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Rekombinanter SARS-CoV-2 Spike S1 Antikörper (RBD)

Dieses Rabbit Chimeric-Antikörper erkennt spezifisch SARS-CoV-2 Spike S1 in ELISA, IF, Crys, SPR. Er zeigt eine Reaktivität gegenüber SARS Coronavirus-2 (SARS-CoV-2), SARS Coronavirus (SARS-CoV), SARS CoV-2 Alpha, SARS CoV-2 Beta, SARS CoV-2 Epsilon, SARS CoV-2 Gamma, SARS CoV-2 Eta, SARS CoV-2 Kappa und wurde in 5+ Publikationen erwähnt.
Produktnummer ABIN6952547

Kurzübersicht für Rekombinanter SARS-CoV-2 Spike S1 Antikörper (RBD) (ABIN6952547)

Target

Alle SARS-CoV-2 Spike S1 Antikörper anzeigen
SARS-CoV-2 Spike S1

Antikörpertyp

Recombinant Antibody

Reaktivität

  • 45
  • 5
  • 3
  • 2
  • 2
  • 2
  • 1
  • 1
  • 1
  • 1
SARS Coronavirus-2 (SARS-CoV-2), SARS Coronavirus (SARS-CoV), SARS CoV-2 Alpha, SARS CoV-2 Beta, SARS CoV-2 Epsilon, SARS CoV-2 Gamma, SARS CoV-2 Eta, SARS CoV-2 Kappa

Wirt

  • 18
  • 9
  • 9
  • 3
  • 2
  • 2
  • 1
  • 1
  • 1
Kaninchen

Klonalität

  • 34
  • 8
  • 4
Chimeric

Konjugat

  • 40
  • 3
  • 1
  • 1
  • 1
Dieser SARS-CoV-2 Spike S1 Antikörper ist unkonjugiert

Applikation

  • 46
  • 10
  • 7
  • 6
  • 4
  • 4
  • 4
  • 4
  • 3
  • 3
  • 3
  • 2
  • 1
  • 1
  • 1
ELISA, Immunofluorescence (IF), Crystallization (Crys), Surface Plasmon Resonance (SPR)

Klon

CR3022
  • Highlights

    • Recombinant human neutralizing antibody (hNAb) against SARS-CoV-2.
    • Binds SARS-CoV-2 S proteins of lineages B.1.1.7 (alpha), B.1.351 (beta), P.1 (gamma), B.1.429 (epsilon), and B.1.525 (eta).
    • Frequently used as reference in S-protein ELISAs and neutralization assays.
    • Synergizes with other hNAbs: binds a highly conserved epitope.
    • No interference with the ACE2 binding site.

    Bindungsspezifität

    • 12
    • 3
    • 2
    • 2
    • 1
    RBD

    Verwendungszweck

    Recombinant monoclonal antibody to COVID-19 & SARS-CoV S glycoprotein.

    Spezifität

    The chimeric SARS-CoV S1 antibody (CR3022) binds the amino acids 318-510 in the S1 domain of the SARS-CoV Spike protein as well as SARS-CoV-2 (COVID-19) Spike protein. The antibody also binds to P462L-substituted S318-510 fragments of the SARS spike protein. The binding epitope is only accessible in the "open" conformation of the spike protein (Joyce et al. 2020).

    While most S-protein RBD binding antibodies compete for antigen binding with ACE2, the CR3022 epitope does not overlap with the ACE2-binding site. It does thus not hinder binding of neutralizing antibodies. While CR3022 on its own exhibits only a weak neutralizing effect, it has been shown to synergize with other S-protein RBD binding antibodies to neutralize SARS-CoV. This effect still has to be confirmed in context with SARS-CoV-2 (Yuan et al. 2020).

    Kreuzreaktivität (Details)

    The anti-SARS-CoV-2 antibody (CR3022) was originally discovered in a SARS patient, but it was shown to be a potent binder of SARS-CoV-2 spike protein (S1).

    Produktmerkmale

    Original Species of Ab: Human

    Original Format of Ab: IgG1

    Aufreinigung

    Protein A affinity purified

    Immunogen

    The original monoclonal antibody was generated through an scFv library derived from a peripheral blood lymphocytes of a patient exposed to the SARS-CoV.

