Search Results
Overview
| Uniprot ID | Q5UIP0 |
|---|---|
| Protein Name | Telomere-associated protein RIF1 |
| Gene Name | RIF1 |
| Organism | Homo sapiens |
Kla Sites from experimental identification
| Position | Flanking peptide |
|---|---|
| 1014 | DSFLAQTKNKKENMK |
| 1016 | FLAQTKNKKENMKPA |
| 1027 | MKPAAKLKLESSSLK |
| 1036 | ESSSLKVKGEILLEE |
| 1274 | QREGTFSKSDSEKIV |
| 1279 | FSKSDSEKIVNGTKR |
| 1440 | DKENSHQKKERRKEE |
| 1441 | KENSHQKKERRKEEE |
| 1467 | DDVLPKQKLIAEQTL |
| 1575 | RSGKWKNKSNESVDI |
| 1721 | QTLECQHKRSRRVRR |
| 1913 | VTESNLEKAKTMELN |
| 1915 | ESNLEKAKTMELNVG |
| 2183 | SPSTSILKRGLKRSQ |
| 2200 | EISSPVNKVRRVSFA |
| 2238 | SNSSPIGKSVKTSPT |
| 2249 | TSPTTQSKHNTTSAK |
| 2256 | KHNTTSAKGFLSPGS |
| 791 | QRPSDWSKKKNEPLG |
Function
Key regulator of TP53BP1 that plays a key role in the repair of double-strand DNA breaks (DSBs) in response to DNA damage: acts by promoting non-homologous end joining (NHEJ)-mediated repair of DSBs (PubMed:15342490, PubMed:28241136). In response to DNA damage, interacts with ATM-phosphorylated TP53BP1 (PubMed:23333306, PubMed:28241136). Interaction with TP53BP1 leads to dissociate the interaction between NUDT16L1/TIRR and TP53BP1, thereby unmasking the tandem Tudor-like domain of TP53BP1 and allowing recruitment to DNA DSBs (PubMed:28241136). Once recruited to DSBs, RIF1 and TP53BP1 act by promoting NHEJ-mediated repair of DSBs (PubMed:23333306). In the same time, RIF1 and TP53BP1 specifically counteract the function of BRCA1 by blocking DSBs resection via homologous recombination (HR) during G1 phase (PubMed:23333306). Also required for immunoglobulin class-switch recombination (CSR) during antibody genesis, a process that involves the generation of DNA DSBs (By similarity). Promotes NHEJ of dysfunctional telomeres (By similarity)
Protein Sequence
Gene Ontology
| Classification | GO ID | Description |
|---|---|---|
| Cellular Component | GO:0000785 | chromatin |
| Cellular Component | GO:0140445 | chromosome, telomeric repeat region |
| Cellular Component | GO:0000793 | condensed chromosome |
| Cellular Component | GO:0001939 | female pronucleus |
| Cellular Component | GO:0001940 | male pronucleus |
| Cellular Component | GO:0031965 | nuclear membrane |
| Cellular Component | GO:0005654 | nucleoplasm |
| Cellular Component | GO:0005634 | nucleus |
| Cellular Component | GO:0035861 | site of double-strand break |
| Cellular Component | GO:0051233 | spindle midzone |
| Biological Process | GO:0006974 | DNA damage response |
| Biological Process | GO:0006281 | DNA repair |
| Biological Process | GO:2000042 | negative regulation of double-strand break repair via homologous recombination |
| Biological Process | GO:0045814 | negative regulation of gene expression, epigenetic |
| Biological Process | GO:0000122 | negative regulation of transcription by RNA polymerase II |
| Biological Process | GO:2001034 | positive regulation of double-strand break repair via nonhomologous end joining |
| Biological Process | GO:0045830 | positive regulation of isotype switching |
| Biological Process | GO:0031509 | subtelomeric heterochromatin formation |
| Biological Process | GO:0000723 | telomere maintenance |
| Biological Process | GO:0043247 | telomere maintenance in response to DNA damage |
Reference
[1] Yang Z, Yan C, Ma J, Peng P, Ren X et al.. Lactylome analysis suggests lactylation-dependent mechanisms of metabolic adaptation in hepatocellular carcinoma.. Nat Metab 5(1):61-79. 2023 Jan. PMID: 36593272.
[2] He C, Zhang J, Bai X, Lu C, Zhang K. Lysine lactylation-based insight to understanding the characterization of cervical cancer.. Biochim Biophys Acta Mol Basis Dis 1870(7):167356. 2024 Oct. PMID: 39025375.
[3] He J, Lai T, Zhou Z, Yang H, Lei Z et al.. Multiomics profiling reveals the involvement of protein lactylation in nonhomologous end joining pathway conferring radioresistance in lung adenocarcinoma cell.. Sci Rep 15(1):24651. 2025 Jul 9. PMID: 40634431.
[4] Wu Q, Li Z, Gong T, Zheng X, Zhou X et al.. Porphyromonas gingivalis infection induces lysine lactylation reprogramming in human umbilical vein endothelial cells.. Front Cell Infect Microbiol 16:1706727. 2026. PMID: 41696360.