The effect of receptor rapid‐internalization signals on diphtheria toxin endocytosis and cell sensitivity

Diphtheria toxin enters toxin‐sensitive mammalian cells by receptor‐mediated endocytosis employing the heparin‐binding EGF‐like growth factor precursor as its receptor. We reported previously (Almond and Eidels, 1994) that cytoplasmic domain mutants of the toxin receptor and cells expressing wild‐ty...

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