2015
PI4P/phosphatidylserine countertransport at ORP5- and ORP8-mediated ER–plasma membrane contacts
Chung J, Torta F, Masai K, Lucast L, Czapla H, Tanner LB, Narayanaswamy P, Wenk MR, Nakatsu F, De Camilli P. PI4P/phosphatidylserine countertransport at ORP5- and ORP8-mediated ER–plasma membrane contacts. Science 2015, 349: 428-432. PMID: 26206935, PMCID: PMC4638224, DOI: 10.1126/science.aab1370.Peer-Reviewed Original ResearchConceptsPlasma membraneEndoplasmic reticulumER integral membrane proteinsER–plasma membrane contactsMembrane lipid homeostasisIntegral membrane proteinsPleckstrin homology domainOxysterol-binding proteinPI4P phosphatase Sac1PI4P levelsCell membrane bilayerHomology domainPhosphatase Sac1Membrane proteinsORP8Function experimentsMembrane bilayerLipid homeostasisLipid transferProtein 5Membrane contactORP5PI4PPhosphatidylserineProtein
2014
Manipulation of Plasma Membrane Phosphoinositides Using Photoinduced Protein–Protein Interactions
Idevall-Hagren O, De Camilli P. Manipulation of Plasma Membrane Phosphoinositides Using Photoinduced Protein–Protein Interactions. Methods In Molecular Biology 2014, 1148: 109-128. PMID: 24718798, DOI: 10.1007/978-1-4939-0470-9_8.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsArabidopsis ProteinsCatalytic DomainCell MembraneChlorocebus aethiopsCOS CellsCryptochromesHeLa CellsHumansLightMiceMolecular Sequence DataPhosphatidylinositolsPhosphoric Monoester HydrolasesPhotochemical ProcessesProtein Interaction Domains and MotifsProtein MultimerizationRecombinant Fusion ProteinsConceptsPlasma membraneCryptochrome 2Plasma membrane phosphatidylinositolProtein-protein interactionsLight-dependent conversionLipid-binding domainLive-cell imagingCritical regulatory roleMembrane lipid metabolismPhosphoinositide speciesSpatiotemporal regulationDimerization moduleCell physiologyMembrane phosphatidylinositolRegulatory roleTypes of cellsInositol phospholipidsPhosphorylated productsDimerization methodLipid metabolismMembraneCIB1DephosphorylationPhosphatidylinositolPhosphoinositide
2001
Generation of high curvature membranes mediated by direct endophilin bilayer interactions
Farsad K, Ringstad N, Takei K, Floyd S, Rose K, De Camilli P. Generation of high curvature membranes mediated by direct endophilin bilayer interactions. Journal Of Cell Biology 2001, 155: 193-200. PMID: 11604418, PMCID: PMC2198845, DOI: 10.1083/jcb.200107075.Peer-Reviewed Original ResearchMeSH KeywordsAcyltransferasesAdaptor Proteins, Signal TransducingAmino Acid SequenceAnimalsBiological TransportCarrier ProteinsCell MembraneCell SizeDynaminsGolgi ApparatusGTP PhosphohydrolasesHumansLipid BilayersMacromolecular SubstancesMolecular Sequence DataNerve Tissue ProteinsPhylogenyProtein Structure, TertiaryRatsSequence Homology, Amino AcidSynaptic VesiclesConceptsEndophilin-1Lipid bilayersMembrane-trafficking eventsAmino acid stretchHigh-curvature membranesNH2-terminal regionCell-free systemEndophilin BEndophilin functionGTPase dynaminDynamin ringsVesicle buddingEndophilinEndocytic vesiclesGolgi complexNarrow tubulesMembrane deformationCorresponding regionProteinTransferase activityAcyl transferase activityBilayer interactionsNew insightsLipid tubulesPotential roleDifferential Expression of Endophilin 1 and 2 Dimers at Central Nervous System Synapses*
