<P> The membrane attack complex ( MAC ) or terminal complement complex ( TCC ) is a structure typically formed on the surface of pathogen cell membranes as a result of the activation of the host 's complement system , and as such is one of the effector proteins of the immune system . The membrane - attack complex ( MAC ) forms transmembrane channels . These channels disrupt the cell membrane of target cells , leading to cell lysis and death . </P>
<P> The membrane attack complex ( MAC ) or terminal complement complex ( TCC ) is a structure typically formed on the surface of pathogen cell membranes as a result of the activation of the host 's complement system , and as such is one of the effector proteins of the immune system . The membrane - attack complex ( MAC ) forms transmembrane channels . These channels disrupt the cell membrane of target cells , leading to cell lysis and death . </P>
lysis of a pathogen by mac formation is an example of
lysis of a pathogen by mac formation is an example of
membrane attack complex ( MAC ) or terminal complement complex ( TCC )
membrane attack complex ( MAC ) or terminal complement complex ( TCC )