POLD4
gene geneOn this page
Also known as p12POLDS
Summary
POLD4 (DNA polymerase delta 4, accessory subunit, HGNC:14106) is a protein-coding gene on chromosome 11q13.2, encoding DNA polymerase delta subunit 4 (Q9HCU8). As a component of the tetrameric DNA polymerase delta complex (Pol-delta4), plays a role in high fidelity genome replication and repair.
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.
Source: NCBI Gene 57804 — RefSeq curated summary.
At a glance
- GWAS associations: 5
- Clinical variants (ClinVar): 1 total
- Druggable target: yes
- MANE Select transcript:
NM_021173
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:14106 |
| Approved symbol | POLD4 |
| Name | DNA polymerase delta 4, accessory subunit |
| Location | 11q13.2 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | p12, POLDS |
| Ensembl gene | ENSG00000175482 |
| Ensembl biotype | protein_coding |
| OMIM | 611525 |
| Entrez | 57804 |
Gene structure
Transcript identifiers
Ensembl transcripts: 13 — 7 protein_coding, 6 retained_intron
ENST00000312419, ENST00000524743, ENST00000528087, ENST00000529000, ENST00000529704, ENST00000530584, ENST00000531239, ENST00000532830, ENST00000533429, ENST00000534515, ENST00000539074, ENST00000542982, ENST00000944954
RefSeq mRNA: 2 — MANE Select: NM_021173
NM_001256870, NM_021173
CCDS: CCDS58149, CCDS8158
Canonical transcript exons
ENST00000312419 — 4 exons
| Exon | Start | End |
|---|---|---|
| ENSE00001213808 | 67353303 | 67353546 |
| ENSE00003655650 | 67352691 | 67352802 |
| ENSE00003672983 | 67352988 | 67353077 |
| ENSE00003841909 | 67350772 | 67352019 |
Expression profiles
Bgee: expression breadth ubiquitous, 138 present calls, max score 98.71.
FANTOM5 (CAGE): breadth ubiquitous, TPM avg 82.5918 / max 651.2332, expressed in 1826 samples.
FANTOM5 promoters (6 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 120896 | 75.7631 | 1826 |
| 120895 | 6.2272 | 1321 |
| 120897 | 0.4080 | 209 |
| 120893 | 0.1140 | 42 |
| 120899 | 0.0457 | 19 |
| 120898 | 0.0338 | 9 |
Top tissues by expression
138 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| mucosa of transverse colon | UBERON:0004991 | 98.71 | gold quality |
| right lobe of liver | UBERON:0001114 | 97.71 | gold quality |
| granulocyte | CL:0000094 | 97.70 | gold quality |
| lower esophagus mucosa | UBERON:0035834 | 97.69 | gold quality |
| duodenum | UBERON:0002114 | 97.58 | gold quality |
| vermiform appendix | UBERON:0001154 | 97.31 | gold quality |
| lymph node | UBERON:0000029 | 97.22 | gold quality |
| descending thoracic aorta | UBERON:0002345 | 97.07 | gold quality |
| blood | UBERON:0000178 | 97.06 | gold quality |
| left coronary artery | UBERON:0001626 | 97.01 | gold quality |
| small intestine Peyer’s patch | UBERON:0003454 | 97.01 | gold quality |
| right coronary artery | UBERON:0001625 | 96.90 | gold quality |
| small intestine | UBERON:0002108 | 96.87 | gold quality |
| spleen | UBERON:0002106 | 96.81 | gold quality |
| transverse colon | UBERON:0001157 | 96.76 | gold quality |
| liver | UBERON:0002107 | 96.71 | gold quality |
| thoracic aorta | UBERON:0001515 | 96.65 | gold quality |
| ascending aorta | UBERON:0001496 | 96.61 | gold quality |
| body of pancreas | UBERON:0001150 | 96.58 | gold quality |
| popliteal artery | UBERON:0002250 | 96.55 | gold quality |
| tibial artery | UBERON:0007610 | 96.55 | gold quality |
| leukocyte | CL:0000738 | 96.49 | gold quality |
| monocyte | CL:0000576 | 96.41 | gold quality |
| esophagus mucosa | UBERON:0002469 | 96.38 | gold quality |
| body of stomach | UBERON:0001161 | 96.09 | gold quality |
| right atrium auricular region | UBERON:0006631 | 95.99 | gold quality |
