The Pathogenic R3052W BRCA2 Variant Disrupts Homology-Directed Repair by Failing to Localize to the Nucleus
Jimenez-Sainz J, Krysztofiak A, Garbarino J, Rogers F, Jensen RB. The Pathogenic R3052W BRCA2 Variant Disrupts Homology-Directed Repair by Failing to Localize to the Nucleus. Frontiers In Genetics 2022, 13: 884210. PMID: 35711920, PMCID: PMC9197106, DOI: 10.3389/fgene.2022.884210.Peer-Reviewed Original ResearchDominant-negative alleleDNA damage responseDNA repair functionDNA strand exchangeHomology-directed repairGenome instabilityCellular functionsDamage responseDNA bindingNegative allelesStrand exchangeRepair functionGermline missense variantsCell survivalFunction mutationsMissense variantsRAD51Pathogenic allelesSimple lossPARP inhibitorsCytoplasmProteinAllelesHomologyDNAA cell-penetrating antibody inhibits human RAD51 via direct binding
Turchick A, Hegan DC, Jensen RB, Glazer PM. A cell-penetrating antibody inhibits human RAD51 via direct binding. Nucleic Acids Research 2017, 45: 11782-11799. PMID: 29036688, PMCID: PMC5714174, DOI: 10.1093/nar/gkx871.Peer-Reviewed Original ResearchConceptsHomology-directed repairMolecular basisDirect bindingSynthetic lethal killingPre-clinical developmentBRCA2-deficient cancer cellsCell-penetrating antibodiesAnti-cancer agentsLupus autoantibodiesHuman Rad51DNA repairDNA bindingRAD51N-terminusCancer cellsSilico molecular modelingFunction mutationsCancer therapySpecific inhibitorDNANovel inhibitorsAttractive targetComplementarity-determining regionsMolecular modelingCell penetrationPromotion of BRCA2-Dependent Homologous Recombination by DSS1 via RPA Targeting and DNA Mimicry
Zhao W, Vaithiyalingam S, San Filippo J, Maranon DG, Jimenez-Sainz J, Fontenay GV, Kwon Y, Leung SG, Lu L, Jensen RB, Chazin WJ, Wiese C, Sung P. Promotion of BRCA2-Dependent Homologous Recombination by DSS1 via RPA Targeting and DNA Mimicry. Molecular Cell 2015, 59: 176-187. PMID: 26145171, PMCID: PMC4506714, DOI: 10.1016/j.molcel.2015.05.032.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SubstitutionBRCA2 ProteinBreast NeoplasmsCell LineFemaleHeLa CellsHomologous RecombinationHumansModels, BiologicalMolecular MimicryMutagenesis, Site-DirectedNuclear Magnetic Resonance, BiomolecularProteasome Endopeptidase ComplexProtein SubunitsRad51 RecombinaseRecombinant ProteinsReplication Protein AConceptsReplication protein AHomologous recombinationAffinity of RPAReplication fork repairTumor suppressor BRCA2DNA mimicryGenome maintenanceFork repairMediator complexRAD51 recombinaseAcidic domainDNA breaksBiological processesTumor suppressionDSS1Vivo analysisProtein ADNA mimicsSsDNARecombinationBRCA2ComplexesRecombinaseDNAMutationsPurified human BRCA2 stimulates RAD51-mediated recombination
Jensen RB, Carreira A, Kowalczykowski SC. Purified human BRCA2 stimulates RAD51-mediated recombination. Nature 2010, 467: 678-683. PMID: 20729832, PMCID: PMC2952063, DOI: 10.1038/nature09399.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid MotifsApoptosis Regulatory ProteinsBRCA2 ProteinCell Cycle ProteinsCell LineChromosomal InstabilityDNADNA RepairDNA, Single-StrandedDNA-Binding ProteinsHumansMutationProtein BindingRad51 RecombinaseRecombination, GeneticReplication Protein ASequence Homology, Nucleic AcidSubstrate SpecificityConceptsHuman BRCA2Assembly of RAD51Rad51-ssDNA filamentRecombinational DNA repairDNA repair processesBreast cancer susceptibility genesRepair processReplication proteinsCancer susceptibility genesSsDNA annealingBind RAD51Homologous recombinationDNA repairMolecular basisATP hydrolysisRAD51Large proteinsChromosomal instabilitySusceptibility genesMechanistic insightsKey mediatorProteinDNAMutationsBRCA2