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AB157709

Human Kappa ELISA Kit

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(4 Publications)

Human Kappa ELISA Kit is a sandwich ELISA designed to quantify Human Kappa with a sensitivity of 1.8304 ng/mL.

- Colorimetric sandwich ELISA - 450 nm readout - works on any plate reader
- Wide dynamic range - quantifies 6.25 - 200 ng/mL

View Alternative Names

Immunoglobulin kappa constant, Ig kappa chain C region, Ig kappa chain C region AG, Ig kappa chain C region CUM, Ig kappa chain C region EU, Ig kappa chain C region OU, Ig kappa chain C region ROY, Ig kappa chain C region TI, IGKC

3 Images
Sandwich ELISA - Human Kappa ELISA Kit (AB157709)
  • sELISA

Unknown

Sandwich ELISA - Human Kappa ELISA Kit (AB157709)

Kappa measured in biological fluids, background signal subtracted (duplicates +/- SD).

Sandwich ELISA - Human Kappa ELISA Kit (AB157709)
  • sELISA

Supplier Data

Sandwich ELISA - Human Kappa ELISA Kit (AB157709)

Representative standard curve using ab157709 Kappa Human ELISA Kit.

Sandwich ELISA - Human Kappa ELISA Kit (AB157709)
  • sELISA

Supplier Data

Sandwich ELISA - Human Kappa ELISA Kit (AB157709)

Representative standard curve using ab157709 Kappa Human ELISA Kit.

Key facts

Detection method

Colorimetric

Sample types

Plasma, Serum, Other biological fluids

Reacts with

Human

Assay type

Sandwich

Results type

Quantitative

Sensitivity

= 1.8304 ng/mL

Range

6.25 - 200 ng/mL

Assay Platform

Microplate

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "sELISA": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }

Product details

Human Kappa ELISA Kit ab157709 is a sandwich ELISA to measure Human Kappa in serum, plasma, other biological fluids with a sensitivity of 1.8304 ng/ml.

How the assay works

In this assay the Kappa present in samples reacts with the anti-Kappa antibodies which have been adsorbed to the surface of polystyrene microtiter wells. After the removal of unbound proteins by washing, anti-Kappa antibodies conjugated with horseradish peroxidase (HRP), are added. These enzyme-labeled antibodies form complexes with the previously bound Kappa. Following another washing step, the enzyme bound to the immunosorbent is assayed by the addition of a chromogenic substrate, 3,3',5,5'-tetramethylbenzidine (TMB). The quantity of bound enzyme varies directly with the concentration of Kappa in the sample tested; thus, the absorbance, at 450 nm, is a measure of the concentration of Kappa in the test sample. The quantity of Kappa in the test sample can be interpolated from the standard curve constructed from the standards, and corrected for sample dilution.

Assay Specificity

Our ELISA kits are rigorously validated to ensure the highest level of consistency and reproducibility. Please check the protocol booklet for more details

Human Kappa ELISA Kit ab157709 protocol summary

1. Add standard or sample to each well used. Incubate at room temperature.
2. Aspirate and wash each well.
3. Add prepared HRP labeled secondary detector antibody. Incubate at room temperature
4. Aspirate and wash each well.
5. Add Chromogen Substrate Solution to each well.
6. Immediately begin recording the color development

Precision

[ { "reproducibilityType": "Inter", "sample": "Overall", "replicates": 0, "mean": null, "standardDeviation": null, "coefficientOfVariability": "< 10" }, { "reproducibilityType": "Intra", "sample": "Overall", "replicates": 0, "mean": null, "standardDeviation": null, "coefficientOfVariability": "< 10" } ]

Recovery

[ { "sample": "Serum", "range": null, "average": "> 85" } ]

What's included?

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Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
Multi
Storage information
Please refer to protocols

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

The kappa light chain alternatively known as Ig kappa chain is a component of immunoglobulins which are important for immune response. This protein has a molecular mass of roughly 25 kDa. It predominantly expresses in B lymphocytes where it pairs with heavy chains to form antibodies. Its expression is indicative of mature B cell functions serving as a marker for certain types of immune cells. The kappa light chain can also be detected outside of cells circulating in the blood and other bodily fluids.
Biological function summary

Kappa light chains are integral to the structure and function of antibodies. As part of the immunoglobulin molecule these chains contribute to antigen specificity by combining with heavy chains. Together they form the antigen-binding site. The kappa light chain is not part of a multiprotein complex; rather it directly participates in the antibody response. The presence of either kappa or lambda light chains can determine the particularities of antibody characteristics.

