Experts and Doctors on saccharomyces cerevisiae proteins in Osnabrück, Lower Saxony, Germany

Summary

Locale: Osnabrück, Lower Saxony, Germany
Topic: saccharomyces cerevisiae proteins

Top Publications

  1. Arlt H, Perz A, Ungermann C. An overexpression screen in Saccharomyces cerevisiae identifies novel genes that affect endocytic protein trafficking. Traffic. 2011;12:1592-603 pubmed publisher
    ..We present evidence on the possible role of these novel proteins in trafficking to the vacuole. Our data provide novel insights into the regulation of protein trafficking. ..
  2. Meiringer C, Auffarth K, Hou H, Ungermann C. Depalmitoylation of Ykt6 prevents its entry into the multivesicular body pathway. Traffic. 2008;9:1510-21 pubmed publisher
    ..Thus, depalmitoylation and release of Ykt6 are needed for its recycling and to circumvent its entry into the endosomal multivesicular body pathway. ..
  3. Cabrera M, Ostrowicz C, Mari M, LaGrassa T, Reggiori F, Ungermann C. Vps41 phosphorylation and the Rab Ypt7 control the targeting of the HOPS complex to endosome-vacuole fusion sites. Mol Biol Cell. 2009;20:1937-48 pubmed publisher
    ..Our data suggest that Vps41 phosphorylation fine-tunes the organization of vacuole fusion sites and provide evidence for a fusion "hot spot" on the vacuole limiting membrane. ..
  4. Hou H, John Peter A, Meiringer C, Subramanian K, Ungermann C. Analysis of DHHC acyltransferases implies overlapping substrate specificity and a two-step reaction mechanism. Traffic. 2009;10:1061-73 pubmed publisher
    ..Thus, the intracellular distribution of DHHC proteins provides an acyltransferase network, which may promote dynamic membrane association of substrate proteins. ..
  5. Jendretzki A, Ciklic I, Rodicio R, Schmitz H, Heinisch J. Cyk3 acts in actomyosin ring independent cytokinesis by recruiting Inn1 to the yeast bud neck. Mol Genet Genomics. 2009;282:437-51 pubmed publisher
    ..We propose that Cyk3 is part of an actomyosin ring independent cytokinesis pathway, which acts as a rescue mechanism to recruit Inn1 to the bud neck. ..
  6. Markgraf D, Ahnert F, Arlt H, Mari M, Peplowska K, Epp N, et al. The CORVET subunit Vps8 cooperates with the Rab5 homolog Vps21 to induce clustering of late endosomal compartments. Mol Biol Cell. 2009;20:5276-89 pubmed publisher
    ..These data thus suggest that the CORVET complex is built of subunits with distinct activities and potentially, their sequential assembly could regulate tethering and successive fusion at the late endosomes. ..
  7. Heinisch J, Dupres V, Alsteens D, Dufrêne Y. Measurement of the mechanical behavior of yeast membrane sensors using single-molecule atomic force microscopy. Nat Protoc. 2010;5:670-7 pubmed publisher
    ..For experienced researchers in biological AFM, the entire protocol can be completed in approximately 3 weeks. ..
  8. Epp N, Ungermann C. The N-terminal domains of Vps3 and Vps8 are critical for localization and function of the CORVET tethering complex on endosomes. PLoS ONE. 2013;8:e67307 pubmed publisher
  9. Heinisch J, Dupres V, Wilk S, Jendretzki A, Dufrêne Y. Single-molecule atomic force microscopy reveals clustering of the yeast plasma-membrane sensor Wsc1. PLoS ONE. 2010;5:e11104 pubmed publisher
    ..cerevisiae. Our findings indicate that in yeast, like in higher eukaryotes, signalling is coupled to the localized enrichment of sensors and receptors within membrane patches. ..

