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  • Protein Binding  (8)
  • Protein Conformation  (8)
  • American Association for the Advancement of Science (AAAS)  (11)
  • Nature Publishing Group (NPG)  (3)
  • American Geophysical Union (AGU)
  • Springer
  • 2005-2009  (14)
  • 1935-1939
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Keywords
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  • American Association for the Advancement of Science (AAAS)  (11)
  • Nature Publishing Group (NPG)  (3)
  • American Geophysical Union (AGU)
  • Springer
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Year
  • 1
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    The chromatin remodeller ACF acts as a dimeric motor to space nucleosomes (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-12-25
    Description: Evenly spaced nucleosomes directly correlate with condensed chromatin and gene silencing. The ATP-dependent chromatin assembly factor (ACF) forms such structures in vitro and is required for silencing in vivo. ACF generates and maintains nucleosome spacing by constantly moving a nucleosome towards the longer flanking DNA faster than the shorter flanking DNA. How the enzyme rapidly moves back and forth between both sides of a nucleosome to accomplish bidirectional movement is unknown. Here we show that nucleosome movement depends cooperatively on two ACF molecules, indicating that ACF functions as a dimer of ATPases. Further, the nucleotide state determines whether the dimer closely engages one or both sides of the nucleosome. Three-dimensional reconstruction by single-particle electron microscopy of the ATPase-nucleosome complex in an activated ATP state reveals a dimer architecture in which the two ATPases face each other. Our results indicate a model in which the two ATPases work in a coordinated manner, taking turns to engage either side of a nucleosome, thereby allowing processive bidirectional movement. This novel dimeric motor mechanism differs from that of dimeric motors such as kinesin and dimeric helicases that processively translocate unidirectionally and reflects the unique challenges faced by motors that move nucleosomes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2869534/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2869534/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Racki, Lisa R -- Yang, Janet G -- Naber, Nariman -- Partensky, Peretz D -- Acevedo, Ashley -- Purcell, Thomas J -- Cooke, Roger -- Cheng, Yifan -- Narlikar, Geeta J -- R01 GM073767/GM/NIGMS NIH HHS/ -- R01 GM073767-01/GM/NIGMS NIH HHS/ -- R01 GM073767-02/GM/NIGMS NIH HHS/ -- R01 GM073767-03/GM/NIGMS NIH HHS/ -- R01 GM073767-03S1/GM/NIGMS NIH HHS/ -- R01 GM073767-04/GM/NIGMS NIH HHS/ -- R01 GM073767-05/GM/NIGMS NIH HHS/ -- England -- Nature. 2009 Dec 24;462(7276):1016-21. doi: 10.1038/nature08621.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics, University of California, San Francisco, California 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20033039" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphatases/metabolism ; Adenosine Triphosphate/metabolism ; Animals ; Cell Line ; Chromatin Assembly and Disassembly/*physiology ; Dimerization ; Gene Silencing/physiology ; Histones/metabolism ; Humans ; Microscopy, Electron, Transmission ; *Models, Molecular ; Multiprotein Complexes/*metabolism ; Nucleosomes/chemistry/*metabolism ; Protein Binding ; Protein Structure, Tertiary ; Transcription Factors/chemistry/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 2
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    Structure of the vesicular stomatitis virus nucleoprotein-RNA complex (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-06-17
    Description: Vesicular stomatitis virus is a negative-stranded RNA virus. Its nucleoprotein (N) binds the viral genomic RNA and is involved in multiple functions including transcription, replication, and assembly. We have determined a 2.9 angstrom structure of a complex containing 10 molecules of the N protein and 90 bases of RNA. The RNA is tightly sequestered in a cavity at the interface between two lobes of the N protein. This serves to protect the RNA in the absence of polynucleotide synthesis. For the RNA to be accessed, some conformational change in the N protein should be necessary.