Milovanovic, Dragomir

[["dc.bibliographiccitation.firstpage","679"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Nature Structural & Molecular Biology"],["dc.bibliographiccitation.lastpage","686"],["dc.bibliographiccitation.volume","20"],["dc.contributor.author","Honigmann, Alf"],["dc.contributor.author","van den Bogaart, Geert"],["dc.contributor.author","Iraheta, Emilio"],["dc.contributor.author","Risselada, H. Jelger"],["dc.contributor.author","Milovanovic, Dragomir"],["dc.contributor.author","Mueller, Veronika"],["dc.contributor.author","Müllar, Stefan"],["dc.contributor.author","Diederichsen, Ulf"],["dc.contributor.author","Fasshauer, Dirk"],["dc.contributor.author","Grubmüller, Helmut"],["dc.contributor.author","Hell, Stefan"],["dc.contributor.author","Eggeling, Christian"],["dc.contributor.author","Kühnel, Karin"],["dc.contributor.author","Jahn, Reinhard"],["dc.date.accessioned","2017-09-07T11:47:41Z"],["dc.date.available","2017-09-07T11:47:41Z"],["dc.date.issued","2013"],["dc.description.abstract","Synaptic-vesicle exocytosis is mediated by the vesicular Ca2+ sensor synaptotagmin-1. Synaptotagmin-1 interacts with the SNARE protein syntaxin-1A and acidic phospholipids such as phosphatidylinositol 4,5-bisphosphate (PIP2). However, it is unclear how these interactions contribute to triggering membrane fusion. Using PC12 cells from Rattus norvegicus and artificial supported bilayers, we show that synaptotagmin-1 interacts with the polybasic linker region of syntaxin-1A independent of Ca2+ through PIP2. This interaction allows both Ca2+-binding sites of synaptotagmin-1 to bind to phosphatidylserine in the vesicle membrane upon Ca2+ triggering. We determined the crystal structure of the C2B domain of synaptotagmin-1 bound to phosphoserine, allowing development of a high-resolution model of synaptotagmin bridging two different membranes. Our results suggest that PIP2 clusters organized by syntaxin-1 act as molecular beacons for vesicle docking, with the subsequent Ca2+ influx bringing the vesicle membrane close enough for membrane fusion."],["dc.identifier.doi","10.1038/nsmb.2570"],["dc.identifier.gro","3142345"],["dc.identifier.isi","000319915900008"],["dc.identifier.pmid","23665582"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/7253"],["dc.language.iso","en"],["dc.notes.intern","WoS Import 2017-03-10"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.relation.issn","1545-9993"],["dc.title","Phosphatidylinositol 4,5-bisphosphate clusters act as molecular beacons for vesicle recruitment"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","7868"],["dc.bibliographiccitation.issue","15"],["dc.bibliographiccitation.journal","Journal of Biological Chemistry"],["dc.bibliographiccitation.lastpage","7876"],["dc.bibliographiccitation.volume","291"],["dc.contributor.author","Milovanovic, Dragomir"],["dc.contributor.author","Platen, Mitja"],["dc.contributor.author","Junius, Meike"],["dc.contributor.author","Diederichsen, Ulf"],["dc.contributor.author","Schaap, Iwan A. T."],["dc.contributor.author","Honigmann, Alf"],["dc.contributor.author","Jahn, Reinhard"],["dc.contributor.author","van den Bogaart, Geert"],["dc.date.accessioned","2020-12-10T18:12:56Z"],["dc.date.available","2020-12-10T18:12:56Z"],["dc.date.issued","2016"],["dc.description.abstract","Phosphatidylinositol 4,5-bisphosphate (PI(4,5)P2) is a minor component of total plasma membrane lipids, but it has a substantial role in the regulation of many cellular functions, including exo- and endocytosis. Recently, it was shown that PI(4,5)P2and syntaxin 1, a SNARE protein that catalyzes regulated exocytosis, form domains in the plasma membrane that constitute recognition sites for vesicle docking. Also, calcium was shown to promote syntaxin 1 clustering in the plasma membrane, but the molecular mechanism was unknown. Here, using a combination of superresolution stimulated emission depletion microscopy, FRET, and atomic force microscopy, we