POLD4 - DNA polymerase delta 4, accessory subunit Gene
Also Known as p12; POLDS
Species: Homo sapiens
About POLD4
This gene has 12 transcripts (splice variants) and 165 orthologues. Ubiquitous expression in lymph node (RPKM 33.7), small intestine (RPKM 29.8) and 25 other tissues.
Summary
This gene encodes the smallest 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. The encoded protein enhances the activity of DNA Polymerase delta and plays a role in fork repair and stabilization through interactions with the DNA helicase Bloom syndrome protein. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Mar 2012]
POLD4 Products (2)
| mRNA | Protein | Name |
|---|---|---|
| NM_001256870.2 | NP_001243799.1 | DNA polymerase delta subunit 4 isoform 2 |
| NM_021173.5 | NP_066996.3 | DNA polymerase delta subunit 4 isoform 1 |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
12403614 | GOA |
| Biological Process GO Annotation | Evidence | References | Source |
|---|---|---|---|
| involved in DNA-templated DNA replication |
IDA
IDA: Inferred from direct assay
|
20334433 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| part of delta DNA polymerase complex |
IPI
IPI: Inferred from physical interaction
|
12403614 | GOA |
POLD4 Protein Structure
DNA_pol_delta_4: DNA polymerase delta, subunit 4 (1 - 103)
- 0
- 100
- 107 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
DNA polymerase delta subunit 4 |
|
POLD4 Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | References |
|---|---|---|---|---|---|---|---|
|
Intra
|
POLD4 | Q9HCU8 | PCNA | Homo sapiens | P12004 | 16510448 | |
|
Intra
|
POLD4 | Q9HCU8 | POLD2 | Homo sapiens | P49005 | 16510448 | |
|
Intra
|
POLD4 | Q9HCU8 | POLD2 | Homo sapiens | P49005 | 31449058 | |
|
Intra
|
POLD4 | Q9HCU8 | POLD1 | Homo sapiens | P28340 | 16510448 | |
|
Intra
|
POLD4 | Q9HCU8 | POLD1 | Homo sapiens | P28340 | 31449058 | |
|
Intra
|
POLD4 | Q9HCU8 | POLD1 | Homo sapiens | P28340 | 16510448 |
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Felis catus | POLD4 | VGNC | VGNC:105828 |
| Rattus norvegicus | POLD4 | RGD | RGD:1308519 |
| Macaca mulatta | POLD4 | VGNC | VGNC:101382 |
| Mus musculus | POLD4 | MGD | MGI:1916995 |
| Others | POLD4 | NCBI |