2010
Phosphatidylinositol 4-Phosphate Controls Both Membrane Recruitment and a Regulatory Switch of the Rab GEF Sec2p
Mizuno-Yamasaki E, Medkova M, Coleman J, Novick P. Phosphatidylinositol 4-Phosphate Controls Both Membrane Recruitment and a Regulatory Switch of the Rab GEF Sec2p. Developmental Cell 2010, 18: 828-840. PMID: 20493815, PMCID: PMC2877039, DOI: 10.1016/j.devcel.2010.03.016.Peer-Reviewed Original ResearchConceptsPI4P levelsRab GTPase Sec4pMembrane recruitmentRegulatory switchExchange factorSecretory pathwayVesicle maturationSec2pSec15pSecretory vesiclesPositive feedback loopYpt32pPhosphatidylinositol 4Vesicles formSec4pVesiclesSecretory sitesFeedback loopRecruitment cascadeCascadeRecruitmentPI4PRabPhosphatidylinositolGuanine
2006
The rab Exchange Factor Sec2p Reversibly Associates with the Exocyst
Medkova M, France Y, Coleman J, Novick P. The rab Exchange Factor Sec2p Reversibly Associates with the Exocyst. Molecular Biology Of The Cell 2006, 17: 2757-2769. PMID: 16611746, PMCID: PMC1474791, DOI: 10.1091/mbc.e05-10-0917.Peer-Reviewed Original ResearchConceptsSecretory vesiclesExchange factor Sec2pTemperature-sensitive growthC-terminal halfExocyst complexExocytic sitesRab GTPaseExchange factorMutant resultsMutant correlatesRecycling pathwaySec2pExocystNucleotide exchangePlasma membraneSec4pSec15pVesiclesMislocalizationEffectorsPolarized transportAssociatesGTPaseExocytosisPathwayThe polarity-establishment component Bem1p interacts with the exocyst complex through the Sec15p subunit
France Y, Boyd C, Coleman J, Novick P. The polarity-establishment component Bem1p interacts with the exocyst complex through the Sec15p subunit. Journal Of Cell Science 2006, 119: 876-888. PMID: 16478783, DOI: 10.1242/jcs.02849.Peer-Reviewed Original ResearchConceptsBud growthSrc homology 3 domainTwo-hybrid studiesFirst Src homology 3 domainDirect physical interactionGreen fluorescent proteinExocyst complexGolgi traffickingSec15pSecretory pathwaySpatial regulationBem1pSecretory machineryMaster regulatorFluorescent proteinNew budsMachineryExocystSec4pPhysical interactionSubunitsCase of cellsProteinPathwayCrucial role