Anti-human IgG mAb (MT145), unconjugated
Anti-human IgG mAb (MT145), unconjugated
Content
Monoclonal antibody MT145, unconjugated. Supplied at 0.5 mg/ml in PBS with 0.02% sodium azide.
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Human IgG mAb guide
Learn how to combine Mabtech’s antibodies for human IgG ELISA and ELISpot. Adjust the setup to detect either total IgG or antigen-specific IgG. Different antibody combinations of monoclonal antibodies have been selected for the detection of the human IgG subclasses in ELISA and ELISpot. There is no cross-reactivity to human IgA1, IgA2, IgM, and IgE.
Application guide: ELISA
The human IgG ELISA can be adapted to detect antigen-specific IgG or the total IgG in serum or plasma samples.
Antigen-specific IgG
Capture: Antigen
Detection mAbs: MT78/145, biotin or MT78, ALP
Total IgG
Capture mAb: MT145, unconjugated
Detection mAb: MT78, ALP
Application guide: ELISpot
The human IgG ELISpot and FluoroSpot can be adapted to detect antigen-specific IgG-secreting cells or the total IgG-secreting cells in cell samples like PBMCs.
Antigen-specific IgG
Capture:
Antigen
Detection mAbs:
MT78/145, biotin
Capture mAbs:
MT91/145, unconjugated
Detection:
Antigen-biotin
Total IgG
Capture mAbs:
MT91/145, unconjugated
Detection mAbs:
MT78/145, biotin
Get inspired!
Make sure to check out how researchers have used Mabtech's human IgG ELISA, ELISpot, and FluoroSpot kits in everything from vaccine development to SARS-CoV-2 research. You can find it all in our Publication database!
Analyte combinations in FluoroSpot
Find out which analyte combinations we have evaluated in T cell FluoroSpot and which combinations are affected by capture effects or not.
What is a capture effect?
When capture antibodies with different specificities are coated together, the capture of one cytokine may affect the secretion of other cytokines. This is usually more pronounced when studying T cell responses with polyclonal stimuli compared to antigen-specific responses. Capture effects are seldom a problem and can often be counteracted by the addition of an anti-CD28 antibody.
(1) IL-2 secreted by the activated T cell is captured by coated anti-IL-2 capture antibodies. (2) As a result, IL-2-stimulation of the T cell itself (autocrine stimulation) as well as nearby T cells (paracrine stimulation) is impaired, ultimately leading to (3) decreased IFN-γ secretion.
Co-stimulation with anti-CD28
Anti-CD28 mAb provides a co-stimulatory signal to antigen-specific responses by binding to CD28 on T cells. The addition of an anti-CD28 mAb to the cell culture enhances antigen-specific responses and can counteract capture effects. For example, the presence of IL-2 capture antibodies may result in reduced activation of T cells, as capturing of IL-2 decreases the amount of available IL-2 and thereby dampens the IL-2-mediated stimulation of T cells. The addition of anti-CD28 mAb restores IFN-γ responses (depicted in the below images). Further optimization may be necessary, depending on the cells and stimuli used. Too high concentrations of the anti-CD28 mAb may result in an elevation of non-specific cytokine secretion.
(1) An anti-CD28 antibody can be added to provide a co-stimulatory signal that can restore (2) e.g. IFN-γ responses.
How to investigate capture effects
Our FluoroSpot Plus kits are evaluated for capture effects, and in studies of T cell responses we recommend co-stimulation with anti-CD28. With FluoroSpot Flex, it is possible to combine and build your own kit. For guidance look at our analyte combination table (above). Capture effects can be investigated by quantifying spot numbers in wells coated with single capture antibodies and compared to wells coated with a mixture of the capture antibodies. The compensatory effect of the anti-CD28 mAb may be assessed by comparing cells cultured with and without the anti-CD28 mAb.
Non-human primate cross-reactivity guide
The systems reactive with NHPs are either based on cross-reactive human kits or specifically developed monkey kits (NHP).