| adult mammalian kidney | UBERON:0000082 | 95.74 | gold quality |
| mucosa of stomach | UBERON:0001199 | 95.71 | gold quality |
| prostate gland | UBERON:0002367 | 95.68 | gold quality |
| esophagus | UBERON:0001043 | 95.55 | gold quality |
Single-cell (SCXA)
Detected in 3 experiment(s), a significant marker in 3.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-CURD-114 | yes | 57.16 |
| E-CURD-122 | yes | 18.76 |
| E-ANND-3 | no | 0.00 |
Regulation
Is transcription factor: no
miRNA regulators (miRDB)
30 targeting POLD4, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):
| miRNA | Max score | Avg score | miRNA target_count |
|---|---|---|---|
| HSA-MIR-1252-5P | 100.00 | 69.80 | 2774 |
| HSA-MIR-6798-5P | 100.00 | 65.77 | 699 |
| HSA-MIR-7110-3P | 100.00 | 73.18 | 2486 |
| HSA-MIR-4534 | 99.99 | 66.58 | 1907 |
| HSA-MIR-1-3P | 99.93 | 72.35 | 1914 |
| HSA-MIR-206 | 99.93 | 72.50 | 1893 |
| HSA-MIR-613 | 99.91 | 71.50 | 1710 |
| HSA-MIR-4731-5P | 99.89 | 67.23 | 2537 |
| HSA-MIR-765 | 99.84 | 68.24 | 2442 |
| HSA-MIR-11181-3P | 99.75 | 66.38 | 2205 |
| HSA-MIR-6716-5P | 99.56 | 68.62 | 1244 |
| HSA-MIR-4441 | 99.49 | 66.56 | 3216 |
| HSA-MIR-6727-3P | 99.49 | 65.92 | 1333 |
| HSA-MIR-504-3P | 99.30 | 67.18 | 1745 |
| HSA-MIR-133A-5P | 99.28 | 69.13 | 941 |
| HSA-MIR-544B | 99.18 | 67.41 | 1632 |
| HSA-MIR-4270 | 99.02 | 66.26 | 1987 |
| HSA-MIR-4763-5P | 98.75 | 63.89 | 854 |
| HSA-MIR-4635 | 98.74 | 67.63 | 1339 |
| HSA-MIR-3161 | 98.71 | 67.14 | 816 |
| HSA-MIR-6754-5P | 98.60 | 65.54 | 1627 |
| HSA-MIR-5589-5P | 98.34 | 64.82 | 1148 |
| HSA-MIR-340-3P | 98.11 | 68.25 | 679 |
| HSA-MIR-4483 | 98.09 | 64.12 | 1642 |
| HSA-MIR-6827-3P | 98.08 | 72.27 | 651 |
| HSA-MIR-596 | 97.48 | 63.13 | 469 |
| HSA-MIR-3169 | 96.40 | 67.58 | 698 |
| HSA-MIR-4749-3P | 96.40 | 66.24 | 798 |
| HSA-MIR-4529-3P | 96.40 | 66.46 | 582 |
| HSA-MIR-3918 | 96.13 | 64.65 | 1300 |
Literature-anchored findings (GeneRIF, showing 15)
- pol delta interacts with PCNA via at least two of its subunits, and p12 could play a role in stabilizing the overall pol delta-PCNA complex as well as pol delta itself (PMID:16510448)
- The DNA polymerase delta enzyme, as well as the isolated p12 subunit, stimulates the DNA helicase activity of Bloom’s syndrome helicase. (PMID:18682526)
- these results indicate that POLD4 is required for the in vitro pol delta activity, and that it functions in cell proliferation and maintenance of genomic stability of human cells. (PMID:19931513)
- Low POLD4 is associated with lung cancer. (PMID:20861182)
- The identification of RNF8 allows new insights into the integration of the control of p12 degradation by different DNA damage signaling pathways. (PMID:23233665)
- Data indicate that CRL4(Cdt2) regulates the degradation of the p12 subunit of Pol delta4. (PMID:23913683)
- ubiquitination of p12 through CRL4(Cdt2) and subsequent degradation form one mechanism by which a cell responds to DNA damage to inhibit fork progression. (PMID:24022480)
- Findings provide evidence for the novel concept that Pol delta3 has a role in lagging strand synthesis, and that both forms of Pol delta3 and 4 may participate in DNA replication in higher eukaryotic cells. (PMID:24035200)
- A parallel study of Pol delta4 and Pol delta3 in Okazaki fragment processing provides evidence for a role of Pol delta3 in DNA replication (PMID:24300032)
- the p12/Pol delta is a target as a nuclear substrate of mu-calpain in a calcium-triggered apoptosis and appears to be a potential marker in the study of the chemotherapy of cancer therapies. (PMID:24691096)