show that Ca(2+)acts as a charge bridge that specifically and reversibly connects multiple syntaxin 1/PI(4,5)P2complexes into larger mesoscale domains. This transient reorganization of the plasma membrane by physiological Ca(2+)concentrations is likely to be important for Ca(2+)-regulated secretion."],["dc.identifier.doi","10.1074/jbc.M116.716225"],["dc.identifier.eissn","1083-351X"],["dc.identifier.issn","0021-9258"],["dc.identifier.pmid","26884341"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/13366"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/74536"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.notes.status","final"],["dc.relation.eissn","1083-351X"],["dc.relation.eissn","0021-9258"],["dc.rights","Goescholar"],["dc.rights.uri","https://goedoc.uni-goettingen.de/licenses"],["dc.title","Calcium Promotes the Formation of Syntaxin 1 Mesoscale Domains through Phosphatidylinositol 4,5-Bisphosphate"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","5984"],["dc.bibliographiccitation.journal","Nature Communications"],["dc.bibliographiccitation.volume","6"],["dc.contributor.author","Milovanovic, Dragomir"],["dc.contributor.author","Honigmann, Alf"],["dc.contributor.author","Koike, Seiichi"],["dc.contributor.author","Göttfert, Fabian"],["dc.contributor.author","Pähler, Gesa"],["dc.contributor.author","Junius, Meike"],["dc.contributor.author","Müllar, Stefan"],["dc.contributor.author","Diederichsen, Ulf"],["dc.contributor.author","Janshoff, Andreas"],["dc.contributor.author","Grubmüller, Helmut"],["dc.contributor.author","Risselada, H. J."],["dc.contributor.author","Eggeling, Christian"],["dc.contributor.author","Hell, Stefan"],["dc.contributor.author","van den Bogaart, Geert"],["dc.contributor.author","Jahn, Reinhard"],["dc.date.accessioned","2017-09-07T11:44:46Z"],["dc.date.available","2017-09-07T11:44:46Z"],["dc.date.issued","2015"],["dc.description.abstract","The clustering of proteins and lipids in distinct microdomains is emerging as an important principle for the spatial patterning of biological membranes. Such domain formation can be the result of hydrophobic and ionic interactions with membrane lipids as well as of specific protein-protein interactions. Here using plasma membrane-resident SNARE proteins as model, we show that hydrophobic mismatch between the length of transmembrane domains (TMDs) and the thickness of the lipid membrane suffices to induce clustering of proteins. Even when the TMDs differ in length by only a single residue, hydrophobic mismatch can segregate structurally closely homologous membrane proteins in distinct membrane domains. Domain formation is further fine-tuned by interactions with polyanionic phosphoinositides and homo and heterotypic protein interactions. Our findings demonstrate that hydrophobic mismatch contributes to the structural organization of membranes."],["dc.identifier.doi","10.1038/ncomms6984"],["dc.identifier.fs","613597"],["dc.identifier.gro","3141986"],["dc.identifier.isi","000348812100002"],["dc.identifier.pmid","25635869"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/13586"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/3279"],["dc.language.iso","en"],["dc.notes.intern","WoS Import 2017-03-10"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.relation.issn","2041-1723"],["dc.rights.access","openAccess"],["dc.subject.mesh","Animals"],["dc.subject.mesh","Fluorescence Resonance Energy Transfer"],["dc.subject.mesh","Fluorescent Antibody Technique"],["dc.subject.mesh","Humans"],["dc.subject.mesh","Hydrophobic and Hydrophilic Interactions"],["dc.subject.mesh","Molecular Dynamics Simulation"],["dc.subject.mesh","Phosphatidylinositols"],["dc.subject.mesh","Protein Binding"],["dc.subject.mesh","Protein Structure, Tertiary"],["dc.subject.mesh","Rats"],["dc.subject.mesh","SNARE Proteins"],["dc.title","Hydrophobic mismatch sorts SNARE proteins into distinct membrane domains"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]