HTT
Gene Ontology Biological Process
- Golgi organization [IMP]
- establishment of mitotic spindle orientation [IMP]
- negative regulation of extrinsic apoptotic signaling pathway [IMP]
- organ development [IBA]
- positive regulation of inositol 1,4,5-trisphosphate-sensitive calcium-release channel activity [IDA]
- regulation of protein phosphatase type 2A activity [IMP]
- retrograde vesicle-mediated transport, Golgi to ER [IMP]
- vesicle transport along microtubule [IMP]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
PNKP
Gene Ontology Biological Process
- DNA damage response, detection of DNA damage [IDA, NAS]
- DNA repair [IGI]
- DNA-dependent DNA replication [NAS]
- dephosphorylation [IDA]
- nucleic acid phosphodiester bond hydrolysis [NAS]
- nucleotide phosphorylation [IDA]
- nucleotide-excision repair, DNA damage removal [NAS]
- polynucleotide 3' dephosphorylation [IDA]
- response to oxidative stress [IDA]
- response to radiation [NAS, TAS]
Gene Ontology Molecular Function- ATP binding [NAS]
- ATP-dependent polydeoxyribonucleotide 5'-hydroxyl-kinase activity [IDA]
- damaged DNA binding [NAS]
- double-stranded DNA binding [TAS]
- endonuclease activity [NAS]
- nucleotide kinase activity [IDA]
- polynucleotide 3'-phosphatase activity [IDA]
- protein binding [IPI]
- purine nucleotide binding [NAS]
- ATP binding [NAS]
- ATP-dependent polydeoxyribonucleotide 5'-hydroxyl-kinase activity [IDA]
- damaged DNA binding [NAS]
- double-stranded DNA binding [TAS]
- endonuclease activity [NAS]
- nucleotide kinase activity [IDA]
- polynucleotide 3'-phosphatase activity [IDA]
- protein binding [IPI]
- purine nucleotide binding [NAS]
Co-localization
Interaction inferred from two proteins that co-localize in the cell by indirect immunofluorescence only when in addition, if one gene is deleted, the other protein becomes mis-localized. Also includes co-dependent association of proteins with promoter DNA in chromatin immunoprecipitation experiments.
Publication
Mutant huntingtin impairs PNKP and ATXN3, disrupting DNA repair and transcription.
How huntingtin (HTT) triggers neurotoxicity in Huntington's disease (HD) remains unclear. We report that HTT forms a transcription-coupled DNA repair (TCR) complex with RNA polymerase II subunit A (POLR2A), ataxin-3, the DNA repair enzyme polynucleotide-kinase-3'-phosphatase (PNKP), and cyclic AMP-response element-binding (CREB) protein (CBP). This complex senses and facilitates DNA damage repair during transcriptional elongation, but its functional integrity is impaired ... [more]
Throughput
- Low Throughput
Additional Notes
- assayed using standard immunofluorescence as well as PLA (proximity ligation assay)
Related interactions
Interaction | Experimental Evidence Code | Dataset | Throughput | Score | Curated By | Notes |
---|---|---|---|---|---|---|
HTT PNKP | Affinity Capture-Western Affinity Capture-Western An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner identified by Western blot with a specific polyclonal antibody or second epitope tag. This category is also used if an interacting protein is visualized directly by dye stain or radioactivity. Note that this differs from any co-purification experiment involving affinity capture in that the co-purification experiment involves at least one extra purification step to get rid of potential contaminating proteins. | Low | - | BioGRID | - | |
PNKP HTT | Affinity Capture-Western Affinity Capture-Western An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner identified by Western blot with a specific polyclonal antibody or second epitope tag. This category is also used if an interacting protein is visualized directly by dye stain or radioactivity. Note that this differs from any co-purification experiment involving affinity capture in that the co-purification experiment involves at least one extra purification step to get rid of potential contaminating proteins. | Low | - | BioGRID | - |
Curated By
- BioGRID