Assay restriction profiles of three monoclonal antibodies recognizing the G3m(u) allotype. Development of an allotype specific assay

P N Nelson; S M Fletcher; D MacDonald; D M Goodall; R Jefferis

doi:10.1016/0022-1759(91)90064-m

Assay restriction profiles of three monoclonal antibodies recognizing the G3m(u) allotype. Development of an allotype specific assay

J Immunol Methods. 1991 Apr 8;138(1):57-64. doi: 10.1016/0022-1759(91)90064-m.

Authors

P N Nelson¹, S M Fletcher, D MacDonald, D M Goodall, R Jefferis

Affiliation

¹ Department of Immunology, Medical School, University of Birmingham, U.K.

PMID: 2019747
DOI: 10.1016/0022-1759(91)90064-m

Abstract

Three monoclonal antibodies raised against a purified human IgG3 paraprotein were found to exhibit a restriction profile for IgG3/G3m(u) and pan-IgG specificity which was dependent on the assay system. When adapted to an IgG3 subclass capture ELISA, all three McAbs discriminated between paraproteins expressing G3m(u) and antithetical markers G3m(st). One of the antibodies (PNF69C) was selected and conditions were optimised for Gm typing purposes. Using this system G3m(u) could be detected on captured IgG3 derived from human sera. This system may prove useful in the elucidation of Gm allotype profiles.

MeSH terms

Animals
Antibodies, Monoclonal*
Antibody Specificity
Enzyme-Linked Immunosorbent Assay
Humans
Immunoglobulin G / classification*
Immunoglobulin Gm Allotypes / analysis*
Mice
Mice, Inbred BALB C

Substances

Antibodies, Monoclonal
Immunoglobulin G
Immunoglobulin Gm Allotypes