2022
The Get1/2 insertase forms a channel to mediate the insertion of tail-anchored proteins into the ER
Heo P, Culver J, Miao J, Pincet F, Mariappan M. The Get1/2 insertase forms a channel to mediate the insertion of tail-anchored proteins into the ER. Cell Reports 2022, 42: 111921. PMID: 36640319, PMCID: PMC9932932, DOI: 10.1016/j.celrep.2022.111921.Peer-Reviewed Original ResearchConceptsTransmembrane domainTA proteinsSingle C-terminal transmembrane domainC-terminal transmembrane domainTail-anchored (TA) proteinsTail-anchored proteinsEndoplasmic reticulum membraneGet3Reticulum membraneChannel functionInsertaseBulk fluorescenceAqueous channelsProteinChannel activityMutation analysisMembraneMicrofluidic assayTranslocaseYeastComplexesInsertionTranslocationHydrophilic segmentsBinding
2014
CX3CL1, a chemokine finely tuned to adhesion: critical roles of the stalk glycosylation and the membrane domain
Ostuni M, Guellec J, Hermand P, Durand P, Combadière C, Pincet F, Deterre P. CX3CL1, a chemokine finely tuned to adhesion: critical roles of the stalk glycosylation and the membrane domain. Biology Open 2014, 3: 1173-1182. PMID: 25395671, PMCID: PMC4265755, DOI: 10.1242/bio.20149845.Peer-Reviewed Original ResearchCytosolic domainTransmembrane domainChemokine domainMucin stalkMembrane domainsHigh glycosylationFunctional rolePatrolling behaviorFunctional adhesion assaysAdhesion assaysCritical roleGlycosylationDomainCytoskeletonPermanent aggregationStructural analysisStalkAdhesionRoleMembraneCX3CL1CellsAssaysReceptorsA Half-Zippered SNARE Complex Represents a Functional Intermediate in Membrane Fusion
Li F, Kümmel D, Coleman J, Reinisch KM, Rothman JE, Pincet F. A Half-Zippered SNARE Complex Represents a Functional Intermediate in Membrane Fusion. Journal Of The American Chemical Society 2014, 136: 3456-3464. PMID: 24533674, PMCID: PMC3985920, DOI: 10.1021/ja410690m.Peer-Reviewed Original ResearchConceptsN-terminal domainMembrane fusionV-SNARET-SNAREsRecent biophysical studiesC-terminal portionSNARE complexTransmembrane domainRegulatory proteinsFunctional intermediatesC-terminusDistinct functionsN-terminusMolecular mechanismsConformational rearrangementsBiophysical studiesVital regulatorZippering mechanismRate-limiting stepBiological membranesSnareFusionComplexinMultiple stagesZippering
2012
SNARE Proteins: One to Fuse and Three to Keep the Nascent Fusion Pore Open
Shi L, Shen QT, Kiel A, Wang J, Wang HW, Melia TJ, Rothman JE, Pincet F. SNARE Proteins: One to Fuse and Three to Keep the Nascent Fusion Pore Open. Science 2012, 335: 1355-1359. PMID: 22422984, PMCID: PMC3736847, DOI: 10.1126/science.1214984.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCalciumDiffusionLipid BilayersLiposomesMembrane FusionMembrane ProteinsMiceNeurotransmitter AgentsProtein Structure, TertiaryProteolipidsRatsRecombinant Fusion ProteinsSNARE ProteinsSynaptic TransmissionSynaptic VesiclesSynaptosomal-Associated Protein 25Syntaxin 1Vesicle-Associated Membrane Protein 2ConceptsVesicle-associated membrane protein 2Bilayer fusionNative transmembrane domainNascent fusion poresLipid bilayer nanodiscsMembrane protein 2Synchronous neurotransmitter releaseSNARE complexTransmembrane helicesTransmembrane domainBilayer nanodiscsFused bilayersFusion porePore opensFusion partnerBiochemical studiesProtein 2Neurotransmitter releaseNanodiscsSnareEfficient releaseSynaptic transmissionSNAREpinsFusionRelevant time scales
2008
Functional Adhesiveness of the CX3CL1 Chemokine Requires Its Aggregation ROLE OF THE TRANSMEMBRANE DOMAIN*
Hermand P, Pincet F, Carvalho S, Ansanay H, Trinquet E, Daoudi M, Combadière C, Deterre P. Functional Adhesiveness of the CX3CL1 Chemokine Requires Its Aggregation ROLE OF THE TRANSMEMBRANE DOMAIN*. Journal Of Biological Chemistry 2008, 283: 30225-30234. PMID: 18725411, PMCID: PMC2662081, DOI: 10.1074/jbc.m802638200.Peer-Reviewed Original ResearchConceptsBioluminescence resonance energy transferHomogeneous time-resolved fluorescenceTransmembrane domainAdhesive potencyTransmembrane domain residuesLoss of glycosylationConstitutive oligomersDomain residuesBRET signalTruncation experimentsResonance energy transferCell surfacePrimary cellsSpecific signalsNative formAdhesion assaysAdhesive moleculesCell linesCentral roleAggregation roleInhibition of CX3CL1New pathwayTime-resolved fluorescenceCellsAssays