Quantitative ELISA - Murine IgA Standard

Harvard Medical School
Vaccine & Virology Research
Research Fellow

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Company:

Sigma-Aldrich

Product Name:

IgA, Kappa murine myeloma

Catalog Number:

M1421

It is of interest to measure antigen specific or total IgA concentrations in murine serum or mucosal secretions. To quantify the amount of IgA, a standard is required from which a quantitative ELISA is read. This IgA standard reviewed here provides accurate, precise and reproducible IgA standard curves in a murine ELISA protocol.

Experimental Design and Results Summary

Application

Quantitative ELISA

Starting Material

Monoclonal TEPC 15, purified immunoglobulin, buffered aqueous solution

Protocol Overview

The IgA, Kappa murine meloma is diluted to a concentration of 1000 ng/ml in PBS/1%BSA/0.05%Tween20, before serially dilutions depending upon the required standard curve.

Tips

Confirm protein concentration by OD 280nm reading

Results Summary

This purified IgA provides consistent, precise standard curves between quantitative ELISA plates and between experiments, from which the specific or total IgA concentration within the sample can be confidently determined.

Additional Notes

None

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Summary

The Good

Availability, efficacy

The Bad

None

The Bottom Line

A good purified murine IgA to be used as a standard in quantitative ELISAs.

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