| Standard Name | DPB4 1 |
|---|---|
| Systematic Name | YDR121W |
| Feature Type | ORF, Verified |
| Description | Subunit of DNA pol epsilon and of ISW2 chromatin accessibility complex; involved in both chromosomal DNA replication and inheritance of telomeric silencing; stabilizes the interaction of Pol epsilon with primer-template DNA, positively affecting the processivity of the polymerase and exonuclease activities of Pol epsilon; interacts with extranucleosomal DNA and acts as anchor point for ISW2 complex that retains its position on DNA during nucleosome mobilization (1, 2, 3, 4, 5, 6) |
| Name Description | DNA Polymerase B (II) subunit |
| Chromosomal Location | |
|---|---|
Gene Ontology Annotations All DPB4 GO evidence and references
| View Computational GO annotations for DPB4 | |
| Molecular Function | |
| Manually curated | |
| Biological Process | |
| Manually curated | |
| Cellular Component | |
| Manually curated |
Mutant phenotypes All DPB4 Phenotype evidence and references
interactions All DPB4 Interaction evidence and references
| 190 total interaction(s) for 93 unique genes/features. | |
| Physical Interactions |
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| Genetic Interactions |
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| Resources |
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Expression Summary
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| Resources |
Protein Information All DPB4 Protein evidence and references
| Localization | |
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| Phosphorylation | PhosphoGRID | PhosphoPep Database |
| Structure | |
| Homologs |
sequence information
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| Last Update | Coordinates: 2011-02-03 | Sequence: 1996-07-31 | ||||||||||||
| Subfeature details |
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Analyze Sequence
| S288C only | |
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| S288C vs. other species | |
| S288C vs. other strains |
Resources
| External Links | All Associated Seq | E.C. | Entrez Gene | Entrez RefSeq Protein | MIPS | Search all NCBI (Entrez) | UniProtKB |
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| Primary SGDID | S000002528 |
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References cited on this page View Complete Literature Guide for DPB4
| 1) | Ohya T, et al. (2000) Structure and function of the fourth subunit (Dpb4p) of DNA polymerase epsilon in Saccharomyces cerevisiae. Nucleic Acids Res 28(20):3846-52 |
| 2) | Dua R, et al. (2000) Subunit interactions within the Saccharomyces cerevisiae DNA polymerase epsilon (pol epsilon ) complex. Demonstration of a dimeric pol epsilon. J Biol Chem 275(37):28816-25 |
| 3) | Li Y, et al. (2000) Identification and cloning of two histone fold motif-containing subunits of HeLa DNA polymerase epsilon. J Biol Chem 275(30):23247-52 |
| 4) | Iida T and Araki H (2004) Noncompetitive counteractions of DNA polymerase epsilon and ISW2/yCHRAC for epigenetic inheritance of telomere position effect in Saccharomyces cerevisiae. Mol Cell Biol 24(1):217-27 |
| 5) | Dang W, et al. (2007) The Dpb4 Subunit of ISW2 Is Anchored to Extranucleosomal DNA. J Biol Chem 282(27):19418-25 |
| 6) | Aksenova A, et al. (2010) Mismatch Repair-Independent Increase in Spontaneous Mutagenesis in Yeast Lacking Non-Essential Subunits of DNA Polymerase epsilon. PLoS Genet 6(11):e1001209 |




