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Science 17 November 1967:
Vol. 158. no. 3803, pp. 933 - 936
DOI: 10.1126/science.158.3803.933
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Articles

Ultrastructure of Gamma M Immunoglobulin and Alpha Macroglobulin: Electron-Microscopic Study

S-E. Svehag 1, B. Chesebro 1, and B. Bloth 2

1 Department of Immunology, National Bacteriological Laboratory, Stockholm 1, Sweden
2 Department of Virus Research, Karolinska Institute School of Medicine, Stockholm 1, Sweden

Electron microscopy of purified Waldenström macroglobulins and normal human and rabbit ggrM immunoglobulins revealed spider-like structures with five legs varying in length and often joining a central ring. Usually only the central more rigid part of this structure (about 150 by 170 angstroms) was clearly visible, but occasionally particles were seen with longer very flexible legs having a total span of about 350 angstroms. Molecules of ggrM antibody retained antibody activity during preparation for electron microscopy. Human and rabbit alpha macroglobulins revealed more rigid symmetric structures (100 by 200 angstroms) which resembled the Russian letter .


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Ultrastructure of Secretory and High-Polymer Serum Immunoglobulin A of Human and Rabbit Origin.
S- E. Svehag and B. Bloth (1970)
Science 168, 847-849
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Science. ISSN 0036-8075 (print), 1095-9203 (online)