Possible Cross-Reactivity of Feline and White-Tailed Deer Antibodies against the SARS-CoV-2 Receptor Binding Domain

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Abstract

We report cross-reactive antibodies from prepandemic cats and postpandemic South Carolina white-tailed deer that are specific for that SARS-CoV RBD. There are several potential explanations for this cross-reactivity, each with important implications to coronavirus disease surveillance.

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  1. SciScore for 10.1101/2021.12.17.473265: (What is this?)

    Please note, not all rigor criteria are appropriate for all manuscripts.

    Table 1: Rigor

    Ethicsnot detected.
    Sex as a biological variablenot detected.
    Randomizationnot detected.
    Blindingnot detected.
    Power Analysisnot detected.
    Cell Line Authenticationnot detected.

    Table 2: Resources

    Antibodies
    SentencesResources
    After 1 hour, wells were washed 3x with PBS-T and a secondary antibody for that species was added (i.e., HRP goat-anti-human IgG, Rockland Immunochemicals, Pottstown, PA, USA; HRP goat-anti-dog IgG, Bethyl Laboratories, Montgomery, TX, USA; HRP goat-anti-cat IgG, Invitrogen, Waltham, MA, USA; HRP goat-anti-guinea pig IgG, Life Technologies Corp, Carlsbad, CA, USA; HRP rabbit-anti-deer IgG, KPL, Gaithersburg, MD, USA; HRP sheep-anti-cow IgG, Bethyl Laboratories, Montgomery, TX, USA) at dilutions of 1:10,000 (anti-human, cat, dog, tiger) or 1:250 (
    IgG
    suggested: None
    pig IgG
    suggested: None
    anti-human , cat , dog , tiger
    suggested: None
    Primary antibodies of HRP conjugated mouse anti-6His (Proteintech, Rosemont, IL, USA) at 1:5,000 or polyclonal serum samples at 1:20 were incubated on blots at room temperature for 2 hours and subsequently washed 2x with TBS-T (Tris Buffered Saline with 0.1% Tween-20).
    anti-6His
    suggested: None
    Experimental Models: Cell Lines
    SentencesResources
    Recombinant RBD purification: Supernatants from transfected HEK-293 T17 cells were collected into 50mL conical tubes and frozen at days 3 and 6 post-transfection.
    HEK-293 T17
    suggested: None
    Recombinant DNA
    SentencesResources
    Vector pCAGGS contains the SARS-related coronavirus 2, Wuhan-Hu-1
    pCAGGS
    suggested: RRID:Addgene_127347)
    To produce recombinant RBD, the pCAGGS-RBD plasmid was transfected into ∼5×107 adherent HEK-293/T17 cells (ATCC CRL-11268) in a T-175 using PEI (
    pCAGGS-RBD
    suggested: None
    Software and Algorithms
    SentencesResources
    OD450 values for each species and titration were graphed in GraphPad Prism ver. 8
    GraphPad Prism
    suggested: (GraphPad Prism, RRID:SCR_002798)
    Sequences were viewed using 4Peaks software (Nucleobytes, Amsterdam, Netherlands)
    4Peaks
    suggested: (4Peaks, RRID:SCR_000015)
    Sequences from fecal samples were Clustal W aligned to common coronaviruses, trimmed and a phylogenetic tree generated using Maximum-Likelihood method for each positive loci using MEGA X [58, 59].
    MEGA
    suggested: (Mega BLAST, RRID:SCR_011920)
    (GraphPad Software, San Diego, CA, USA).
    GraphPad
    suggested: (GraphPad Prism, RRID:SCR_002798)

    Results from OddPub: Thank you for sharing your data.


    Results from LimitationRecognizer: An explicit section about the limitations of the techniques employed in this study was not found. We encourage authors to address study limitations.

    Results from TrialIdentifier: No clinical trial numbers were referenced.


    Results from Barzooka: We did not find any issues relating to the usage of bar graphs.


    Results from JetFighter: We did not find any issues relating to colormaps.


    Results from rtransparent:
    • No conflict of interest statement was detected. If there are no conflicts, we encourage authors to explicit state so.
    • No funding statement was detected.
    • No protocol registration statement was detected.

    Results from scite Reference Check: We found no unreliable references.


    About SciScore

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