- Human Poldelta is a pentameric complex with a dimeric p12 subunit. RKR-mediated dimerization plays a vital role in p12 binding to PCNA and Poldelta5 architecture, and the phenomenon appears to be conserved throughout evolution. (PMID:30885984)
- The role in cellular processes (DNA replication, DNA repair, homologous recombination) and cell cycle regulation of 2 forms of human DNA polymerase delta: delta3 and delta4 was reviewed. (REVIEW) (PMID:31326365)
- Circular RNA circ_0026359 Enhances Cisplatin Resistance in Gastric Cancer via Targeting miR-1200/POLD4 Pathway. (PMID:32855967)
- Expression Profile, Molecular Association, and Clinical Significance of POLD4 in Glioblastoma. (PMID:37543966)
- POLD4 Promotes Glioma Cell Proliferation and Suppressive Immune Microenvironment: A Pan-Cancer Analysis Integrated with Experimental Validation. (PMID:37762224)
Cross-species orthologs
3 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | pold4 | ENSDARG00000079632 |
| mus_musculus | Pold4 | ENSMUSG00000024854 |
| rattus_norvegicus | Pold4 | ENSRNOG00000018765 |
Protein
Protein identifiers
DNA polymerase delta subunit 4 — Q9HCU8 (reviewed: Q9HCU8)
Alternative names: DNA polymerase delta subunit p12
All UniProt accessions (2): E9PL15, Q9HCU8
UniProt curated annotations — full annotation on UniProt →
Function. As a component of the tetrameric DNA polymerase delta complex (Pol-delta4), plays a role in high fidelity genome replication and repair. Within this complex, increases the rate of DNA synthesis and decreases fidelity by regulating POLD1 polymerase and proofreading 3’ to 5’ exonuclease activity. Pol-delta4 participates in Okazaki fragment processing, through both the short flap pathway, as well as a nick translation system. Under conditions of DNA replication stress, required for the repair of broken replication forks through break-induced replication (BIR), a mechanism that may induce segmental genomic duplications of up to 200 kb. Involved in Pol-delta4 translesion synthesis (TLS) of templates carrying O6-methylguanine or abasic sites. Its degradation in response to DNA damage is required for the inhibition of fork progression and cell survival.
Subunit / interactions. Component of the tetrameric DNA polymerase delta complex (Pol-delta4), which consists of POLD1/p125, POLD2/p50, POLD3/p66/p68 and POLD4/p12, with POLD1 bearing DNA polymerase and 3’ to 5’ proofreading exonuclease activities. Within this complex, directly interacts with POLD1 and POLD2. Directly interacts with PCNA, as do POLD1 and POLD3; this interaction stimulates Pol-delta4 polymerase activity. As POLD1 and POLD2, directly interacts with WRNIP1; this interaction stimulates DNA polymerase delta-mediated DNA synthesis, independently of the presence of PCNA. This stimulation may be due predominantly to an increase of initiation frequency and also to increased processivity. Upon genotoxic stress induced by DNA damaging agents or by replication stress, POLD4 is proteolytically degraded and Pol-delta4 is converted into a trimeric form of the complex (Pol-delta3) which has an increased proofreading activity. The DNA polymerase delta complex interacts with POLDIP2; this interaction is probably mediated through direct binding to POLD2.
Subcellular location. Nucleus.
Post-translational modifications. Ubiquitinated; undergoes ‘Lys-48’-linked ubiquitination in response to UV irradiation, leading to proteasomal degradation. This modification is partly mediated by RNF8 and by the DCX(DTL) E3 ubiquitin ligase complex (also called CRL4(CDT2)). Efficient degradation requires the presence of PCNA and is required for the inhibition of fork progression after DNA damage.
