Anti Bodies
Antibodies of the IgG class

are secreted into the bloodstream
are glycoproteins
All of these
consist of four subunits

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Anti Bodies
Papain digest IgG into

two Fab fragments and one Fc fragment
three Fab fragments and two Fc fragments
two Fab fragments and two Fc fragments
three Fab fragments and three Fc fragments

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Anti Bodies
The immunoglobulin fold is

a β-barrel composed of a three- and a four-stranded antiparallel β-sheet
found six times in the IgG molecule
found only in IgG molecules
both (a) and (b)

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