Ringstad N, Nemoto Y, De Camilli P. Differential Expression of Endophilin 1 and 2 Dimers at Central Nervous System Synapses*. Journal Of Biological Chemistry 2001, 276: 40424-40430. PMID: 11518713, DOI: 10.1074/jbc.m106338200.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAmino Acid SequenceAnimalsBrainCarrier ProteinsProtein BindingProtein IsoformsRatsSrc Homology DomainsSynapsesConceptsEndophilin-1SH3 domain-mediated interactionsDiverse cellular proteinsDomain-mediated interactionsSynaptic vesicle biogenesisNH2-terminal moietyCoiled-coil domainCentral nervous system synapsesGTPase dynaminVesicle biogenesisDifferent cellular targetsEndocytic machineryCellular proteinsSynaptojanin 1Endophilin isoformsRelated proteinsDifferential expressionCellular targetsStable dimerSynaptojaninDynaminSame complexProteinCentral synapsesFamily membersIdentification and Characterization of a Synaptojanin 2 Splice Isoform Predominantly Expressed in Nerve Terminals*
Nemoto Y, Wenk M, Watanabe M, Daniell L, Murakami T, Ringstad N, Yamada H, Takei K, De Camilli P. Identification and Characterization of a Synaptojanin 2 Splice Isoform Predominantly Expressed in Nerve Terminals*. Journal Of Biological Chemistry 2001, 276: 41133-41142. PMID: 11498538, DOI: 10.1074/jbc.m106404200.Peer-Reviewed Original ResearchAmino Acid SequenceAnimalsBase SequenceChromatography, AffinityCloning, MolecularDNA PrimersGTP PhosphohydrolasesHumansMolecular Sequence DataMutagenesis, Site-DirectedNerve EndingsNerve Tissue ProteinsPhosphoric Monoester HydrolasesProtein IsoformsRac1 GTP-Binding ProteinRatsRNA SplicingSequence Homology, Amino Acid
2000
Functional Characterization of a Mammalian Sac1 and Mutants Exhibiting Substrate-specific Defects in Phosphoinositide Phosphatase Activity*
Nemoto Y, Kearns B, Wenk M, Chen H, Mori K, Alb J, De Camilli P, Bankaitis V. Functional Characterization of a Mammalian Sac1 and Mutants Exhibiting Substrate-specific Defects in Phosphoinositide Phosphatase Activity*. Journal Of Biological Chemistry 2000, 275: 34293-34305. PMID: 10887188, DOI: 10.1074/jbc.m003923200.Peer-Reviewed Original ResearchConceptsSubstrate-specific defectsIntegral membrane proteinsPhosphoinositide phosphatase activityPhosphatase activityMembrane proteinsEndoplasmic reticulumGolgi secretory functionIntegral membrane lipidEukaryotic cell physiologyPrimary sequence homologyYeast Sac1pSAC1 geneHeterologous complementationActin functionSac1 domainSac1pBisphosphate substrateMembrane phosphoinositidesPhosphatidylinositol 3Cell physiologyFunctional characterizationGene productsSequence homologyProtein activityGolgi complexTandem Arrangement of the Clathrin and AP-2 Binding Domains in Amphiphysin 1 and Disruption of Clathrin Coat Function by Amphiphysin Fragments Comprising These Sites*
Slepnev V, Ochoa G, Butler M, De Camilli P. Tandem Arrangement of the Clathrin and AP-2 Binding Domains in Amphiphysin 1 and Disruption of Clathrin Coat Function by Amphiphysin Fragments Comprising These Sites*. Journal Of Biological Chemistry 2000, 275: 17583-17589. PMID: 10748223, DOI: 10.1074/jbc.m910430199.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Protein Complex alpha SubunitsAdaptor Proteins, Vesicular TransportAmino Acid SequenceAnimalsBinding SitesBinding, CompetitiveCHO CellsClathrinCricetinaeGlutathione TransferaseHumansMembrane ProteinsMolecular Sequence DataMonomeric Clathrin Assembly ProteinsMutagenesis, Site-DirectedNerve Tissue ProteinsPeptide FragmentsRecombinant Fusion ProteinsTransfectionConceptsAP-2Amphiphysin 1Coat proteinClathrin adaptor AP-2COOH-terminal SH3 domainAdaptor AP-2Chinese hamster ovary cellsCoat functionMultifunctional adaptorSH3 domainHamster ovary cellsTerminal domainBinding domainsClathrinDynaminMembrane lipidsAmphiphysinSynaptic vesiclesAmino acidsSynaptojaninOvary cellsDirect interactionProteinTertiary complexTandem arrangementEpsin 1 Undergoes Nucleocytosolic Shuttling and Its Eps15 Interactor Nh2-Terminal Homology (Enth) Domain, Structurally Similar to Armadillo and Heat Repeats, Interacts with the Transcription Factor Promyelocytic Leukemia Zn2+ Finger Protein (Plzf)
