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Structure of IgG and IgY molecules in ribosome-antibody complexes as studied by electron microscopy.

Posted by on in 1980-1984
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Noll F, Lutsch G, Bielka H
Immunol Lett 1982 Mar 4:117-23


The overall shape and dimensions of IgG (rabbit) and IgY (chicken) antibodies against ribosomal proteins have been studied in electron micrographs of ribosome-antibody complexes. The antibodies appear as Y-shaped molecules with an angle of about 90 degrees between their Fab arms. The length of one Fab arm amounts to about 10 nm. No differences between the IgG and IgY molecules could be detected electron microscopically. The data obtained on the shape of IgG and IgY correlate with those of earlier electron microscopic studies while the determined size of the Fab arms is in the range found by scattering methods.

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