DNA Polymerase Delta (POLD1) Antibody – Mouse Monoclonal

This gene encodes the 125-kDa catalytic subunit of DNA polymerase delta. DNA polymerase delta possesses both polymerase and 3' to 5' exonuclease activity and plays a critical role in DNA replication and repair. Alternatively spliced transcript variants have been observed for this gene, and a pseudogene of this gene is located on the long arm of chromosome 6. [provided by RefSeq, Mar 2012]

POLD1: Possesses two enzymatic activities: DNA synthesis (polymerase) and an exonucleolytic activity that degrades single stranded DNA in the 3'- to 5'-direction. Required with its accessory proteins (proliferating cell nuclear antigen (PCNA) and replication factor C (RFC) or activator 1) for leading strand synthesis. Also involved in completing Okazaki fragments initiated by the DNA polymerase alpha/primase complex. Belongs to the DNA polymerase type-B family.

Protein type: EC 2.7.7.7; Transferase; DNA repair, damage; Nucleotide Metabolism - pyrimidine; Hydrolase; Nucleotide Metabolism - purine; DNA replication

Chromosomal Location of Human Ortholog: 19q13.3

Cellular Component: nucleoplasm; delta DNA polymerase complex; nucleotide-excision repair complex; membrane; cytoplasm; nucleus

Molecular Function: protein binding; DNA binding; metal ion binding; 4 iron, 4 sulfur cluster binding; nucleotide binding; DNA-directed DNA polymerase activity; 3'-5'-exodeoxyribonuclease activity; chromatin binding

Biological Process: mismatch repair; DNA strand elongation during DNA replication; DNA repair; base-excision repair, gap-filling; telomere maintenance via semi-conservative replication; DNA synthesis during DNA repair; DNA replication proofreading; nucleotide-excision repair; base-excision repair; fatty acid homeostasis; transcription-coupled nucleotide-excision repair; telomere maintenance via recombination; mitotic cell cycle; nucleotide-excision repair, DNA gap filling; DNA replication; DNA catabolic process, exonucleolytic; telomere maintenance; response to UV

Disease: Colorectal Cancer, Susceptibility To, 10; Mandibular Hypoplasia, Deafness, Progeroid Features, And Lipodystrophy Syndrome