ELISpot Path: SARS-CoV-2 (Omicron BA.1, S1 scan) Human IFN-γ

ELISpot Path: SARS‑CoV‑2 (Omicron BA.1, S1 scan) Human IFN‑γ

3420-4AST-P13-1

Publications: 17
Documents
Questions?
A straightforward setup for functional analysis of a specific scientific question.

Components

PlatePre-coated ELISpot plate, strip (mAb 1-D1K)
Detection mAb7-B6-1, biotin
Enzyme conjugateStreptavidin-ALP
SubstrateBCIP/NBT-plus
Positive controlAnti-CD3 mAb (CD3-2)
Co-stimulusAnti-CD28 mAb (CD28-A)
Peptide poolSARS-CoV-2 Omicron BA.1 (S1), scanning

In stock

Delivery 4-9 business days

Shipping $0

Product specifications

Intended use

This ELISpot Path kit is intended for the enumeration of cells secreting human IFN-γ in response to SARS-CoV-2 (Omicron BA.1, S1 scan) peptides using the ELISpot assay. For research use only. Not for use in diagnostic procedures.

Serum/Plasma samples

Peptide pool composition
The SARS-CoV-2 (Omicron BA.1) S1 scanning pool contains 168 peptides from the human SARS-CoV-2 virus variant Omicron (B.1.1.529), lineage BA.1. The peptides are 15-mers overlapping with 11 amino acids, covering the S1 domain of the spike protein. The peptide pool contains mutations: A67V, Δ69-70, T95I, G142D, Δ143-145, Δ211, L212I, ins214EPE, G339D, S371L, S373P, S375F, K417N, N440K, G446S, S477N, T478K, E484A, Q493R, G496S, Q498R, N501Y, Y505H, T547K, D614G, H655Y, N679K, P681H of Omicron BA.1 spike S1.

Recommendation

Product details

ProductELISpot Path: SARS-CoV-2 (Omicron BA.1, S1 scan) Human IFN-γ
ApplicationELISpot
AnalyteIFN-γ
ReactivityHuman
Specificity

This kit is based on a matched pair of mAbs specific for human IFN-γ.

Shipping and Storage

Shipping

Shipped at ambient temperature.

Storage

Store antibodies, enzyme conjugate, and substrate at 4-8 °C. Peptide pools should be stored at -20 °C or below. Plates may be kept at room temperature.

Shelf lifeAt least 18 months from date of receipt.
Human PBMC (250,000 cells/well) from a SARS-CoV-2 convalescent individual were incubated overnight in the absence or presence of the SARS-CoV-2 (Omicron BA.1) S1 defined peptide (vials 1+2) and anti-CD28 mAb. The number of cells secreting IFN-γ was analyzed by ELISpot.
Datasheet/Protocol
SDS

Highlighted research, Published October 28, 2024

Immunoassays for infectious disease research
Explore the role of immunoassays like ELISpot and FluoroSpot in infectious disease research. Discover how Mabtech's immunoassays enable researchers to study immune responses at the cellular level for diseases like TB, SARS-CoV-2, Malaria, HIV, and more.

Highlighted research, Published May 17, 2022

Third vaccine dose important for T cell response against Omicron
Three doses mRNA vaccine had better T cell responses than recipients of two doses. Mabtech IRIS and FluoroSpot Flex: Human IFN-γ/TNF-α/IL-2/Granzyme B were used to assess T cell immunity in mRNA vaccine recipients.

Highlighted research, Published December 16, 2021

SARS-CoV-2-specific immune responses in patients with autoimmune diseases
Patients with rheumatic diseases showed T cell responses comparable to healthy control. Patients with MS and after mRNA vaccination show different memory B cell IgG responses. SARS-CoV-2 specific immune responses in autoimmunity was analyzed using FluoroSpot, ELISpot Path, and Mabtech IRIS.

Highlighted research, Published December 2, 2021

Importance of studying SARS-CoV-2-specific memory B cells
When studying antibodies in circulation, remember that memory B cells might hide out of sight. In this study, detection of SARS-CoV-2-specific T and memory B cells 6 and 15 months after infection.

Highlighted research, Published November 24, 2021

Polyfunctional T cells with Mabtech IRIS
Study of development and persistence of virus-specific cellular and humoral immune responses, during the acute phase and two follow-ups after COVID-19 disease in hospitalized patients. Mabtech’s FluoroSpot Plus: Human IFN-γ/IL-2/TNF-α were analyzed with Mabtech IRIS.

Highlighted research, Published June 30, 2020

T cell immunity in COVID-19
Much emphasis has been put on antibody responses, but also T cells are important in the context of COVID-19. In this study, the authors characterized SARS-CoV-2-specific T cell responses by using an extensive FACS panel, peptide stimulations, tetramer staining, and Mabtech IFN-γ ELISpot.

Tutorial, Published November 24, 2022

Cell stimulation in ELISpot and FluoroSpot
In this feature, we’ll walk you through the optimal use of different polyclonal and antigen-specific stimuli.

Tutorial, Published November 7, 2022

7 common ELISpot errors and how to avoid them
ELISpot troubleshooting. We discuss 7 of the most common issues we’ve encountered in ELISpot, what mistakes causes them and how to avoid and correct them.

Tutorial, Published October 14, 2022

What is a positive ELISpot response?
DFR is a non-parametric statistical test for determining positive responses in ELISpot and FluoroSpot.

Tutorial, Published September 2, 2022

Isolation, freezing, and thawing of PBMCs
This is a protocol on how to best isolate, freeze, and thaw PBMCs.
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IFN-γ

Analyte description

Interferon-γ (IFN-γ) is the only type II interferon. This proinflammatory cytokine is secreted by activated T cells and NK cells. It activates macrophages and endothelial cells and regulates immune responses by affecting APCs, T cells, and B cells. Production of IFN-γ by helper T cells and cytotoxic T cells is a hallmark of the Th1-type phenotype. Thus, high-level production of IFN-γ is typically associated with effective host defense against intracellular pathogens.

Alternative namesInterferon-γ, Interferon-gamma, IFN-γ, IFN-gamma, IFN-g, IFNg, IFG, IFI, IMD69
Cell typeT cell, Tc, Th1, NK cell
Gene ID3458