Hyman J, Chen H, Di Fiore P, De Camilli P, Brunger A. Epsin 1 Undergoes Nucleocytosolic Shuttling and Its Eps15 Interactor Nh2-Terminal Homology (Enth) Domain, Structurally Similar to Armadillo and Heat Repeats, Interacts with the Transcription Factor Promyelocytic Leukemia Zn2+ Finger Protein (Plzf). Journal Of Cell Biology 2000, 149: 537-546. PMID: 10791968, PMCID: PMC2174850, DOI: 10.1083/jcb.149.3.537.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Vesicular TransportAmino Acid SequenceAnimalsArmadillo Domain ProteinsBeta CateninCalcium-Binding ProteinsCarrier ProteinsCell LineCell NucleusCrystallography, X-RayCytoskeletal ProteinsCytosolDNA-Binding ProteinsDrosophila ProteinsFluorescent Antibody TechniqueInsect ProteinsModels, MolecularMolecular Sequence DataNeuropeptidesPhosphoproteinsProtein BindingRatsSequence AlignmentTrans-ActivatorsTranscription FactorsVesicular Transport ProteinsZinc FingersConceptsENTH domainFinger proteinCRM1-dependent nuclear export pathwayClathrin adaptor AP-2Nuclear export pathwayAdaptor AP-2HEAT repeatsEndocytic machineryNuclear functionsHomology domainExport pathwayLeptomycin BEpsin 1AP-2Cytosolic proteinsUnknown functionDirect interactionEpsinTerminal portionClathrinProteinArmadillosAntifungal antibioticsPathwayDomain
1999
The Epsins Define a Family of Proteins That Interact with Components of the Clathrin Coat and Contain a New Protein Module*
Rosenthal J, Chen H, Slepnev V, Pellegrini L, Salcini A, Di Fiore P, De Camilli P. The Epsins Define a Family of Proteins That Interact with Components of the Clathrin Coat and Contain a New Protein Module*. Journal Of Biological Chemistry 1999, 274: 33959-33965. PMID: 10567358, DOI: 10.1074/jbc.274.48.33959.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Protein Complex alpha SubunitsAdaptor Proteins, Signal TransducingAdaptor Proteins, Vesicular TransportAmino Acid SequenceAnimalsCalcium-Binding ProteinsCarrier ProteinsCHO CellsClathrinCoated VesiclesCricetinaeDNA, ComplementaryFluorescent Antibody TechniqueGene ExpressionHumansIntracellular Signaling Peptides and ProteinsLuciferasesMaleMembrane ProteinsMolecular Sequence DataNeuropeptidesPhosphoproteinsPhylogenyProtein BindingProtein Structure, TertiaryRatsRecombinant Fusion ProteinsSequence AlignmentSequence Analysis, DNASequence Homology, Amino AcidTissue DistributionVesicular Transport ProteinsConceptsEpsin 1Clathrin coatClathrin adaptor AP-2New protein modulesNew protein familyTerminal regionAdaptor AP-2Family of proteinsRat brain libraryNPF motifsProtein modulesProtein familyCell peripheryAP-2Membrane dynamicsSimilar proteinsBrain libraryClathrinEps15Vesicle fractionEpsinGreen fluorescentGolgi regionCell surfaceProteinEndophilin/SH3p4 Is Required for the Transition from Early to Late Stages in Clathrin-Mediated Synaptic Vesicle Endocytosis
