2024
TRF2–RAP1 represses RAD51-dependent homology-directed telomere repair by promoting BLM-mediated D-loop unwinding and inhibiting BLM–DNA2-dependent 5′-end resection
Liang F, Rai R, Sodeinde T, Chang S. TRF2–RAP1 represses RAD51-dependent homology-directed telomere repair by promoting BLM-mediated D-loop unwinding and inhibiting BLM–DNA2-dependent 5′-end resection. Nucleic Acids Research 2024, 52: 9695-9709. PMID: 39082275, PMCID: PMC11381343, DOI: 10.1093/nar/gkae642.Peer-Reviewed Original ResearchHomology-directed repairTelomeric D-loopsD-loopChromosome fusionsD-loop formationSingle-stranded telomeric overhangsHomology searchTelomere clusteringTRFH domainPurified proteinBasic domainBlm mutantsProtect telomeresGenomic instabilityTelomeric overhangEnd resectionTRF2Molecular mechanismsTelomereTelomere lossMolecular pathwaysTelomere repairGenomeMutantsRap1
2016
TRF2-RAP1 is required to protect telomeres from engaging in homologous recombination-mediated deletions and fusions
Rai R, Chen Y, Lei M, Chang S. TRF2-RAP1 is required to protect telomeres from engaging in homologous recombination-mediated deletions and fusions. Nature Communications 2016, 7: 10881. PMID: 26941064, PMCID: PMC4785230, DOI: 10.1038/ncomms10881.Peer-Reviewed Original ResearchConceptsRepressor/activator protein 1Telomere length controlTranscriptional gene regulationRepair of telomeresTelomere end protectionNon-homologous endActivator protein-1Myb domainChromosome fusionsYeast Rap1Gene regulationHDR pathwayEnd protectionBasic domainTelomere lossTelomeresHuman cellsHR factorsProtein 1Length controlPARP1Free fusionInappropriate processingTRF2Important role
2012
CTC1 deletion results in defective telomere replication, leading to catastrophic telomere loss and stem cell exhaustion
Gu P, Min J, Wang Y, Huang C, Peng T, Chai W, Chang S. CTC1 deletion results in defective telomere replication, leading to catastrophic telomere loss and stem cell exhaustion. The EMBO Journal 2012, 31: 2309-2321. PMID: 22531781, PMCID: PMC3364752, DOI: 10.1038/emboj.2012.96.Peer-Reviewed Original ResearchConceptsMammalian CSTTelomere lossDefective telomere replicationDeletion resultsG2/M checkpointComplete bone marrow failureStem cell exhaustionTelomere deprotectionGenome stabilityTEN1 (CST) complexTelomere replicationReplication forksTelomere maintenanceLength maintenanceCTC1-STN1Efficient restartM checkpointVivo functionCTC1TelomeresAcute deletionBone marrow failureProliferative defectEfficient replicationEssential role