Arash Komeili

Summary

Affiliation: University of California
Country: USA

Publications

  1. ncbi request reprint Magnetosomes are cell membrane invaginations organized by the actin-like protein MamK
    Arash Komeili
    Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA
    Science 311:242-5. 2006
  2. ncbi request reprint Molecular mechanisms of magnetosome formation
    Arash Komeili
    Department of Plant and Microbial Biology, University of California, Berkeley, California 94720, USA
    Annu Rev Biochem 76:351-66. 2007
  3. pmc MamK, a bacterial actin, forms dynamic filaments in vivo that are regulated by the acidic proteins MamJ and LimJ
    Olga Draper
    Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA
    Mol Microbiol 82:342-54. 2011
  4. pmc Bacterial actins and their diversity
    Ertan Ozyamak
    Department of Plant and Microbial Biology, University of California, Berkeley, California 94720, United States
    Biochemistry 52:6928-39. 2013
  5. pmc The HtrA/DegP family protease MamE is a bifunctional protein with roles in magnetosome protein localization and magnetite biomineralization
    Anna Quinlan
    Department of Molecular and Cell Biology, University of California Berkeley, 111 Koshland Hall, Berkeley, CA 94720, USA
    Mol Microbiol 80:1075-87. 2011
  6. pmc The magnetosome membrane protein, MmsF, is a major regulator of magnetite biomineralization in Magnetospirillum magneticum AMB-1
    Dorothee Murat
    University of California Berkeley, Department of Plant and Microbial Biology, 111 Koshland Hall, Berkeley, CA 94720, USA
    Mol Microbiol 85:684-99. 2012
  7. pmc Comprehensive genetic dissection of the magnetosome gene island reveals the step-wise assembly of a prokaryotic organelle
    Dorothee Murat
    Department of Plant and Microbial Biology, University of California Berkeley, Berkeley, CA 94720, USA
    Proc Natl Acad Sci U S A 107:5593-8. 2010
  8. pmc Compartmentalization and organelle formation in bacteria
    Elias Cornejo
    Department of Plant and Microbial Biology, University of California, Berkeley, 111 Koshland Hall, Berkeley, CA 94720 3102, United States
    Curr Opin Cell Biol 26:132-8. 2014
  9. pmc Biogenesis and subcellular organization of the magnetosome organelles of magnetotactic bacteria
    Shannon E Greene
    Department of Plant and Microbial Biology, University of California, Berkeley, Berkeley, CA 94720, United States
    Curr Opin Cell Biol 24:490-5. 2012
  10. pmc Analysis of the CtrA pathway in Magnetospirillum reveals an ancestral role in motility in alphaproteobacteria
    Shannon E Greene
    Plant and Microbial Biology, University of California, Berkeley, Berkeley, CA, USA
    J Bacteriol 194:2973-86. 2012

