A study of the effects of salt and of pH on precipitation of Antigen-antibody compounds

A - Papers appearing in refereed journals

Kleczkowski, A. 1965. A study of the effects of salt and of pH on precipitation of Antigen-antibody compounds. Immunology. 8 (2), pp. 170-181.

AuthorsKleczkowski, A.
Abstract

Tobacco mosaic virus (TMV) combines with its homologous antibody to much the same extent irrespective of whether or not salt is present, but without salt the complex not only fails to precipitate, but the virus particles do not aggregate. TMV—antibody precipitate formed in the presence of salt, like that formed between human serum albumin (HSA) and its homologous antibody, dissolves when suspended in distilled water to form stable and transparent solutions, although the precipitate may not disaggregate completely.

To dissolve HSA—antibody complex in distilled water, the pH of the water must be raised to about 7.0. At pH near 6.0, HSA—antibody complex precipitates even in the absence of salt, but the precipitate dissolves immediately when the pH is raised to 7.0.

All these facts are incompatible with the theory of precipitation based on the `lattice hypothesis', and argue strongly in favour of the theory that antigen—antibody complexes are hydrophobic and, as such, flocculate when sufficiently discharged either by salt or by suitably adjusting the pH of the medium.

Year of Publication1965
JournalImmunology
Journal citation8 (2), pp. 170-181
Web address (URL)https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1423430/pdf/immunology00433-0046.pdf
Open accessPublished as bronze (free) open access
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Publisher copyright
Output statusPublished
Publication dates
Print01 Feb 1965
ISSN1365-2567
PublisherWiley

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