Pathways

Kappa light chains are elements of the immunological pathways notably the adaptive immune response. They interact with other proteins like immunoglobulin heavy chains to neutralize pathogens. The constant region of the kappa chain plays a role in determining the isotype of immunoglobulins which affects how antibodies mediate immune effector functions. Cross-linking of surface immunoglobulin by antigens can trigger B cell activation an essential step in the adaptive immune system.

Kappa light chains associate closely with multiple myeloma and certain types of lymphomas. Overproduction of kappa light chains in these diseases results in high levels detectable in the serum or urine which can be used diagnostically as markers. Also dysregulation of kappa chains correlates with autoimmune disorders whereby the immune system incorrectly targets its tissues. In disorders like these the interplay between kappa and lambda chains often arises showing imbalance between the two as a sign of abnormal B cell activity.

Product protocols

Target data

Constant region of immunoglobulin light chains. Immunoglobulins, also known as antibodies, are membrane-bound or secreted glycoproteins produced by B lymphocytes. In the recognition phase of humoral immunity, the membrane-bound immunoglobulins serve as receptors which, upon binding of a specific antigen, trigger the clonal expansion and differentiation of B lymphocytes into immunoglobulins-secreting plasma cells. Secreted immunoglobulins mediate the effector phase of humoral immunity, which results in the elimination of bound antigens (PubMed : 20176268, PubMed : 22158414). The antigen binding site is formed by the variable domain of one heavy chain, together with that of its associated light chain. Thus, each immunoglobulin has two antigen binding sites with remarkable affinity for a particular antigen. The variable domains are assembled by a process called V-(D)-J rearrangement and can then be subjected to somatic hypermutations which, after exposure to antigen and selection, allow affinity maturation for a particular antigen (PubMed : 17576170, PubMed : 20176268).
See full target information IGKC

Publications (4)

Recent publications for all applications. Explore the full list and refine your search

Pharmaceutics 16: PubMed39458643

2024

A Human Brain-Chip for Modeling Brain Pathologies and Screening Blood-Brain Barrier Crossing Therapeutic Strategies.

Applications

Unspecified application

Species

Unspecified reactive species

Shek Man Chim,Kristen Howell,Alexandros Kokkosis,Brian Zambrowicz,Katia Karalis,Elias Pavlopoulos

Cell death & disease 15:588 PubMed39138149

2024

Dihydrolipoamide dehydrogenase (DLD) is a novel molecular target of bortezomib.

Applications

Unspecified application

Species

Unspecified reactive species

Yu Feng,Hongmei Luo,Jingcao Huang,Yue Zhang,Jingjing Wen,Linfeng Li,Ziyue Mi,Qianwen Gao,Siyao He,Xiang Liu,Xinyu Zhai,Xin Wang,Li Zhang,Ting Niu,Yuhuan Zheng

JCI insight 7: PubMed36040812

2022

ISG20L2 suppresses bortezomib antimyeloma activity by attenuating bortezomib binding to PSMB5.

Applications

Unspecified application

Species

Unspecified reactive species

Yan Yang,Yuhan Gao,Jingcao Huang,Zhuang Yang,Hongmei Luo,Fangfang Wang,Juan Xu,Yushan Cui,Hong Ding,Zhimei Lin,Xinyu Zhai,Ying Qu,Li Zhang,Ting Liu,Lingqun Ye,Ting Niu,Yuhuan Zheng

Scientific reports 11:4087 PubMed33602999

2021

Cerebrospinal fluid proteome shows disrupted neuronal development in multiple sclerosis.

Applications

Unspecified application

Species

Unspecified reactive species

Ellen F Mosleth,Christian Alexander Vedeler,Kristian Hovde Liland,Anette McLeod,Gerd Haga Bringeland,Liesbeth Kroondijk,Frode Steingrimsen Berven,Artem Lysenko,Christopher J Rawlings,Karim El-Hajj Eid,Jill Anette Opsahl,Bjørn Tore Gjertsen,Kjell-Morten Myhr,Sonia Gavasso
View all publications
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