FIGURE 4.
MecA-(121–218) facilitates oligomerization of ClpC and interaction with ClpP. A, the formation of a stable binary complex between MecA-(121–218) and ClpC in the absence of exogenous ATP or ADP. MecA-(121–218) was co-eluted from gel filtration together with ClpC DWB, indicating the formation of a stable binary complex. The asterisk denotes the position of a contaminating protein. mAU, milliabsorbance units. B, assembly of a stable ternary complex among MecA-(121–218), ClpC, and ClpP. ClpP and ClpC DWB only formed a stable ternary complex in the presence of MecA and ATP.