Ringstad N, Gad H, Löw P, Di Paolo G, Brodin L, Shupliakov O, De Camilli P. Endophilin/SH3p4 Is Required for the Transition from Early to Late Stages in Clathrin-Mediated Synaptic Vesicle Endocytosis. Neuron 1999, 24: 143-154. PMID: 10677033, DOI: 10.1016/s0896-6273(00)80828-4.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAmino Acid SequenceAnimalsAntibodiesCaenorhabditis elegansCarrier ProteinsCell-Free SystemClathrinCoated Pits, Cell-MembraneDynaminsEndocytosisGTP PhosphohydrolasesLampreysMicroscopy, ElectronMolecular Sequence DataRatsSpinal CordSrc Homology DomainsSynapsesSynaptic VesiclesConceptsSynaptic vesicle endocytosisVesicle endocytosisClathrin coatClathrin-coated pitsSynaptic vesicle recyclingCell-free systemEndophilin functionGTPase dynaminFunctional partnersVesicle fissionBiochemical machineryVesicle recyclingSH3p4EndophilinDynaminEndocytosisAntibody-mediated disruptionProteinActive zoneSynaptojaninClathrinLater stagesCoatMachineryInvaginationRecruitment of an alternatively spliced form of synaptojanin 2 to mitochondria by the interaction with the PDZ domain of a mitochondrial outer membrane protein
Nemoto Y, De Camilli P. Recruitment of an alternatively spliced form of synaptojanin 2 to mitochondria by the interaction with the PDZ domain of a mitochondrial outer membrane protein. The EMBO Journal 1999, 18: 2991-3006. PMID: 10357812, PMCID: PMC1171381, DOI: 10.1093/emboj/18.11.2991.Peer-Reviewed Original ResearchMeSH KeywordsAlternative SplicingAmino Acid SequenceAnimalsBase SequenceBinding SitesCarrier ProteinsCHO CellsCloning, MolecularCricetinaeCytoplasmExonsIntracellular MembranesIsoenzymesMembrane ProteinsMitochondriaMolecular Sequence DataMutationNerve Tissue ProteinsPhosphoric Monoester HydrolasesProtein BindingRatsRecombinant Fusion ProteinsRNA, MessengerYeastsConceptsMitochondrial outer membrane proteinMitochondrial outer membraneOuter membrane proteinsPDZ domainMembrane proteinsSynaptojanin 2Outer membraneNovel mitochondrial outer membrane proteinC-terminal transmembrane regionSingle PDZ domainPerinuclear clusteringTransmembrane regionSynaptojanin 1C-terminusExon sequencesSpliced formsEnforced expressionUnique motifModulation of inositolIntracellular distributionSynaptic vesiclesMitochondriaPutative roleOmp25Protein
1998
Dynamin and its partners: a progress report
Schmid S, McNiven M, De Camilli P. Dynamin and its partners: a progress report. Current Opinion In Cell Biology 1998, 10: 504-512. PMID: 9719872, DOI: 10.1016/s0955-0674(98)80066-5.Peer-Reviewed Original ResearchEpsin is an EH-domain-binding protein implicated in clathrin-mediated endocytosis
Chen H, Fre S, Slepnev V, Capua M, Takei K, Butler M, Di Fiore P, De Camilli P. Epsin is an EH-domain-binding protein implicated in clathrin-mediated endocytosis. Nature 1998, 394: 793-797. PMID: 9723620, DOI: 10.1038/29555.Peer-Reviewed Original ResearchAdaptor Protein Complex alpha SubunitsAdaptor Proteins, Signal TransducingAdaptor Proteins, Vesicular TransportAmino Acid SequenceAnimalsBlotting, NorthernBrainCalcium-Binding ProteinsCarrier ProteinsCHO CellsClathrinCricetinaeEndocytosisMembrane ProteinsMolecular Sequence DataNeuropeptidesPhosphoproteinsProtein BindingRatsRecombinant Fusion ProteinsTransfectionVesicular Transport ProteinsExpression of Amphiphysin I, an Autoantigen of Paraneoplastic Neurological Syndromes, in Breast Cancer
Floyd S, Butler M, Cremona O, David C, Freyberg Z, Zhang X, Solimena M, Tokunaga A, Ishizu H, Tsutsui K, De Camilli P. Expression of Amphiphysin I, an Autoantigen of Paraneoplastic Neurological Syndromes, in Breast Cancer. Molecular Medicine 1998, 4: 29-39. PMID: 9513187, PMCID: PMC2230265, DOI: 10.1007/bf03401727.Peer-Reviewed Original ResearchMeSH KeywordsAlternative SplicingAmino Acid SequenceAmino Acid SubstitutionAnimalsAntibodiesAntibodies, MonoclonalAutoantigensAutoimmunityBlotting, WesternBrainBreastBreast NeoplasmsChromatography, AffinityCloning, MolecularFemaleGene