<prompt> Superantigens true is -They bind to the left of the MHCNeeds to processed before presentationThey are presented by APCS to T cellsDirectly attached to lateral aspect of TCR b chain  <response>: Superantigens are a class of antigens that cause non-specific activation of T-cells resulting in polyclonal T cell activation and massive cytokine release. Superantigens bind first to the MHC Class II and then coordinate to the variable alpha or beta chain of T-cell Receptors . Reff: Ananthanarayan Panikers textbook of microbiology 9th edition pg:90 