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Studies on human IgD—II:The lack of skin sensitizing and complement fixing activities of immunoglobulin D

Authors
Journal
Immunochemistry
0019-2791
Publisher
Elsevier
Publication Date
Volume
6
Issue
3
Identifiers
DOI: 10.1016/0019-2791(69)90300-0
Disciplines
  • Biology

Abstract

Abstract Immunoglobulin D preparations isolated from three different myeloma sera failed to elicit reversed passive cutaneous anaphylaxis reactions in guinea pigs. Although the proteins aggregated readily with bisdiazotized benzidine, the aggregates did not fix complement and caused no increase in the vascular permeability of guinea pig skin. Under identical conditions human IgG preparations gave positive reactions in all tests. It is concluded that immunoglobulin D, both in its native and aggregated forms, lacks the structural features necessaru for skin binding and complement fixation.

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