ExpressionHumansIsomerismMolecular Sequence DataNerve Tissue ProteinsNervous System DiseasesPolymerase Chain ReactionProtein BiosynthesisRatsStiff-Person SyndromeTumor Cells, CulturedConceptsBreast cancer tissuesBreast cancerCancer tissuesParaneoplastic sensory neuronopathyHuman breast cancer tissuesParaneoplastic neurological syndromesAutoimmune neurological disordersStiff-man syndromeNormal mammary tissueNon-neuronal tissuesAmphiphysin IForms of cancerSensory neuronopathyNeurological syndromeI antibodiesNerve terminalsDominant autoantigenI expressionNeurological disordersMammary tissueCancerAmino acid insertCancer cellsEnhanced expressionKD isoform
1997
Synaptojanin 1: localization on coated endocytic intermediates in nerve terminals and interaction of its 170 kDa isoform with Eps15
Haffner C, Takei K, Chen H, Ringstad N, Hudson A, Butler M, Salcini A, Di Fiore P, De Camilli P. Synaptojanin 1: localization on coated endocytic intermediates in nerve terminals and interaction of its 170 kDa isoform with Eps15. FEBS Letters 1997, 419: 175-180. PMID: 9428629, DOI: 10.1016/s0014-5793(97)01451-8.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAmino Acid SequenceAnimalsCalcium-Binding ProteinsClathrinEndocytosisHumansImmunohistochemistryIntracellular Signaling Peptides and ProteinsMolecular Sequence DataNerve EndingsNerve Tissue ProteinsPhosphoproteinsPhosphoric Monoester HydrolasesRatsSequence AlignmentSynaptic TransmissionSynaptic VesiclesConceptsSynaptojanin 1Endocytic intermediatesClathrin-coated pitsCOOH-terminal regionEH domainSpecies threeEps15Multiplicity of interactionsPutative roleClathrinNerve terminalsEndocytosisIsoformsProteinPrevious dataMotifInositolIntermediatesBindingInteractionPhenylalanineLocalizationNew evidenceDomainThe SH3p4/Sh3p8/SH3p13 protein family: Binding partners for synaptojanin and dynamin via a Grb2-like Src homology 3 domain
Ringstad N, Nemoto Y, De Camilli P. The SH3p4/Sh3p8/SH3p13 protein family: Binding partners for synaptojanin and dynamin via a Grb2-like Src homology 3 domain. Proceedings Of The National Academy Of Sciences Of The United States Of America 1997, 94: 8569-8574. PMID: 9238017, PMCID: PMC23017, DOI: 10.1073/pnas.94.16.8569.Peer-Reviewed Original ResearchConceptsSrc homology 3 domainSynaptic vesicle recyclingDynamin IProtein familyVesicle recyclingSH3 domain-containing proteinsDomain-containing proteinsProline-rich domainTwo-hybrid methodPhysiological binding partnerProline-rich tailRat brain libraryFurther biochemical studiesSH3 domainSynaptojaninDynamin I.Nerve terminal proteinBinding partnerTerminal proteinAmphiphysin IRelated proteinsBrain libraryMultiple tissuesBiochemical studiesProteinAmphiphysin II (SH3P9; BIN1), a Member of the Amphiphysin/Rvs Family, Is Concentrated in the Cortical Cytomatrix of Axon Initial Segments and Nodes of Ranvier in Brain and around T Tubules in Skeletal Muscle
Butler M, David C, Ochoa G, Freyberg Z, Daniell L, Grabs D, Cremona O, De Camilli P. Amphiphysin II (SH3P9; BIN1), a Member of the Amphiphysin/Rvs Family, Is Concentrated in the Cortical Cytomatrix of Axon Initial Segments and Nodes of Ranvier in Brain and around T Tubules in Skeletal Muscle. Journal Of Cell Biology 1997, 137: 1355-1367. PMID: 9182667, PMCID: PMC2132527, DOI: 10.1083/jcb.137.6.1355.