Induction. In response to DNA damage, genotoxic stress and replication stress, following UV irradiation, ionizing radiation, treatment with methyl methanesulfonate, hydroxyurea, or with aphidicolin, protein expression drops to undetectable levels, due to proteasomal degradation. This down-regulation is ATR-dependent.
Similarity. Belongs to the DNA polymerase delta subunit 4 family.
Isoforms (2)
| UniProt ID | Names | Canonical? |
|---|---|---|
| Q9HCU8-1 | 1 | yes |
| Q9HCU8-2 | 2 |
RefSeq proteins (2): NP_001243799, NP_066996* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR007218 | DNA_pol_delta_4 | Family |
Pfam: PF04081
UniProt features (32 total): mutagenesis site 17, strand 4, helix 3, sequence variant 2, chain 1, region of interest 1, short sequence motif 1, compositionally biased region 1, turn 1, splice variant 1
Structure
Experimental structures (PDB)
7 structures.
| PDB | Method | Resolution (Å) |
|---|---|---|
| 6HVO | X-RAY DIFFRACTION | 2.1 |
| 6TNY | ELECTRON MICROSCOPY | 3.08 |
| 9EKB | ELECTRON MICROSCOPY | 3.65 |
| 6TNZ | ELECTRON MICROSCOPY | 4.05 |
| 6S1M | ELECTRON MICROSCOPY | 4.27 |
| 6S1N | ELECTRON MICROSCOPY | 4.86 |
| 6S1O | ELECTRON MICROSCOPY | 8.1 |
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q9HCU8-F1 | 85.73 | 0.63 |
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Mutagenesis-validated functional residues (17):
| Position | Phenotype |
|---|---|
| 4 | no effect on ubiquitination. loss of ubiquitination, when associated with r-15, r-25, r-74 and r-89. |
| 7 | complete loss of pcna binding; when associated with 10-aa-11. |
| 8 | strongly increased stability following uv irradiation; when associated with a-9. |
| 8 | complete loss of pcna binding. |
| 9 | strongly increased stability following uv irradiation; when associated with a-8. |
| 10–11 | complete loss of pcna binding; when associated with a-7. |
| 10 | no effect on pcna binding, nor on degradation after uv irradiation; when associated with q-4. no effect on pcna binding, |
| 15 | decreased pcna binding. no effect on pcna binding, but normal degradation after uv irradiation; when associated with q-4 |
| 15 | no effect on ubiquitination. loss of ubiquitination; when associated with r-4, r-25, r-74 and r-89. |
| 16 | increased stability following uv irradiation and no trough during s phase; when associated with a-15 and a-17. |
| 17 | increased stability following uv irradiation and no trough during s phase; when associated with a-15 and a-16. |
| 25 | no effect on ubiquitination. loss of ubiquitination; when associated with r-4, r-15, r-74 and r-89. |
| 74 | no effect on ubiquitination. loss of ubiquitination; when associated with r-4, r-15, r-25 and r-89. |
| 89 | no effect on ubiquitination. loss of ubiquitination; when associated with r-4, r-15, r-25 and r-74. |
| 1–16 | complete loss of pcna binding and of degradation after uv irradiation. |
| 4 | no effect on pcna binding. |
| 4 | no effect on pcna binding, nor on degradation after uv irradiation; when associated with y-10. no effect on pcna binding |
Function
Pathways and Gene Ontology
Reactome pathways
