{"product_id":"biolegend-313233","title":"Biolegend, 313233, Alexa Fluor® 488 anti-human CD117 (c-kit) Antibody, 25tests","description":"\u003cp\u003eCD117 is a 145 kD protein tyrosine kinase also known as c-Kit. It is a receptor for stem cell factor or c-Kit ligand. CD117 is expressed on pluripotent hematopoietic progenitor cells (approximately 1-4% bone marrow cells), mast cells, and acute myeloid leukemia cells (AML). CD117 binding of c-Kit ligand induces phosphorylation of CD117 and stimulates proliferation and survival of primitive hematopoietic stem cells as well as erythroid-committed and granulo-monocytic committed cells.\u003cbr\u003e\n25tests\u003cbr\u003e\nVerified Reactivity: Human\u003cbr\u003e\nReported Reactivity: Cynomolgus, Cow\u003cbr\u003e\nAntibody Type: Monoclonal\u003cbr\u003e\nHost Species: Mouse\u003cbr\u003e\nImmunogen: MOLM-1 megakaryocytic cell line\u003cbr\u003e\nFormulation: Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and BSA (origin USA)\u003cbr\u003e\nPreparation: The antibody was purified by affinity chromatography and conjugated with Alexa Fluor® 488 under optimal conditions.\u003cbr\u003e\nConcentration: Lot-specific (to obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.)\u003cbr\u003e\nStorage \u0026amp; Handling: The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.\u003cbr\u003e\nApplication: FC - Quality tested SB - Reported in the literature, not verified in house\u003cbr\u003e\nRecommended Usage: Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is 5 µl per million cells in 100 µl staining volume or 5 µl per 100 µl of whole blood. * Alexa Fluor® 488 has a maximum emission of 519 nm when it is excited at 488 nm. Alexa Fluor® and Pacific Blue™ are trademarks of Life Technologies Corporation.View full statement regarding label licenses\u003cbr\u003e\nExcitation Laser: Blue Laser (488 nm)\u003cbr\u003e\nApplication Notes: The 104D2 antibody does not block binding of c-Kit ligand. Additional reported applications (for the relevant formats) include: immunoprecipitation1, immunofluorescence microscopy1, and spatial biology (IBEX)4,5.\u003cbr\u003e\nAdditional Product Notes: Iterative Bleaching Extended multi-pleXity (IBEX) is a fluorescent imaging technique capable of highly-multiplexed spatial analysis. The method relies on cyclical bleaching of panels of fluorescent antibodies in order to image and analyze many markers over multiple cycles of staining, imaging, and, bleaching. It is a community-developed open-access method developed by the Center for Advanced Tissue Imaging (CAT-I) in the National Institute of Allergy and Infectious Diseases (NIAID, NIH).\u003cbr\u003e\nApplication References(PubMed link indicates BioLegend citation): Broudy VC, et al. 1999. Blood 94:1979. (IF, IP) Yoshino N, et al. 2000. Exp. Anim. (Tokyo) 49:97. (FC) Nagano M, et al. 2007. Blood 110:151. (FC) PubMed Radtke AJ, et al. 2020. Proc Natl Acad Sci U S A. 117:33455-65. (SB) PubMed Radtke AJ, et al. 2022. Nat Protoc. 17:378-401. (SB) PubMed\u003cbr\u003e\nProduct Citations: Wegmann R, et al. 2024. Nat Commun. 9402:15. PubMed\u003cbr\u003e\nRRID: AB_2566220 (BioLegend Cat. No. 313233) AB_2566221 (BioLegend Cat. No. 313234)\u003cbr\u003e\nStructure: Growth factor receptor with tyrosine kinase activity, subclass III, approximately 145 kD\u003cbr\u003e\nDistribution: Pluripotent hematopoietic progenitor cells (approximately 1-4% bone marrow cells), mast cells, acute myeloid leukemic cells (AML)\u003cbr\u003e\nFunction: Growth factor receptor for stem cell factor. Induces proliferation and survival of primitive hematopoietic progenitors. Potent inducer of proliferation in erythroid-committed progenitor cells. Defects in CD117 have been linked to severe anemia and a decreased number of hematopoietic progenitor cells.