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MABF1995-100UL Anti-PvRBP2b Antibody, clone 3E9

100 μg  
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      Replacement Information
      Catalogue NumberMABF1995-100UL
      DescriptionAnti-PvRBP2b Antibody, clone 3E9
      Alternate Names
      • Reticulocyte-binding protein 2
      Background InformationReticulocyte-binding protein 2 (UniProt: Q00799; also known as PvRBP2) is encoded by the RBP-2 (also known as RBP2) gene in Plasmodium species. PvRBP2b is an alpha-helical protein, comprising 10 alpha-helices and two very short antiparallel beta-sheets, each comprising two beta-strands. It plays a critical role in reticulocyte recognition and invasion by Plasmodium vivax. It is synthesized with a signal peptide (aa 1-21), a large extracellular domain (aa 22-2805), a short transmembrane domain (aa 2806-2826), and a cytoplasmic tail (aa 2827-2867). Plasmodium vivax is shown to preferentially invade reticulocytes that express high levels of transferrin receptor 1 (TfR1). PvRBP2b is expressed during the late-stage of Plasmodium vivax and its binding has been shown to directly correlate with the levels of TfR1 on reticulocyte surface. Treatment of reticulocytes with trypsin or chymotrypsin can cleave TfR1 from reticulocyte surface and prevent PvRBP2b binding. Clone 3E9 is shown to inhibit reticulocyte binding and block the entry of Plasmodium vivax into reticulocytes. This antibody binds to the side of the N-terminal domain of PvRBP2b to a region localized between helices alpha 4, 5 and 6. (Ref.: Gruszczyk, J., et al. (2018). Science 359(6371); 48-55; Gruszczyk, J., et al. (2018). Nature. 559(7712); 135-139).
      Product Information
      PresentationPurified mouse monoclonal antibody IgG2a in PBS without azide.
      ApplicationAnti-PvRBP2b, clone 3E9, Cat. No. MABF1995, is a mouse monoclonal antibody that detects Reticulocyte-binding protein 2 in Plasmodium vivax and has been tested for use in ELISA, Flow Cytometry, Inhibition/ Function Assay, and Western Blotting.
      Key Applications
      • ELISA
      • Flow Cytometry
      • Inhibits Activity/Function
      • Western Blotting
      Application NotesInhibits Activity/Function Analysis: A representative lot inhibited PvRBP2b binding to reticulocytes and blocked the invasion of P. vivax into reticulocytes. (Gruszczyk, J., et. al. (2018). Science. 359(6371):48-55).

      Flow Cytometry Analysis: A representative lot detected PvRBP2b in Flow Cytometry applications (Gruszczyk, J., et. al. (2018). Science. 359(6371):48-55).

      Enzyme Immunoassay Analysis: A representative lot detected PvRBP2b in ELISA applications (Gruszczyk, J., et. al. (2018). Science. 359(6371):48-55).

      Biological Information
      ImmunogenHis-tagged recombinant fragment corresponding to 1294 amino acids from the N-terminal half of Plasmodium vivax Reticulocyte-binding protein 2 (PvRBP2b).
      Epitopeextracellular domain
      ConcentrationPlease refer to lot specific datasheet.
      SpecificityClone 3E9 is a mouse monoclonal antibody that specifically detects Reticulocyte binding protein 2b (PvRBP2b) in Plasmodium vivax.
      Species Reactivity
      • Parasite
      Species Reactivity NotePlasmodium vivax.
      Antibody TypeMonoclonal Antibody
      Entrez Gene Number
      Gene Symbol
      • RBP-2
      • RBP2
      Purification MethodProtein G purified
      UniProt Number
      Molecular Weight~120-150 kDa observed; 331.44 kDa calculated (for full length 2pVRBP2b). Uncharacterized bands may be observed in some lysate(s).
      Physicochemical Information
      Materials Information
      Toxicological Information
      Safety Information according to GHS
      Safety Information
      Product Usage Statements
      Quality AssuranceEvaluated by Western Blotting in Plasmodium vivax under non-reducing conditions.

      Western Blotting Analysis: A 1:1,000 dilution of this antibody detected purified Reticulocyte-binding protein from Plasmodium vivax (2PvRBP2b) under non-reducing conditions.
      Usage Statement
      • Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
      Storage and Shipping Information
      Storage ConditionsStable for 1 year at -20°C from date of receipt. Handling Recommendations: Upon receipt and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance.
      Packaging Information
      Material Size100 μg
      Transport Information
      Supplemental Information


      Anti-PvRBP2b Antibody, clone 3E9 Certificates of Analysis

      TitleLot Number
      Anti-PvRBP2b, clone 3E9 - Q3238887Q3238887


      Reference overviewPub Med ID
      Transferrin receptor 1 is a reticulocyte-specific receptor for Plasmodium vivax.
      Gruszczyk, J; Kanjee, U; Chan, LJ; Menant, S; Malleret, B; Lim, NTY; Schmidt, CQ; Mok, YF; Lin, KM; Pearson, RD; Rangel, G; Smith, BJ; Call, MJ; Weekes, MP; Griffin, MDW; Murphy, JM; Abraham, J; Sriprawat, K; Menezes, MJ; Ferreira, MU; Russell, B; Renia, L; Duraisingh, MT; Tham, WH
      Science  359  48-55  2018

      Show Abstract
      29302006 29302006