17 pathways
| ID | Pathway |
|---|---|
| R-HSA-110314 | Recognition of DNA damage by PCNA-containing replication complex |
| R-HSA-174411 | Polymerase switching on the C-strand of the telomere |
| R-HSA-174414 | Processive synthesis on the C-strand of the telomere |
| R-HSA-174417 | Telomere C-strand (Lagging Strand) Synthesis |
| R-HSA-174437 | Removal of the Flap Intermediate from the C-strand |
| R-HSA-5358565 | Mismatch repair (MMR) directed by MSH2:MSH6 (MutSalpha) |
| R-HSA-5358606 | Mismatch repair (MMR) directed by MSH2:MSH3 (MutSbeta) |
| R-HSA-5651801 | PCNA-Dependent Long Patch Base Excision Repair |
| R-HSA-5656169 | Termination of translesion DNA synthesis |
| R-HSA-5685942 | HDR through Homologous Recombination (HRR) |
| R-HSA-5696397 | Gap-filling DNA repair synthesis and ligation in GG-NER |
| R-HSA-5696400 | Dual Incision in GG-NER |
| R-HSA-6782135 | Dual incision in TC-NER |
| R-HSA-6782210 | Gap-filling DNA repair synthesis and ligation in TC-NER |
| R-HSA-69091 | Polymerase switching |
| R-HSA-69166 | Removal of the Flap Intermediate |
| R-HSA-69183 | Processive synthesis on the lagging strand |
MSigDB gene sets: 275 (showing top):
REACTOME_DNA_REPLICATION, AP1_01, LFA1_Q6, ENK_UV_RESPONSE_KERATINOCYTE_UP, GCANCTGNY_MYOD_Q6, KAAB_HEART_ATRIUM_VS_VENTRICLE_UP, TGACCTY_ERR1_Q2, AP2_Q3, KAUFFMANN_DNA_REPAIR_GENES, GGGTGGRR_PAX4_03, chr11q13, CAGCTG_AP4_Q5, KEGG_HOMOLOGOUS_RECOMBINATION, GOCC_NUCLEAR_REPLICATION_FORK, MISSIAGLIA_REGULATED_BY_METHYLATION_UP
GO Biological Process (6): DNA synthesis involved in DNA repair (GO:0000731), positive regulation of endothelial cell proliferation (GO:0001938), DNA-templated DNA replication (GO:0006261), DNA replication (GO:0006260), DNA repair (GO:0006281), DNA damage response (GO:0006974)
GO Molecular Function (2): DNA-directed DNA polymerase activity (GO:0003887), protein binding (GO:0005515)
GO Cellular Component (3): nucleoplasm (GO:0005654), delta DNA polymerase complex (GO:0043625), nucleus (GO:0005634)
Reactome top-level categories
Rollup of top-13 pathways:
| Category | Pathways |
|---|---|
| Telomere C-strand (Lagging Strand) Synthesis | 2 |
| Mismatch Repair | 2 |
| Global Genome Nucleotide Excision Repair (GG-NER) | 2 |
| Transcription-Coupled Nucleotide Excision Repair (TC-NER) | 2 |
| Lagging Strand Synthesis | 2 |
| DNA Damage Bypass | 1 |
| Extension of Telomeres | 1 |
| Processive synthesis on the C-strand of the telomere | 1 |
| Resolution of AP sites via the multiple-nucleotide patch replacement pathway | 1 |
| Translesion synthesis by Y family DNA polymerases bypasses lesions on DNA template | 1 |
| HDR through Homologous Recombination (HRR) or Single Strand Annealing (SSA) | 1 |
| Leading Strand Synthesis | 1 |
| Processive synthesis on the lagging strand | 1 |
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| DNA biosynthetic process | 2 |
| DNA metabolic process | 2 |
| DNA repair | 1 |
| endothelial cell proliferation | 1 |
| regulation of endothelial cell proliferation | 1 |
| positive regulation of epithelial cell proliferation | 1 |
| DNA replication | 1 |