\u003cbr\u003e\nLigand\/Receptor: c-Kit ligand\u003cbr\u003e\nModification: Multiple phosphorylation sites\u003cbr\u003e\nCell Type: Embryonic Stem Cells, Hematopoietic stem and progenitors, Leukemia, Mast cells, Mesenchymal Stem Cells\u003cbr\u003e\nBiology Area: Immunology, Stem Cells\u003cbr\u003e\nMolecular Family: CD Molecules\u003cbr\u003e\nAntigen References: 1. Giebel LB, et al. 1992. Oncogene 7:2207. 2. Furitsu T, et al. 1993. J. Clin. Invest. 92:1736.\u003cbr\u003e\nGene ID: 3815\u003cbr\u003e\nUniProt: View information about CD117 on UniProt.org\u003cbr\u003e\nClone: 104D2\u003cbr\u003e\nRegulatory Status: RUO\u003cbr\u003e\nOther Names: Stem cell factor receptor, c-kit, mast cell growth factor receptor, steel factor receptor\u003cbr\u003e\nIsotype: Mouse IgG1, κ\u003cbr\u003e\nQ: If an antibody clone has been previously successfully used in IBEX in one fluorescent format, will other antibody formats work as well?\u003cbr\u003e\nA: It’s likely that other fluorophore conjugates to the same antibody clone will also be compatible with IBEX using the same sample fixation procedure. Ultimately a directly conjugated antibody’s utility in fluorescent imaging and IBEX may be specific to the sample and microscope being used in the experiment. Some antibody clone conjugates may perform better than others due to performance differences in non-specific binding, fluorophore brightness, and other biochemical properties unique to that conjugate.\u003cbr\u003e\nQ: Will antibodies my lab is already using for fluorescent or chromogenic IHC work in IBEX?\u003cbr\u003e\nA: Fundamentally, IBEX as a technique that works much in the same way as single antibody panels or single marker IF\/IHC. If you’re already successfully using an antibody clone on a sample of interest, it is likely that clone will have utility in IBEX. It is expected some optimization and testing of different antibody fluorophore conjugates will be required to find a suitable format; however, legacy microscopy techniques like chromogenic IHC on fixed or frozen tissue is an excellent place to start looking for useful antibodies.\u003cbr\u003e\nQ: Are other fluorophores compatible with IBEX?\u003cbr\u003e\nA: Over 18 fluorescent formats have been screened for use in IBEX, however, it is likely that other fluorophores are able to be rapidly bleached in IBEX. If a fluorophore format is already suitable for your imaging platform it can be tested for compatibility in IBEX.\u003cbr\u003e\nQ: The same antibody works in one tissue type but not another. What is happening?\u003cbr\u003e\nA: Differences in tissue properties may impact both the ability of an antibody to bind its target specifically and impact the ability of a specific fluorophore conjugate to overcome the background fluorescent signal in a given tissue. Secondary stains, as well as testing multiple fluorescent conjugates of the same clone, may help to troubleshoot challenging targets or tissues. Using a reference control tissue may also give confidence in the specificity of your staining.\u003cbr\u003e\nQ: How can I be sure the staining I’m seeing in my tissue is real?\u003cbr\u003e\nA: In general, best practices for validating an antibody in traditional chromogenic or fluorescent IHC are applicable to IBEX. Please reference the Nature Methods review on antibody based multiplexed imaging for resources on validating antibodies for IBEX.\u003c\/p\u003e","brand":"Biolegend","offers":[{"title":"Default Title","offer_id":46860773490857,"sku":"313233","price":0.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/iright.com\/products\/biolegend-313233","provider":"Iright","version":"1.0","type":"link"}