This domain lies at the C-terminus of the delta subunit of the DNA polymerase III clamp loader gamma complex. Within the complex the several C-terminal domains, of gamma, delta and delta' form a helical scaffold, on which the rest of he subunits are hung. The gamma complex, an AAA+ ATPase, is the bacterial homologue of the eukaryotic replication factor C that loads the sliding clamp (beta, homologous to PCNA) onto DNA.

1: Crystal structure of the processivity clamp loader gamma (gamma) complex of E. coli DNA polymerase III. Jeruzalmi D, O'Donnell M, Kuriyan J; Cell. 2001;106:429-441. PMID:11525729