| DNA damage response | 1 |
| cellular response to stress | 1 |
| DNA polymerase activity | 1 |
| binding | 1 |
| nuclear lumen | 1 |
| cellular anatomical structure | 1 |
| DNA polymerase complex | 1 |
| nuclear replisome | 1 |
| nuclear protein-containing complex | 1 |
| intracellular membrane-bounded organelle | 1 |
Protein interactions and networks
STRING
305 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| POLD4 | POLD3 | Q15054 | 989 |
| POLD4 | POLD1 | P28340 | 980 |
| POLD4 | POLD2 | P49005 | 927 |
| POLD4 | LIG1 | P18858 | 671 |
| POLD4 | ANXA6 | P08133 | 431 |
| POLD4 | SUMO2 | P55855 | 427 |
| POLD4 | ATM | Q13315 | 350 |
| POLD4 | CFAP300 | Q9BRQ4 | 328 |
| POLD4 | NHSL1 | Q5SYE7 | 303 |
| POLD4 | DTL | Q9NZJ0 | 303 |
| POLD4 | FEN1 | P39748 | 300 |
| POLD4 | MAD2L2 | Q9UI95 | 288 |
| POLD4 | GINS3 | Q9BRX5 | 286 |
| POLD4 | REV3L | O60673 | 258 |
| POLD4 | GINS4 | Q9BRT9 | 253 |
IntAct
31 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| POLD1 | POLD2 | psi-mi:“MI:0914”(association) | 0.910 |
| POLD1 | POLD2 | psi-mi:“MI:0915”(physical association) | 0.910 |
| POLD4 | POLD1 | psi-mi:“MI:0915”(physical association) | 0.900 |
| POLD4 | POLD1 | psi-mi:“MI:0407”(direct interaction) | 0.900 |
| POLD1 | POLD4 | psi-mi:“MI:0407”(direct interaction) | 0.900 |
| POLD4 | POLD1 | psi-mi:“MI:0914”(association) | 0.900 |
| POLD1 | POLD4 | psi-mi:“MI:0915”(physical association) | 0.900 |
| POLD2 | POLD4 | psi-mi:“MI:0915”(physical association) | 0.790 |
| POLD4 | POLD2 | psi-mi:“MI:0407”(direct interaction) | 0.790 |
| POLD2 | POLD4 | psi-mi:“MI:0407”(direct interaction) | 0.790 |
| POLD2 | REV3L | psi-mi:“MI:0914”(association) | 0.530 |
| PCNA | POLD4 | psi-mi:“MI:0915”(physical association) | 0.520 |
| POLD4 | PCNA | psi-mi:“MI:0915”(physical association) | 0.520 |
| WRNIP1 | POLD1 | psi-mi:“MI:0914”(association) | 0.500 |
| POLD4 | WRNIP1 | psi-mi:“MI:0915”(physical association) | 0.500 |
| POLD4 | POLD1 | psi-mi:“MI:0915”(physical association) | 0.400 |
| POLD2 | P4HA2 | psi-mi:“MI:0914”(association) | 0.350 |
| POLD1 | BAG2 | psi-mi:“MI:0914”(association) | 0.350 |
| POLD3 | ESYT2 | psi-mi:“MI:0914”(association) | 0.350 |
| POLD4 | psi-mi:“MI:0915”(physical association) | 0.000 |
BioGRID (18): POLD4 (Affinity Capture-MS), POLD4 (Biochemical Activity), POLD4 (Biochemical Activity), PCNA (Reconstituted Complex), POLD4 (Affinity Capture-MS), POLD4 (Affinity Capture-MS), POLD4 (Affinity Capture-MS), POLD4 (Affinity Capture-MS), POLD4 (Co-fractionation), POLE (Reconstituted Complex), PCNA (Reconstituted Complex), PCNA (Far Western), POLD1 (Reconstituted Complex), POLD3 (Reconstituted Complex), POLD2 (Reconstituted Complex)
ESM2 similar proteins: A0A1B0GVZ6, A0A1W2PR82, A0A286YDK6, A2A9F4, A2VE02, A5D7I0, A6H7B4, A6NE82, A6NEV1, A6NJB7, A6NJI1, A6NJJ6, A6QP24, A6QPM6, A8MZG2, D3ZAQ5, D4AAA5, O94850, O95873, P0C7X2, P50617, P70339, Q0P5M0, Q2KIL8, Q2KIS6, Q3UN58, Q3ZCQ2, Q5JPB2, Q5M844, Q5VZ46, Q6AY88, Q6GQX2, Q6NZ36, Q6ZW13, Q76NI1, Q7TNS8, Q80TS7, Q86YN6, Q8C1M2, Q8K2F3
Diamond homologs: O59835, Q3T0X9, Q9CWP8, Q9HCU8
SIGNOR signaling
1 interactions.