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Green, Todd J -- Zhang, Xin -- Wertz, Gail W -- Luo, Ming -- AI050066/AI/NIAID NIH HHS/ -- R37 AI012464/AI/NIAID NIH HHS/ -- R37 AI012464-28/AI/NIAID NIH HHS/ -- R37 AI012464-29/AI/NIAID NIH HHS/ -- R37 AI012464-30/AI/NIAID NIH HHS/ -- R37 AI012464-31/AI/NIAID NIH HHS/ -- R37AI012464/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2006 Jul 21;313(5785):357-60. Epub 2006 Jun 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, School of Medicine, University of Alabama at Birmingham, 1025 18th Street South, Birmingham, AL 35294, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16778022" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Crystallography, X-Ray ; Hydrophobic and Hydrophilic Interactions ; Models, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; Nucleocapsid Proteins/*chemistry/metabolism ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; RNA, Viral/*chemistry/metabolism ; Ribonucleoproteins/*chemistry ; Sequence Alignment ; Vesicular stomatitis Indiana virus/*chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Structure and function of an essential component of the outer membrane protein assembly machine (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-08-19
    Description: Integral beta-barrel proteins are found in the outer membranes of mitochondria, chloroplasts, and Gram-negative bacteria. The machine that assembles these proteins contains an integral membrane protein, called YaeT in Escherichia coli, which has one or more polypeptide transport-associated (POTRA) domains. The crystal structure of a periplasmic fragment of YaeT reveals the POTRA domain fold and suggests a model for how POTRA domains can bind different peptide sequences, as required for a machine that handles numerous beta-barrel protein precursors. Analysis of POTRA domain deletions shows which are essential and provides a view of the spatial organization of this assembly machine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Seokhee -- Malinverni, Juliana C -- Sliz, Piotr -- Silhavy, Thomas J -- Harrison, Stephen C -- Kahne, Daniel -- GM34821/GM/NIGMS NIH HHS/ -- GM66174/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2007 Aug 17;317(5840):961-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17702946" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacterial Outer Membrane Proteins/*chemistry/genetics/*metabolism ; Cell Membrane/metabolism ; Crystallography, X-Ray ; Dimerization ; Escherichia coli/*chemistry/*metabolism ; Escherichia coli Proteins/*chemistry/genetics/*metabolism ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Lipoproteins/chemistry/metabolism ; Models, Biological ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Protein Binding ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protein Transport
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Architecture of a charge-transfer state regulating light harvesting in a plant antenna protein (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-05-10
    Description: Energy-dependent quenching of excess absorbed light energy (qE) is a vital mechanism for regulating photosynthetic light harvesting in higher plants. All of the physiological characteristics of qE have been positively correlated with charge transfer between coupled chlorophyll and zeaxanthin molecules in the light-harvesting antenna of photosystem II (PSII). We found evidence for charge-transfer quenching in all three of the individual minor antenna complexes of PSII (CP29, CP26, and CP24), and we conclude that charge-transfer quenching in CP29 involves a delocalized state of an excitonically coupled chlorophyll dimer. We propose that reversible conformational changes in CP29 can "tune" the electronic coupling between the chlorophylls in this dimer, thereby modulating the energy of the chlorophyll-zeaxanthin charge-transfer state and switching on and off the charge-transfer quenching during qE.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ahn, Tae Kyu -- Avenson, Thomas J -- Ballottari, Matteo -- Cheng, Yuan-Chung -- Niyogi, Krishna K -- Bassi, Roberto -- Fleming, Graham R -- New York, N.Y. -- Science. 2008 May 9;320(5877):794-7. doi: 10.1126/science.1154800.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18467588" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis Proteins/chemistry/genetics/*physiology ; Chlorophyll/physiology ; Chlorophyll Binding Proteins ; Chloroplast Proteins ; Electron Transport ; Electrophysiology ; Light ; Light-Harvesting Protein Complexes/chemistry/genetics/*physiology ; Lutein/metabolism ; Models, Molecular ; Photosystem II Protein Complex/chemistry/genetics/*physiology ; Protein Conformation ; Recombinant Proteins/metabolism ; Ribonucleoproteins ; Structure-Activity Relationship ; Xanthophylls/metabolism ; Zeaxanthins