Collaborators

Detail Information

Publications22

  1. ncbi request reprint Magnetosomes are cell membrane invaginations organized by the actin-like protein MamK
    Arash Komeili
    Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA
    Science 311:242-5. 2006
    ..Thus, it seems that prokaryotes can use cytoskeletal filaments to position organelles within the cell...
  2. ncbi request reprint Molecular mechanisms of magnetosome formation
    Arash Komeili
    Department of Plant and Microbial Biology, University of California, Berkeley, California 94720, USA
    Annu Rev Biochem 76:351-66. 2007
    ..This review focuses on recent advances in understanding the molecular mechanisms of magnetosome formation and magnetite biomineralization...
  3. pmc MamK, a bacterial actin, forms dynamic filaments in vivo that are regulated by the acidic proteins MamJ and LimJ
    Olga Draper
    Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA
    Mol Microbiol 82:342-54. 2011
    ..Our results suggest that MamK filaments, like eukaryotic actins, are intrinsically stable and rely on regulators for their dynamic behaviour, a feature that stands in contrast to some classes of bacterial actins characterized to date...
  4. pmc Bacterial actins and their diversity
    Ertan Ozyamak
    Department of Plant and Microbial Biology, University of California, Berkeley, California 94720, United States
    Biochemistry 52:6928-39. 2013
    ..Here we review the functional, biochemical, and structural features of the most well-studied bacterial actins. ..
  5. pmc The HtrA/DegP family protease MamE is a bifunctional protein with roles in magnetosome protein localization and magnetite biomineralization
    Anna Quinlan
    Department of Molecular and Cell Biology, University of California Berkeley, 111 Koshland Hall, Berkeley, CA 94720, USA
    Mol Microbiol 80:1075-87. 2011
    ....
  6. pmc The magnetosome membrane protein, MmsF, is a major regulator of magnetite biomineralization in Magnetospirillum magneticum AMB-1
    Dorothee Murat
    University of California Berkeley, Department of Plant and Microbial Biology, 111 Koshland Hall, Berkeley, CA 94720, USA
    Mol Microbiol 85:684-99. 2012
    ..These results define a new biomineralization protein and lay down the foundation for the design of autonomous gene cassettes for the transfer of the magnetic phenotype in other bacteria...
  7. pmc Comprehensive genetic dissection of the magnetosome gene island reveals the step-wise assembly of a prokaryotic organelle
    Dorothee Murat
    Department of Plant and Microbial Biology, University of California Berkeley, Berkeley, CA 94720, USA
    Proc Natl Acad Sci U S A 107:5593-8. 2010
    ....
  8. pmc Compartmentalization and organelle formation in bacteria
    Elias Cornejo
    Department of Plant and Microbial Biology, University of California, Berkeley, 111 Koshland Hall, Berkeley, CA 94720 3102, United States
    Curr Opin Cell Biol 26:132-8. 2014
    ..In addition, magnetosomes and carboxysomes will serve as models to examine the interplay between cytoskeletal systems and the subcellular positioning of organelles. ..
  9. pmc Biogenesis and subcellular organization of the magnetosome organelles of magnetotactic bacteria
    Shannon E Greene
    Department of Plant and Microbial Biology, University of California, Berkeley, Berkeley, CA 94720, United States
    Curr Opin Cell Biol 24:490-5. 2012
    ..Here, we highlight some of these recent advances with a particular focus on the cell biology of magnetosome formation...
  10. pmc Analysis of the CtrA pathway in Magnetospirillum reveals an ancestral role in motility in alphaproteobacteria
    Shannon E Greene
    Plant and Microbial Biology, University of California, Berkeley, Berkeley, CA, USA
    J Bacteriol 194:2973-86. 2012
    ....
  11. pmc Dynamic Remodeling of the Magnetosome Membrane Is Triggered by the Initiation of Biomineralization
    Elias Cornejo
    Department of Plant and Microbial Biology, University of California, Berkeley, California, USA
    MBio 7:e01898-15. 2016
    ..We speculate that such a biomineralization-dependent checkpoint for membrane growth establishes the appropriate conditions within the magnetosome to ensure successful nucleation and growth of magnetic particles...
  12. pmc MamO Is a Repurposed Serine Protease that Promotes Magnetite Biomineralization through Direct Transition Metal Binding in Magnetotactic Bacteria
    David M Hershey
    Department of Plant and Microbial Biology, University of California, Berkeley, California, United States of America
    PLoS Biol 14:e1002402. 2016
    ..Our results highlight the versatility of protein scaffolds in accommodating new biochemical activities and provide unprecedented insight into the earliest stages of biomineralization. ..
  13. pmc The bacterial actin MamK: in vitro assembly behavior and filament architecture
    Ertan Ozyamak
    Department of Plant and Microbial Biology, University of California, Berkeley, California 94720, USA
    J Biol Chem 288:4265-77. 2013
    ..Beyond extending our knowledge of the properties and function of MamK in magnetotactic bacteria, this study emphasizes the functional and structural diversity of bacterial actins in general...
  14. pmc Molecular mechanisms of compartmentalization and biomineralization in magnetotactic bacteria
    Arash Komeili
    Department of Plant and Microbial Biology, University of California, Berkeley, CA, USA
    FEMS Microbiol Rev 36:232-55. 2012
    ....
  15. pmc Cell biology of prokaryotic organelles
    Dorothee Murat
    Department of Plant and Microbial Biology, University of California, Berkeley, Berkeley, California 94720 3102, USA
    Cold Spring Harb Perspect Biol 2:a000422. 2010
    ..In this article we highlight some of these prokaryotic organelles and discuss the current knowledge on their ultrastructure and the molecular mechanisms of their biogenesis and maintenance...
  16. pmc Desulfovibrio magneticus RS-1 contains an iron- and phosphorus-rich organelle distinct from its bullet-shaped magnetosomes
    Meghan E Byrne
    Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA
    Proc Natl Acad Sci U S A 107:12263-8. 2010
    ..The varied cellular paths for the formation of these two minerals lead us to suggest that the iron-phosphorus granules constitute a distinct bacterial organelle...
  17. pmc Magnetic tests for magnetosome chains in Martian meteorite ALH84001
    Benjamin P Weiss
    Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA
    Proc Natl Acad Sci U S A 101:8281-4. 2004
    ..The magnetic data demonstrate that although the magnetite is unusually pure and fine-grained in a manner similar to terrestrial magnetofossils, most or all of the crystals are not arranged in chains...
  18. pmc Genetic and biochemical investigations of the role of MamP in redox control of iron biomineralization in Magnetospirillum magneticum
    Stephanie R Jones
    Department of Chemistry, University of California, Berkeley, CA 94720 1460
    Proc Natl Acad Sci U S A 112:3904-9. 2015
    ..Finally, in vitro mineralization experiments suggest that Mms mineral-templating peptides from AMB-1 can modulate the iron redox chemistry of MamP. ..
  19. pmc A genetic strategy for probing the functional diversity of magnetosome formation
    Lilah Rahn-Lee
    Department of Plant and Microbial Biology, University of California Berkeley, Berkeley, California, United States of America
    PLoS Genet 11:e1004811. 2015
    ..These findings have implications for our understanding of magnetosome formation in general and demonstrate the feasibility of applying a modern genetic approach to an organism for which classic genetic tools are not available...
  20. pmc Interplay between two bacterial actin homologs, MamK and MamK-Like, is required for the alignment of magnetosome organelles in Magnetospirillum magneticum AMB-1
    Nicole Abreu
    Department of Plant and Microbial Biology, University of California, Berkeley, Berkeley, California, USA
    J Bacteriol 196:3111-21. 2014
    ..Taken together, these experiments suggest that direct interactions between MamK and MamK-like contribute to magnetosome alignment in AMB-1. ..
  21. pmc Magnetosome vesicles are present before magnetite formation, and MamA is required for their activation
    Arash Komeili
    Division of Geological and Planetary Sciences, California Institute of Technology, Mail Stop 100 23, Pasadena, CA 91125, USA
    Proc Natl Acad Sci U S A 101:3839-44. 2004
    ..Together, these results suggest that the magnetosome precisely coordinates magnetite biomineralization and can serve as a model system for the study of organelle biogenesis in noneukaryotic cells...
  22. pmc Anisotropy of bullet-shaped magnetite nanoparticles in the magnetotactic bacteria Desulfovibrio magneticus sp. Strain RS-1
    Michalis Chariaou
    Department of Physics, University of California, Berkeley, California
    Biophys J 108:1268-74. 2015
    ..From a physical perspective, this could be a reason for the persistency of bullet-shaped magnetosomes during the evolutionary development of magnetotaxis in MTB. ..