| A | Effect | B | Mechanism |
|---|---|---|---|
| POLD4 | “form complex” | “DNA polymerase delta” | binding |
Disease & clinical
Clinical variants and AI predictions
ClinVar
1 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 0 |
| Likely pathogenic | 0 |
| Uncertain significance | 0 |
| Likely benign | 0 |
| Benign | 0 |
Top pathogenic / likely-pathogenic (0)
SpliceAI
847 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 11:67352890:T:A | donor_gain | 1.0000 |
| 11:67353306:G:C | donor_gain | 1.0000 |
| 11:67353348:C:A | donor_gain | 1.0000 |
| 11:67352016:GAGA:G | acceptor_gain | 0.9900 |
| 11:67352020:C:CC | acceptor_gain | 0.9900 |
| 11:67352053:C:CT | acceptor_gain | 0.9900 |
| 11:67352053:C:T | acceptor_gain | 0.9900 |
| 11:67352833:T:C | acceptor_gain | 0.9900 |
| 11:67353073:CTCCC:C | acceptor_gain | 0.9900 |
| 11:67353075:CCC:C | acceptor_gain | 0.9900 |
| 11:67353076:CC:C | acceptor_gain | 0.9900 |
| 11:67353076:CCC:C | acceptor_gain | 0.9900 |
| 11:67353077:CC:C | acceptor_gain | 0.9900 |
| 11:67353078:C:CA | acceptor_loss | 0.9900 |
| 11:67353078:C:CC | acceptor_gain | 0.9900 |
| 11:67353079:TGCAA:T | acceptor_loss | 0.9900 |
| 11:67353321:C:CA | donor_gain | 0.9900 |
| 11:67353322:C:A | donor_gain | 0.9900 |
| 11:67353347:T:TA | donor_gain | 0.9900 |
| 11:67353351:T:TA | donor_gain | 0.9900 |
| 11:67352015:AGAGA:A | acceptor_gain | 0.9800 |
| 11:67352018:GA:G | acceptor_gain | 0.9800 |
| 11:67352019:ACTGT:A | acceptor_loss | 0.9800 |
| 11:67352020:C:A | acceptor_loss | 0.9800 |
| 11:67352020:C:G | acceptor_loss | 0.9800 |
| 11:67352021:T:A | acceptor_loss | 0.9800 |
| 11:67352022:G:C | acceptor_gain | 0.9800 |
| 11:67352054:A:T | acceptor_gain | 0.9800 |
| 11:67352986:A:AC | donor_gain | 0.9800 |
| 11:67352987:C:CC | donor_gain | 0.9800 |
AlphaMissense
683 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| 11:67353019:A:C | F52L | 0.993 |
| 11:67353019:A:T | F52L | 0.993 |
| 11:67353021:A:G | F52L | 0.993 |
| 11:67352785:G:T | R69S | 0.985 |
| 11:67352999:C:T | G59E | 0.984 |
| 11:67353017:T:A | D53V | 0.984 |
| 11:67353020:A:C | F52C | 0.984 |
| 11:67353020:A:G | F52S | 0.984 |
| 11:67352015:A:G | W102R | 0.976 |
| 11:67352015:A:T | W102R | 0.976 |
| 11:67353016:G:C | D53E | 0.973 |
| 11:67353016:G:T | D53E | 0.973 |
| 11:67353017:T:G | D53A | 0.973 |
| 11:67352772:G:T | A73D | 0.971 |
| 11:67353018:C:G | D53H | 0.971 |
| 11:67353000:C:G | G59R | 0.967 |
| 11:67353000:C:T | G59R | 0.967 |
| 11:67353017:T:C | D53G | 0.967 |
| 11:67352782:A:G | W70R | 0.966 |
| 11:67352782:A:T | W70R | 0.966 |
| 11:67353000:C:A | G59W | 0.965 |
| 11:67352775:C:G | R72P | 0.964 |
| 11:67353018:C:T | D53N | 0.963 |
| 11:67353014:A:G | L54P | 0.960 |
| 11:67352013:C:A | W102C | 0.957 |
| 11:67352013:C:G | W102C | 0.957 |
| 11:67352999:C:A | G59V | 0.957 |
| 11:67352992:G:C | C61W | 0.956 |
| 11:67352751:G:T | P80H | 0.955 |
| 11:67352794:G:C | R66G | 0.953 |
dbSNP variants (sampled 300 via entrez): RS1001090983 (11:67353217 C>A,T), RS1001544985 (11:67353022 C>CT), RS1002167751 (11:67353693 G>T), RS1002259222 (11:67353108 T>C), RS1002357075 (11:67353737 G>A,C), RS1002637046 (11:67354910 C>T), RS1002711495 (11:67353556 G>A), RS1004276294 (11:67353735 G>A,C,T), RS1005104891 (11:67355294 A>C,G), RS1005707865 (11:67350731 C>T), RS1005952332 (11:67355219 G>A), RS1005985938 (11:67351949 G>A), RS1006878484 (11:67351075 C>G), RS1007237030 (11:67350826 T>C), RS1007618030 (11:67352605 A>C,G)