Cross-reactivity verification tests have been performed in ELISpot and/or ELISA by Mabtech and/or by others. Evaluations of assays with less solid evidence of cross-reactivity are shown as symbols within parentheses.
| ApoA1 | |||||||||
| ApoB | |||||||||
| ApoE (NHP) | |||||||||
| ApoE | |||||||||
| ApoH | |||||||||
| CCL2 (MCP-1) | |||||||||
| CCL4 (MIP-1β) | ( ) | ( ) | ( ) | ( ) | ( ) | ||||
| CCL22 (MDC) | ( ) | ( ) | ( ) | ( ) | ( ) | ||||
| CD25 | |||||||||
| GM-CSF | ( ) | ( ) | |||||||
| Granzyme A | |||||||||
| Granzyme B (NHP) | |||||||||
| Granzyme B | |||||||||
| IFN-α2 | |||||||||
| IFN-α pan | ( ) | ||||||||
| IFN-γ (NHP) | |||||||||
| IFN-γ | ( ) | ||||||||
| IgA (NHP) | |||||||||
| IgA | |||||||||
| IgG | |||||||||
| IgM | |||||||||
| INS | |||||||||
| IL-1α | |||||||||
| IL-1β | |||||||||
| IL-2 (NHP) | |||||||||
| IL-3 | |||||||||
| IL-4 | ( ) | ( ) | ( ) | ( ) | |||||
| IL-5 | ( ) | ( ) | ( ) | ||||||
| IL-6 | ( ) | ( ) | ( ) | ||||||
| IL-8 (NHP) | |||||||||
| IL-8 (ELISA) | |||||||||
| IL-8 (ELISpot) | |||||||||
| IL-10 (NHP) | |||||||||
| IL-10 | |||||||||
| IL-12/-23 (p40) | |||||||||
| IL-12 (p70) | |||||||||
| IL-13 (NHP) | ( ) | ( ) | ( ) | ||||||
| IL-13 | |||||||||
| IL-17A (NHP) | ( ) | ( ) | |||||||
| IL-17A | |||||||||
| IL-17F | |||||||||
| IL-17A/F | |||||||||
| IL-21 | |||||||||
| IL-22 | |||||||||
| IL-23 | |||||||||
| IL-27 | |||||||||
| IL-31 | |||||||||
| IP-10 | |||||||||
| Perforin | ( ) | ||||||||
| TGF-β1 (latent) | |||||||||
| TNF-α (NHP) | ( ) | ( ) | ( ) | ( ) | ( ) | ||||
| TNF-α | |||||||||
| CD3, mAb CD3-1 | |||||||||
| CD3, mAb CD3-2 | |||||||||
| CD28, mAb CD28-A | |||||||||
| IFN-γ mAb 1-D1K | ( ) | ( ) | ( ) | ( ) | ( ) | ( ) | |||
| IL-2 mAb MT8G10 | ( ) | ( ) | ( ) | ( ) | ( ) | ( ) | ( ) | ||
| IL-4 mAb IL4-3 | ( ) | ||||||||
| IL-17A mAb MT504 | |||||||||
| Perforin mAb Pf-344 | |||||||||
| TNF-α mAb MT15B15 | |||||||||
| IgG1 mAb MTG1218 | |||||||||
| IgG1 mAb MT1939 | |||||||||
| IgG2 mAb H6200 | |||||||||
| IgG2 mAb MTG211E | |||||||||
| IgG3 mAb MTG34 | |||||||||
| IgG4 mAb MTG42 | |||||||||
| IFN-γ mAb MT111W | ( ) | ( ) | ( ) | ( ) | ( ) | ( ) | ( ) | ( ) | ( ) |
| TNF-α mAb MT15B15 | ( ) | ( ) | ( ) | ( ) | ( ) | ( ) | ( ) |
Symbol keys:
Verified by Mabtech and/or by others. Tests performed in ELISpot and/or ELISA.
- good
- poor
- no
Based on reports from others or by analysis using recombinant proteins.
- ( ) good
- ( ) poor
- ( ) no
Specifically developed monkey kits are marked with (NHP).
Blank boxesRepresent cross-reactivities not evaluated.
* Comprises several species. Cross-reactivity may have to be verified on a species basis.
Product highlights
Publications (231)
Analyte information
IgG
| Analyte description | Immunoglobulin G (IgG) is the most abundant Ig isotype in serum, making up approximately 80% of all serum immunoglobulins. In humans, there are four subclasses of immunoglobulin G, with the highest serum concentrations of IgG1 followed by IgG2, IgG3, and IgG4. In mice, the IgG subclasses are defined as IgG1, IgG2a/c, IgG2b, and IgG3. The IgG molecule consists of two heavy and two light chains (κ or λ), resulting in a molecule with two arms for antigen binding. High levels of IgG antibodies are induced following the initial IgM response in a typical immune response to antigens. |
| Alternative names | Immunoglobulin G, IgG, IgG3 |
| Cell type | B cell |
| Gene ID | 3500, 3501, 3502 |
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