More Information

Publications24

  1. Balderhaar H, Lachmann J, Yavavli E, Bröcker C, Lürick A, Ungermann C. The CORVET complex promotes tethering and fusion of Rab5/Vps21-positive membranes. Proc Natl Acad Sci U S A. 2013;110:3823-8 pubmed publisher
    ..We therefore conclude that CORVET is a tethering complex that promotes fusion of Rab5-positive membranes and thus facilitates receptor down-regulation and recycling at the late endosome. ..
  2. Peplowska K, Markgraf D, Ostrowicz C, Bange G, Ungermann C. The CORVET tethering complex interacts with the yeast Rab5 homolog Vps21 and is involved in endo-lysosomal biogenesis. Dev Cell. 2007;12:739-50 pubmed
    ..Our data suggest that modular assembled tethering complexes define organelle biogenesis in the endocytic pathway. ..
  3. Balderhaar H, Arlt H, Ostrowicz C, Br cker C, S ndermann F, Brandt R, et al. The Rab GTPase Ypt7 is linked to retromer-mediated receptor recycling and fusion at the yeast late endosome. J Cell Sci. 2010;123:4085-94 pubmed publisher
    ..Our data suggest that Ypt7 functions at the late endosome to coordinate retromer-mediated recycling with the fusion of late endosomes with vacuoles...
  4. Cabrera M, Langemeyer L, Mari M, Rethmeier R, Orban I, Perz A, et al. Phosphorylation of a membrane curvature-sensing motif switches function of the HOPS subunit Vps41 in membrane tethering. J Cell Biol. 2010;191:845-59 pubmed publisher
    ..This multifunctional tethering factor thus discriminates between trafficking routes by switching from a curvature-sensing to a coat recognition mode upon phosphorylation. ..
  5. John Peter A, Lachmann J, Rana M, Bunge M, Cabrera M, Ungermann C. The BLOC-1 complex promotes endosomal maturation by recruiting the Rab5 GTPase-activating protein Msb3. J Cell Biol. 2013;201:97-111 pubmed publisher
    ..We thus conclude that BLOC-1 controls the lifetime of active Rab5/Vps21 and thus endosomal maturation along the endocytic pathway. ..
  6. Lachmann J, Barr F, Ungermann C. The Msb3/Gyp3 GAP controls the activity of the Rab GTPases Vps21 and Ypt7 at endosomes and vacuoles. Mol Biol Cell. 2012;23:2516-26 pubmed publisher
    ..Our data indicate that GAPs such as Msb3 can act on multiple substrates in vivo at both ends of a trafficking pathway. This ensures specificity of the subsequent GEF-mediated activation of the Rab that initiates the next transport event...
  7. Cabrera M, Arlt H, Epp N, Lachmann J, Griffith J, Perz A, et al. Functional separation of endosomal fusion factors and the class C core vacuole/endosome tethering (CORVET) complex in endosome biogenesis. J Biol Chem. 2013;288:5166-75 pubmed publisher
    ..Overall, our study reveals a unique role of CORVET in the sorting of biosynthetic cargo to the vacuole/lysosome...
  8. Wilk S, Wittland J, Thywissen A, Schmitz H, Heinisch J. A block of endocytosis of the yeast cell wall integrity sensors Wsc1 and Wsc2 results in reduced fitness in vivo. Mol Genet Genomics. 2010;284:217-29 pubmed publisher
    ..These data suggest that sensor distribution is not the major determinant for its specificity. ..
  9. Cabrera M, Ungermann C. Guanine nucleotide exchange factors (GEFs) have a critical but not exclusive role in organelle localization of Rab GTPases. J Biol Chem. 2013;288:28704-12 pubmed publisher
    ..Our data agree with the emerging model that GEFs are critical for Rab localization but raise the possibility that additional factors can contribute to this process...
  10. Krämer L, Ungermann C. HOPS drives vacuole fusion by binding the vacuolar SNARE complex and the Vam7 PX domain via two distinct sites. Mol Biol Cell. 2011;22:2601-11 pubmed publisher
    ..Our data thus support a model of HOPS-controlled membrane fusion by recognizing different elements of the SNARE complex. ..
  11. Meiringer C, Rethmeier R, Auffarth K, Wilson J, Perz A, Barlowe C, et al. The Dsl1 protein tethering complex is a resident endoplasmic reticulum complex, which interacts with five soluble NSF (N-ethylmaleimide-sensitive factor) attachment protein receptors (SNAREs): implications for fusion and fusion regulation. J Biol Chem. 2011;286:25039-46 pubmed publisher
    ..Our data support a model, in which a tethering complex is stabilized at the organelle membrane by binding to SNAREs, recognizes the incoming vesicle via its coat and then promotes its SNARE-mediated fusion. ..
  12. Ostrowicz C, Bröcker C, Ahnert F, Nordmann M, Lachmann J, Peplowska K, et al. Defined subunit arrangement and rab interactions are required for functionality of the HOPS tethering complex. Traffic. 2010;11:1334-46 pubmed publisher
    ..As HOPS Vps39 is also found at endosomes, our data thus suggest that these tethering complexes follow defined but distinct assembly pathways, and may undergo transition by simple subunit interchange. ..
  13. Meissner D, Odman Naresh J, Vogelpohl I, Merzendorfer H. A novel role of the yeast CaaX protease Ste24 in chitin synthesis. Mol Biol Cell. 2010;21:2425-33 pubmed publisher
  14. Erdmann F, Jung M, Maurer P, Harsman A, Zimmermann R, Wagner R. The mammalian and yeast translocon complexes comprise a characteristic Sec61 channel. Biochem Biophys Res Commun. 2010;396:714-20 pubmed publisher
    ..We therefore propose that considerable differences between the respective eukaryote and prokaryote protein-conducting channel units and their regulation exist. ..
  15. Takeda K, Cabrera M, Rohde J, Bausch D, Jensen O, Ungermann C. The vacuolar V1/V0-ATPase is involved in the release of the HOPS subunit Vps41 from vacuoles, vacuole fragmentation and fusion. FEBS Lett. 2008;582:1558-63 pubmed publisher
    ..Our data suggest a connection between vacuole biogenesis and membrane fusion. ..