Disease associations
OMIM: gene MIM:611525 | disease phenotypes:
GenCC curated gene-disease
Mondo (0):
Orphanet (0):
HPO phenotypes
0 total (0 of 0 shown, HPO-id order):
GWAS associations
5 associations (top):
| Study | Trait | p-value |
|---|---|---|
| GCST007293_14 | Body fat distribution (arm fat ratio) | 9.000000e-08 |
| GCST007294_129 | Body fat distribution (trunk fat ratio) | 8.000000e-28 |
| GCST007294_95 | Body fat distribution (trunk fat ratio) | 1.000000e-35 |
| GCST007295_43 | Body fat distribution (leg fat ratio) | 1.000000e-25 |
| GCST007295_76 | Body fat distribution (leg fat ratio) | 1.000000e-21 |
EFO canonical traits (1, from GWAS)
| EFO ID | Trait name |
|---|---|
| EFO:0004341 | body fat distribution |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: yes
ChEMBL targets (2): CHEMBL2363042 (PROTEIN FAMILY), CHEMBL4742319 (PROTEIN-PROTEIN INTERACTION)
PharmGKB: 1 entry (VIP=true, CPIC=false)
CTD chemical–gene interactions
50 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| Benzo(a)pyrene | affects expression, increases expression | 4 |
| Tretinoin | increases expression | 3 |
| Cyclosporine | decreases expression, decreases methylation, increases expression | 3 |
| Estradiol | decreases expression | 2 |
| Tetrachlorodibenzodioxin | increases expression | 2 |
| Aflatoxin B1 | increases expression | 2 |
| Cadmium Chloride | decreases expression, increases abundance, increases expression | 2 |
| afuresertib | increases expression | 1 |
| dicrotophos | decreases expression | 1 |
| triphenyl phosphate | affects expression | 1 |
| pirinixic acid | affects binding, decreases expression, increases activity | 1 |
| bisphenol A | decreases expression | 1 |
| beta-lapachone | increases expression | 1 |
| arsenite | affects binding, increases reaction | 1 |
| cobaltous chloride | decreases expression | 1 |
| tamibarotene | increases expression | 1 |
| di-n-butylphosphoric acid | affects expression | 1 |
| CPG-oligonucleotide | decreases expression | 1 |
| K 7174 | increases expression | 1 |
| trans-10,cis-12-conjugated linoleic acid | increases expression | 1 |
| abrine | increases expression | 1 |
| Temozolomide | decreases expression | 1 |
| Arsenic Trioxide | increases expression | 1 |
| Acetaldehyde | decreases expression | 1 |
| Air Pollutants | increases abundance, affects expression | 1 |
| Arsenic | increases methylation | 1 |
| Azathioprine | increases expression | 1 |
| Cadmium | increases expression, increases abundance | 1 |
| Chlorpromazine | increases expression | 1 |
| Diazinon | increases methylation | 1 |
ChEMBL screening assays
1 unique, capped per target: 1 binding
Representative assays (with source publication via chembl_document):
| Assay ID | Type | Description | Source paper |
|---|---|---|---|
| CHEMBL4713781 | Binding | Protac activity at CRBN/POLD4 in human BxPC-3 cells assessed as POLD4 degradation incubated for 16 hrs by proteomic analysis | Discovery of a Napabucasin PROTAC as an Effective Degrader of the E3 Ligase ZFP91. — J Med Chem |
Clinical trials (associated diseases)
0 trials via MONDO — disease-level, not drug-specific.
Related Atlas pages
No linked Atlas pages yet — the cross-entity mesh grows as the corpus expands.