Author, Donkey, Bureaucrats, Administrators
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==Overview==
==Overview==
[[Image:LH IgG.png|thumb|250px|right|'''IgG''']]
[[Image:LH IgG.png|thumb|250px|right|'''IgG''']]
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''Shortened to IgG''
''Shortened to IgG''
−IgG is the major antibody in blood plasma, and constitutes at least 80% of all antibodies in the body. It is the smallest immunoglobulin, so can readily leave the blood plasma and enter tissues.
+IgG is the major antibody in blood plasma, and constitutes at least 80% of all antibodies in the body. It is the smallest immunoglobulin, so can readily leave the blood plasma and enter tissues. They can also cross the placenta, providing adaptive immunity to the foetus when the mother is under attack. IgG is also present in breast milk.
==Structure==
==Structure==
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<br><br>
<br><br>
{{Jim Bee 2007}}
{{Jim Bee 2007}}
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[[Category:Immunoglobulins]]
[[Category:Immunoglobulins]]
[[Category:A&P Done]]
[[Category:A&P Done]]