PDIP46 (DNA polymerase δ interacting protein 46) is an activating factor for human DNA polymerase δ

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PDIP46 (DNA polymerase δ interacting protein 46) is an activating factor for human DNA polymerase δ

PDIP46 (SKAR, POLDIP3) was discovered through its interaction with the p50 subunit of human DNA polymerase δ (Pol δ). Its functions in DNA replication are unknown. PDIP46 associates with Pol δ in cell extracts both by immunochemical and protein separation methods, as well as by ChIP analyses. PDIP46 also interacts with PCNA via multiple copies of a novel PCNA binding motif, the APIMs (AlkB homo...

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DNA polymerase δ-interacting protein 2 is a processivity factor for DNA polymerase λ during 8-oxo-7,8-dihydroguanine bypass.

The bypass of DNA lesions by the replication fork requires a switch between the replicative DNA polymerase (Pol) and a more specialized translesion synthesis (TLS) Pol to overcome the obstacle. DNA Pol δ-interacting protein 2 (PolDIP2) has been found to physically interact with Pol η, Pol ζ, and Rev1, suggesting a possible role of PolDIP2 in the TLS reaction. However, the consequences of PolDIP...

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DNA polymerase δ and ζ switch by sharing accessory subunits of DNA polymerase δ.

Translesion DNA synthesis is an important branch of the DNA damage tolerance pathway that assures genomic integrity of living organisms. The mechanisms of DNA polymerase (Pol) switches during lesion bypass are not known. Here, we show that the C-terminal domain of the Pol ζ catalytic subunit interacts with accessory subunits of replicative DNA Pol δ. We also show that, unlike other members of t...

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DNA Polymerase δ Is Required for Early Mammalian Embryogenesis

BACKGROUND In eukaryotic cells, DNA polymerase delta (Poldelta), whose catalytic subunit p125 is encoded in the Pold1 gene, plays a central role in chromosomal DNA replication, repair, and recombination. However, the physiological role of the Poldelta in mammalian development has not been thoroughly investigated. METHODOLOGY/PRINCIPAL FINDINGS To examine this role, we used a gene targeting st...

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Ribonucleotide incorporation, proofreading and bypass by human DNA polymerase δ.

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ژورنال

عنوان ژورنال: Oncotarget

سال: 2016

ISSN: 1949-2553

DOI: 10.18632/oncotarget.7034