What are the differences between endotoxins and exotoxins?

Endotoxins are structural (LPS) while exo are released after transcription/ translation pathway. Endo are highly antigenic attach to non-specific proteins, while exo need to be attached to specific receptors. Endo stimulate immunity by presence of cells, while exo by antigen binding Endo have no antibodies while exo are targeted by ones Endo is only in gram- while exo for gram + and - Endo is LPS while exo is polypeptide Endo is heat stable (stay toxic with heat) while endo is heat labile Endo are potent (all same strength) while exo are non-potent.