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#** Forms C4b2¯b3b.
 
#** Forms C4b2¯b3b.
 
#*** This activates C5 and initiates the MAC.  
 
#*** This activates C5 and initiates the MAC.  
* Like the alternative pathway, another major effect of classical pathway activation is to produce iC3b.
+
* Like the alternative pathway, another major effect of classical pathway activation is to produce iC3b due to the actions of Factors I and H.
 
** Promotes phagocytosis and initiates inflammation.
 
** Promotes phagocytosis and initiates inflammation.
 
* All the Ca fragments (C2a, C3a, C4a, C5a) are chemotactic for neutrophils and induce of acute inflammation.
 
* All the Ca fragments (C2a, C3a, C4a, C5a) are chemotactic for neutrophils and induce of acute inflammation.
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