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Literature DB >> 3930059

Cleavage of bovine immunoglobulin G1 in whey by an extracellular material from Brucella abortus.

Abstract

Culture extracts of in vitro grown Brucella abortus were demonstrated to cleave a part of the Fc portion of bovine immunoglobulin G1 in whey but not in serum or as a purified protein from serum. Supernates from Strains 19 and 2308 of B. abortus were both capable of this hydrolysis whereas living cells were not. The cleavage process was independent of antibody activity to B. abortus, appeared to require factor(s) found only in some whey samples and was ineffective with the other bovine immunoglobulins.

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Year: 1985 PMID： 3930059 PMCID： PMC1236183

Source DB: PubMed Journal: Can J Comp Med ISSN： 0008-4050

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References

14 in total

4. The occurrence of immunoglobulin fragments, two types of lactoferrin and a lactoferrin-IgG2 complex in bovine colostral and milk whey.

Authors: J E Butler
Journal: Biochim Biophys Acta Date: 1973-01-25

5. Partial gamma1 fragment is a 'natural' bovine IgG1 fragment without detectable class-specific gamma determinants.

Authors: B A Bokhout
Journal: Nature Date: 1978-01-26 Impact factor: 49.962

6. IgG hydrolysis in abscesses. I. A study of the IgG in human abscess fluid.

Authors: M Waller
Journal: Immunology Date: 1974-04 Impact factor: 7.397

7. Distribution of Brucella antibody among immunoglobulin classes and a low molecular weight antibody fraction in serum and whey of cattle.

Authors: K J Beh
Journal: Res Vet Sci Date: 1973-05 Impact factor: 2.534

Cleavage of bovine immunoglobulin G1 in whey by an extracellular material from Brucella abortus.

1. [A micro-method of immuno-electrophoresis].

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3. Production of an Fc fragment from human immunoglobulin A by an IgA-specific bacterial protease.

4. The occurrence of immunoglobulin fragments, two types of lactoferrin and a lactoferrin-IgG2 complex in bovine colostral and milk whey.

5. Partial gamma1 fragment is a 'natural' bovine IgG1 fragment without detectable class-specific gamma determinants.

6. IgG hydrolysis in abscesses. I. A study of the IgG in human abscess fluid.

7. Distribution of Brucella antibody among immunoglobulin classes and a low molecular weight antibody fraction in serum and whey of cattle.

8. Hemoparasitism, humoral immunodeficiency, and an IgG1 fragment in a cow.

9. Evaluation of antibovine IgG subclass specific antisera from guinea pigs and goats.

10. Differential susceptibility of human IgA immunoglobulins to streptococcal IgA protease.