2021
In vitro fluorescence assay to measure GDP/GTP exchange of guanine nucleotide exchange factors of Rho family GTPases
Blaise AM, Corcoran EE, Wattenberg ES, Zhang YL, Cottrell JR, Koleske AJ. In vitro fluorescence assay to measure GDP/GTP exchange of guanine nucleotide exchange factors of Rho family GTPases. Biology Methods And Protocols 2021, 7: bpab024. PMID: 35087952, PMCID: PMC8789339, DOI: 10.1093/biomethods/bpab024.Peer-Reviewed Original ResearchNucleotide exchange factorsGEF domainExchange factorGuanine nucleotide exchange factorsGDP/GTP exchangeRho family GEFsActivation of GTPasesFluorescence-based analysisRare variantsGTP loadingGTP exchangeRho familyHigh-throughput screeningWhole-exome sequencingCellular activitiesGenetic variantsGTPasesGEFExome sequencingCritical roleUser-friendly protocolComplete understandingHuman developmentVariantsGEFs
2020
Crystal structure of a guanine nucleotide exchange factor encoded by the scrub typhus pathogen Orientia tsutsugamushi
Lim C, Berk JM, Blaise A, Bircher J, Koleske AJ, Hochstrasser M, Xiong Y. Crystal structure of a guanine nucleotide exchange factor encoded by the scrub typhus pathogen Orientia tsutsugamushi. Proceedings Of The National Academy Of Sciences Of The United States Of America 2020, 117: 30380-30390. PMID: 33184172, PMCID: PMC7720168, DOI: 10.1073/pnas.2018163117.Peer-Reviewed Original ResearchConceptsBacterial GEFStructure-guided mutational analysisExchange factor domainRho family GTPasesObvious sequence similarityRho GTPases Rac1Pathogen Orientia tsutsugamushiAlters cell morphologyInteraction screenConvergent evolutionGEF domainHost interactorsExchange factorNucleotide displacementGEF activityCellular processesSequence similarityCytoskeletal structuresGTPases Rac1Ectopic expressionMutational analysisGEFRac1Factor domainPathogenic bacterium