UniProt functional annotation for J1IY24

UniProt code: J1IY24.

Organism: Bartonella birtlesii LL-WM9.
Taxonomy: Bacteria; Proteobacteria; Alphaproteobacteria; Rhizobiales; Bartonellaceae; Bartonella.
 
Function: Confers DNA tethering and processivity to DNA polymerases and other proteins. Acts as a clamp, forming a ring around DNA (a reaction catalyzed by the clamp-loading complex) which diffuses in an ATP- independent manner freely and bidirectionally along dsDNA. Initially characterized for its ability to contact the catalytic subunit of DNA polymerase III (Pol III), a complex, multichain enzyme responsible for most of the replicative synthesis in bacteria; Pol III exhibits 3'-5' exonuclease proofreading activity. The beta chain is required for initiation of replication as well as for processivity of DNA replication. {ECO:0000256|PIRNR:PIRNR000804}.
 
Subunit: Forms a ring-shaped head-to-tail homodimer around DNA. {ECO:0000256|PIRNR:PIRNR000804}.
Subcellular location: Cytoplasm {ECO:0000256|ARBA:ARBA00004496, ECO:0000256|PIRNR:PIRNR000804}.
Similarity: Belongs to the beta sliding clamp family. {ECO:0000256|ARBA:ARBA00010752, ECO:0000256|PIRNR:PIRNR000804}.

Annotations taken from UniProtKB at the EBI.