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAmino Acid SequenceAnimalsAxonsBase SequenceBrain ChemistryCarrier ProteinsCerebral CortexCloning, MolecularCOS CellsCytoplasmDNA, ComplementaryGene ExpressionHumansMiceMolecular Sequence DataMuscle ProteinsMuscle, SkeletalNerve Tissue ProteinsNuclear ProteinsRabbitsRanvier's NodesRatsSrc Homology DomainsTumor Cells, CulturedTumor Suppressor ProteinsConceptsAmphiphysin IICortical cytoplasmPresence of clathrinSkeletal muscleParaneoplastic stiff-man syndromeAxon initial segmentYeast homologueActin functionNuclear functionsActin cytoskeletonActin dynamicsMammalian cellsActin cytomatrixPleiotropic functionsDistinct domainsNeuronal proteinsSplice variantsT-tubulesAmphiphysinCytomatrixEndocytosisPutative roleNodes of RanvierCytoplasmIsoformsThe SH3 Domain of Amphiphysin Binds the Proline-rich Domain of Dynamin at a Single Site That Defines a New SH3 Binding Consensus Sequence*
Grabs D, Slepnev V, Songyang Z, David C, Lynch M, Cantley L, De Camilli P. The SH3 Domain of Amphiphysin Binds the Proline-rich Domain of Dynamin at a Single Site That Defines a New SH3 Binding Consensus Sequence*. Journal Of Biological Chemistry 1997, 272: 13419-13425. PMID: 9148966, DOI: 10.1074/jbc.272.20.13419.Peer-Reviewed Original ResearchConceptsSH3 domainDynamin ILong proline-rich regionProline-rich domainSynaptic vesicle endocytosisProline-rich regionPeptide library approachMultiple SH3Adjacent amino acidsVesicle endocytosisCombinatorial peptide library approachConsensus sequenceAmphiphysinNeuronal proteinsSingle siteAmino acidsSH3Library approachProteinHigh affinityDomainDynaminGTPaseSitesEndocytosisSynaptic Vesicle Endocytosis Impaired by Disruption of Dynamin-SH3 Domain Interactions
Shupliakov O, Löw P, Grabs D, Gad H, Chen H, David C, Takei K, De Camilli P, Brodin L. Synaptic Vesicle Endocytosis Impaired by Disruption of Dynamin-SH3 Domain Interactions. Science 1997, 276: 259-263. PMID: 9092476, DOI: 10.1126/science.276.5310.259.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsBinding SitesCell MembraneCoated Pits, Cell-MembraneDynaminsEndocytosisGTP PhosphohydrolasesHumansLampreysMicroscopy, ElectronMolecular Sequence DataNerve Tissue ProteinsProlineRecombinant Fusion ProteinsSrc Homology DomainsSynapsesSynaptic TransmissionSynaptic VesiclesConceptsSynaptic vesicle endocytosisSH3 domainVesicle endocytosisSrc homology 3 (SH3) domain-containing proteinsDomain-containing proteinsClathrin-coated pitsClathrin-mediated endocytosisSH3 binding siteAmphiphysin SH3 domainSynaptic vesicle recyclingCOOH-terminal regionDynamin bindsDynamin functionBinding partnerVesicle recyclingDomain interactionsDynamin peptidePhysiological roleEndocytosisEssential roleBinding sitesSynaptic architectureSH3DomainAmphiphysinIdentification and characterization of homologues of the Exocyst component Sec10p
Guo W, Roth D, Gatti E, De Camilli P, Novick P. Identification and characterization of homologues of the Exocyst component Sec10p. FEBS Letters 1997, 404: 135-139. PMID: 9119050, DOI: 10.1016/s0014-5793(97)00109-9.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsBrainCloning, MolecularCOS CellsExocytosisFungal ProteinsGolgi ApparatusHumansMammalsMolecular Sequence DataPolymerase Chain ReactionRecombinant ProteinsRNA, MessengerSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSequence Homology, Amino AcidTranscription, GeneticTransfectionVesicular Transport ProteinsConceptsC. elegans proteinsCharacterization of homologuesAmino acid identityBroad tissue distributionGolgi trafficMammalian counterpartsYeast SaccharomycesAcid identityGene productsCOS cellsWestern blot analysisSec10pPeripheral cytoplasmExocystBlot analysisProteinTissue distributionImmunofluorescence stainingSec8pCellsSaccharomycesCloningHomologuesExocytosisCytoplasm