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**M.O** · 01-08-2010, 10:42 PM

وعليكم السلام ورحمة الله وبركاته ,,, حياك الله اخي

تقسم الاجسام مضادة IGاعتمادا على
1. M.Wt
2.Functions
3.chemical & physical properties

IgG:- M.WT=146,000 half life=23
there r 4 classes 1,2,3,4 . Is only Ig that can pass the placenta in human & it's responsible for protection of new born during there first month of life

IgA :- M.WT= 160.000 halfe life 6 daysis produce by B cells, it's most Ab found in saliva, tears, intestine mucus bronchial secretion & milk It may exists as monome or dimmer is predominant in secretion because many M.O in the respiratory

**M.O** · 01-08-2010, 10:57 PM

IgM :- M.WT =900.000 half life 10 days , it's compound of 5 monomers it can't cross the placenta it's early immune response to most Ags & it's most efficient Ig complemment fixation & opsonization

IgD:- M.WT= 184.000 half life 3 days, it's monomer that dose not fix the complement or cross the placenta , it is a recceptor for Ag or B cells & plays role in the immune suppression

IgE :- M.WT= 188.000 half life is 2 days, it is involved in the allergic disorders. high levels r found in serum of infected patient with parasites & it's exists only as a monomer

مصدر محاضرات دراسية بجامعة بغداد لسنة 2007-2008 \ د. رغد السهيل

وبالتوفيق

**dr_osama** · 02-08-2010, 07:11 PM

الملفات المرفقة
1- antibody structure
2-antibody types
اتمنى ان يكون مفيد

الملفات المرفقة

**h11md** · 04-08-2010, 12:20 AM

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اتمني الدخول الي هذا الموضوع للاهمية

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