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Alternative zippering as an on-off switch for SNARE-mediated fusion (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-01-24
    Description: Membrane fusion between vesicles and target membranes involves the zippering of a four-helix bundle generated by constituent helices derived from target- and vesicle-soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNAREs). In neurons, the protein complexin clamps otherwise spontaneous fusion by SNARE proteins, allowing neurotransmitters and other mediators to be secreted when and where they are needed as this clamp is released. The membrane-proximal accessory helix of complexin is necessary for clamping, but its mechanism of action is unknown. Here, we present experiments using a reconstituted fusion system that suggest a simple model in which the complexin accessory helix forms an alternative four-helix bundle with the target-SNARE near the membrane, preventing the vesicle-SNARE from completing its zippering.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3736854/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3736854/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Giraudo, Claudio G -- Garcia-Diaz, Alejandro -- Eng, William S -- Chen, Yuhang -- Hendrickson, Wayne A -- Melia, Thomas J -- Rothman, James E -- R01 GM071458/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Jan 23;323(5913):512-6. doi: 10.1126/science.1166500.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and Cellular Biophysics, Columbia University, College of Physicians and Surgeons, 1150 Saint Nicholas Avenue, Russ Berrie Building, Room 520, New York, NY 10032, USA. claudio.giraudo@yale.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19164750" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Vesicular Transport ; Amino Acid Motifs ; Amino Acid Sequence ; HeLa Cells ; Humans ; Hydrophobic and Hydrophilic Interactions ; *Membrane Fusion ; Models, Molecular ; Molecular Sequence Data ; Mutant Proteins/chemistry/metabolism ; Mutation ; Nerve Tissue Proteins/*chemistry/genetics/*metabolism ; Protein Binding ; Protein Structure, Secondary ; Recombinant Fusion Proteins/chemistry/metabolism ; SNARE Proteins/*chemistry/*metabolism ; Vesicle-Associated Membrane Protein 2/*chemistry/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    A systems approach to mapping DNA damage response pathways (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-05-20
    Description: Failure of cells to respond to DNA damage is a primary event associated with mutagenesis and environmental toxicity. To map the transcriptional network controlling the damage response, we measured genomewide binding locations for 30 damage-related transcription factors (TFs) after exposure of yeast to methyl-methanesulfonate (MMS). The resulting 5272 TF-target interactions revealed extensive changes in the pattern of promoter binding and identified damage-specific binding motifs. As systematic functional validation, we identified interactions for which the target changed expression in wild-type cells in response to MMS but was nonresponsive in cells lacking the TF. Validated interactions were assembled into causal pathway models that provide global hypotheses of how signaling, transcription, and phenotype are integrated after damage.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2811083/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2811083/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Workman, Christopher T -- Mak, H Craig -- McCuine, Scott -- Tagne, Jean-Bosco -- Agarwal, Maya -- Ozier, Owen -- Begley, Thomas J -- Samson, Leona D -- Ideker, Trey -- R01 ES014811/ES/NIEHS NIH HHS/ -- R01 ES014811-01A1/ES/NIEHS NIH HHS/ -- R01 GM070743/GM/NIGMS NIH HHS/ -- R01 GM070743-01/GM/NIGMS NIH HHS/ -- R01 GM070743-02/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2006 May 19;312(5776):1054-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of California San Diego, La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16709784" target="_blank"〉PubMed〈/a〉
    Keywords: *DNA Damage ; DNA Repair/genetics/physiology ; DNA, Fungal ; Fungal Proteins/metabolism ; Gene Expression Regulation, Fungal ; Methyl Methanesulfonate ; Promoter Regions, Genetic ; Protein Binding ; Saccharomyces ; Signal Transduction ; Systems Theory ; Transcription Factors/*metabolism ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Concurrent fast and slow cycling of a transcriptional activator at an endogenous promoter (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-01-26
