"Forms the sliding-clamp-loader together with the small subunit. Functions as an ATPase enzyme. The clamp loader holds the clamp in an open conformation and places it onto the DNA. 4 ATP molecules must bind to the sliding-clamp-loader before the latter can open the sliding clamp. ATP hydrolysis triggers the detachment of the sliding clamp from the sliding-clamp-loader, freeing the sliding clamp to track along DNA."xsd:string