Table 3.

Division of toxins into hemolysins and leukotoxins in relation to the amino acids at the conserved KI and KII positions of HlyA

ToxinActivityPosition of:Total no. of amino acids
KIKII
HlyAHemolysinK564a K690a 1,024
EhxAEnterohemorrhagic hemolysinK550K675998
ApxIAHemolysinK560K6861,022
ApxIIAHemolysinK557N687956
ApxIIIALeukotoxinK571K7021,049
AaltALeukotoxinK562K6871,050
AshAHemolysinK557N687956
LktALeukotoxinK554N684953
PllktALeukotoxinK550S680947
CyaAAdenylate cyclase/hemolysinK860K983a 1,706
  • a Identified as acylated residue in in vivo-expressed toxin.