2021
Distinct functions of POT1 proteins contribute to the regulation of telomerase recruitment to telomeres
Gu P, Jia S, Takasugi T, Tesmer VM, Nandakumar J, Chen Y, Chang S. Distinct functions of POT1 proteins contribute to the regulation of telomerase recruitment to telomeres. Nature Communications 2021, 12: 5514. PMID: 34535663, PMCID: PMC8448735, DOI: 10.1038/s41467-021-25799-7.Peer-Reviewed Original ResearchConceptsDNA damage responseTelomerase recruitmentPOT1 proteinsDamage responseATR-dependent DNA damage responseNon-homologous end-joining DNA repair pathwayRecruitment of telomeraseC-strand fillAmino acidsDNA repair pathwaysUnique amino acidsTEN1 (CST) complexTelomere extensionCTC1-STN1Stable heterodimerRepair pathwaysC-terminusDistinct functionsPOT1bPOT1aTelomeresC-strandG-strandTPP1Protein
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