    Isotyp

    IgG kappa
  • Applikationshinweise

    This antibody binds to both SARS-CoV and SARS-CoV-2 with high affinity (PMID: 16796401 & 32065055). The initial characterization of the binding of this antibody was performed by ELISA and indicates potential for the development of diagnostic assays, as both virus-capture assays, or as controls in serological assays measuring immune-responses to virus exposure. Human IgG1, IgG3, IgM and IgA isotypes are available to mimic antibody responses seen in COVID19 < a href="https://www.medrxiv.org/content/10.1101/2020.03.17.20037713v1" target="_blank">(Amanat et al. 2020). Human IgG2 and IgG4 subtypes, which are also seen in a small subset of COVID-19 patients, are also available to investigate their role in the response to SARS-CoV-2. The original human IgG1 version of the antibody works synergistically in combination with another non-ompeting SARS antibody CR3014 and is a potential candidate for passive immune prophylaxis of SARS-CoV infection (Meulen et al., 2006). The original antibody (human IgG1) was also reported to bind the 2019-nCoV RBD (KD of 6.3 nM). This antibody has been attributed a potential to be developed as a therapeutic agent, alone or in combination with other neutralizing antibodies for treatment of 2019-nCoV infections (Tian et al., 2020). Bates et al. 2021 (PMID: 32766589) used CR3022 in a immunofluorescence assay.

    Kommentare

    This chimeric rabbit antibody was made using the variable domain sequences of the original Human IgG1 format, for improved compatibility with existing reagents, assays and techniques.

    Beschränkungen

    Nur für Forschungszwecke einsetzbar
  • Format

    Liquid

    Konzentration

    1 mg/mL

    Buffer

    PBS with 0.02 % Proclin 300.

    Konservierungsmittel

    ProClin

    Vorsichtsmaßnahmen

    This product contains ProClin: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.

    Lagerung

    4 °C,-20 °C

    Informationen zur Lagerung

    Store at 4°C for up to 3 months. For longer storage, aliquot and store at -20°C.
  • Xing, Dorey, Jayasinghe, Howorka: "Highly shape- and size-tunable membrane nanopores made with DNA." in: Nature nanotechnology, (2022) (PubMed).

    Tian, Li, Huang, Xia, Lu, Shi, Lu, Jiang, Yang, Wu, Ying: "Potent binding of 2019 novel coronavirus spike protein by a SARS coronavirus-specific human monoclonal antibody." in: Emerging microbes & infections, Vol. 9, Issue 1, pp. 382-385, (2020) (PubMed).

    Stadlbauer, Amanat, Chromikova, Jiang, Strohmeier, Arunkumar, Tan, Bhavsar, Capuano, Kirkpatrick, Meade, Brito, Teo, McMahon, Simon, Krammer: "SARS-CoV-2 Seroconversion in Humans: A Detailed Protocol for a Serological Assay, Antigen Production, and Test Setup." in: Current protocols in microbiology, Vol. 57, Issue 1, pp. e100, (2020) (PubMed).

    Yuan, Wu, Zhu, Lee, So, Lv, Mok, Wilson: "A highly conserved cryptic epitope in the receptor-binding domains of SARS-CoV-2 and SARS-CoV." in: Science (New York, N.Y.), (2020) (PubMed).

    ter Meulen, van den Brink, Poon, Marissen, Leung, Cox, Cheung, Bakker, Bogaards, van Deventer, Preiser, Doerr, Chow, de Kruif, Peiris, Goudsmit: "Human monoclonal antibody combination against SARS coronavirus: synergy and coverage of escape mutants." in: PLoS medicine, Vol. 3, Issue 7, pp. e237, (2007) (PubMed).

  • Target

    SARS-CoV-2 Spike S1

    Substanzklasse

    Viral Protein

    Hintergrund

    Spike protein, COVID19, COVID 19, S protein, SARS-CoV S protein, S glycoprotein, E2, Peplomer protein, Spike protein S1, SARS Coronavirus, SARS-CoV-2, SARS CoV 2, 2019-nCoV, Ab1680.10, Ab1680.15, Ab1680.16

    UniProt

    P59594
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