Corynebacterium diphtheriae toxin Ab:PrThr:Pt:Ser:Ord
corynebacterium diphtheriae toxin ab:prthr:pt:ser:ord
Corynebacterium diphtheriae toxin Ab:PrThr:Pt:Ser:Ord
corynebacterium diphtheriae toxin ab:prthr:pt:ser:ord