Description
Product Characteristics:
DNA polymerase lambda (pol Kappa), also designated DNA polymerase Kappa or Pol Beta2, is a low-fidelity polymerase which plays a role in both spontaneous and DNA damage-induced mutagenesis. Encoded by the POLL gene, pol Kappa is a member of the DNA polymerase type-X family. Pol Kappa extends primer-terminal mispairs opposite nondamaged DNA templates, suggesting that it may assist in extending mismatched base pairs during normal DNA replication. In addition, pol Kappa may play a role in the mutagenic bypass of T-T dimers. Proliferating cell nuclear antigen (PCNA), a protein essential to DNA replication, interacts with pol Kappa and thus influences the ability of pol Kappa to synthesize DNA.
Subcellular location: Nucleus
Synonyms: DNA polymerase kappa, DINB protein, Short=DINP, POLK_HUMAN.
Target Information: External and internal DNA-damaging agents continually threaten the integrity of genetic material in cells. Although a variety of repair mechanisms exist to remove the resulting lesions, some lesions escape repair and block the replication machinery. Members of the Y family of DNA polymerases, such as POLK, permit the continuity of the replication fork by allowing replication through such DNA lesions. Each Y family polymerase has a unique DNA-damage bypass and fidelity profile. POLK is specialized for the extension step of lesion bypass (summary by Lone et al., 2007 [PubMed 17317631]).[supplied by OMIM, Jan 2010]