PMID: 7333635Jan 1, 1981Paper

Genetic control of the immune response to myoglobin. V. Analysis of the cross-reactivity of 12 myoglobins with sperm-whale myoglobin antisera of inbred mouse strains in terms of substitutions in the antigenic sites and in the environmental residues of the sites

Immunological Communications
M Z AtassiC S David

Abstract

The determination of the entire antigenic structure of myoglobin has made it possible to focus attention on the molecular factors controlling and influencing immune recognition. Recently, using antisera raised against sperm-whale myoglobin (Mb) in six different host species and investigating their reactions with Mb from 15 species, we showed that the binding capacity of an antigenic site is influenced by substitutions within site residues as well as within the residues close (within 6.0 å) to the sites. Based on these effects it was possible to correlate, at least in qualitative terms, the expected effects of the substitutions in each Mb and its observed cross-reaction with antisera to sperm-whale Mb. In the present work, these correlations were tested using sperm-whale Mb antibodies raised in four inbred mouse strains and in which the amount of antibodies directed to each antigenic site was determined. The amounts of 125I-labelled antibodies that could be bound maximally be each of 12 Mb variants were determined. Because of genetic control, the response to some antigenic sites was not expressed and therefore permitted us to evaluate with a good degree of confidence the effects of amino acid replacements in various myoglobins u...Continue Reading

References

Feb 20, 1976·Biochimica Et Biophysica Acta·A E Romero-HerreraO Castillo

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