"https:\/\/www.ebiohippo.com\/products\/marco-antibody-macrophage-receptor-with-collagenous-structure-bha17136204","provider":"BioHippo","version":"1.0","type":"link"}