    Description: For gene regulation, some transcriptional activators bind periodically to promoters with either a fast (approximately 1 minute) or a slow (approximately 15 to 90 minutes) cycle. It is uncertain whether the fast cycle occurs on natural promoters, and the function of either cycle in transcription remains unclear. We report that fast and slow cycling can occur simultaneously on an endogenous yeast promoter and that slow cycling in this system reflects an oscillation in the fraction of accessible promoters rather than the recruitment and release of stably bound transcriptional activators. This observation, combined with single-cell measurements of messenger RNA (mRNA) production, argues that fast cycling initiates transcription and that slow cycling regulates the quantity of mRNA produced. These findings counter the prevailing view that slow cycling initiates transcription.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Karpova, Tatiana S -- Kim, Min J -- Spriet, Corentin -- Nalley, Kip -- Stasevich, Timothy J -- Kherrouche, Zoulika -- Heliot, Laurent -- McNally, James G -- New York, N.Y. -- Science. 2008 Jan 25;319(5862):466-9. doi: 10.1126/science.1150559.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Cancer Research Core Imaging Facility, Laboratory of Receptor Biology and Gene Expression, National Cancer Institute, National Institutes of Health, 41 Library Drive, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18218898" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Carrier Proteins/*genetics ; Chromatin Immunoprecipitation ; Chromosomal Proteins, Non-Histone/metabolism ; Copper/metabolism ; DNA-Binding Proteins/genetics/*metabolism ; Fluorescence Recovery After Photobleaching ; Metallothionein ; *Promoter Regions, Genetic ; Protein Binding ; RNA, Fungal/biosynthesis ; RNA, Messenger/biosynthesis ; Recombinant Fusion Proteins ; Saccharomyces cerevisiae/*genetics/metabolism ; Saccharomyces cerevisiae Proteins/genetics/*metabolism ; Time Factors ; Transcription Factors/genetics/*metabolism ; *Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Solution structure of the integral human membrane protein VDAC-1 in detergent micelles (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-08-30
    Description: The voltage-dependent anion channel (VDAC) mediates trafficking of small molecules and ions across the eukaryotic outer mitochondrial membrane. VDAC also interacts with antiapoptotic proteins from the Bcl-2 family, and this interaction inhibits release of apoptogenic proteins from the mitochondrion. We present the nuclear magnetic resonance (NMR) solution structure of recombinant human VDAC-1 reconstituted in detergent micelles. It forms a 19-stranded beta barrel with the first and last strand parallel. The hydrophobic outside perimeter of the barrel is covered by detergent molecules in a beltlike fashion. In the presence of cholesterol, recombinant VDAC-1 can form voltage-gated channels in phospholipid bilayers similar to those of the native protein. NMR measurements revealed the binding sites of VDAC-1 for the Bcl-2 protein Bcl-x(L), for reduced beta-nicotinamide adenine dinucleotide, and for cholesterol. Bcl-x(L) interacts with the VDAC barrel laterally at strands 17 and 18.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2579273/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2579273/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hiller, Sebastian -- Garces, Robert G -- Malia, Thomas J -- Orekhov, Vladislav Y -- Colombini, Marco -- Wagner, Gerhard -- EB002026/EB/NIBIB NIH HHS/ -- GM066360/GM/NIGMS NIH HHS/ -- GM075879/GM/NIGMS NIH HHS/ -- GM47467/GM/NIGMS NIH HHS/ -- P01 GM047467/GM/NIGMS NIH HHS/ -- P01 GM047467-11/GM/NIGMS NIH HHS/ -- P01 GM047467-12/GM/NIGMS NIH HHS/ -- P01 GM047467-12S2/GM/NIGMS NIH HHS/ -- P01 GM047467-13/GM/NIGMS NIH HHS/ -- P01 GM047467-14/GM/NIGMS NIH HHS/ -- P01 GM047467-14S1/GM/NIGMS NIH HHS/ -- P01 GM047467-15/GM/NIGMS NIH HHS/ -- P01 GM047467-16/GM/NIGMS NIH HHS/ -- P01 GM047467-17/GM/NIGMS NIH HHS/ -- P41 EB002026/EB/NIBIB NIH HHS/ -- P41 EB002026-28/EB/NIBIB NIH HHS/ -- P41 EB002026-29/EB/NIBIB NIH HHS/ -- P41 EB002026-30/EB/NIBIB NIH HHS/ -- P41 EB002026-31/EB/NIBIB NIH HHS/ -- P41 EB002026-32/EB/NIBIB NIH HHS/ -- P41 EB002026-33/EB/NIBIB NIH HHS/ -- P41 GM066360/GM/NIGMS NIH HHS/ -- P41 GM066360-01/GM/NIGMS NIH HHS/ -- P41 GM066360-02/GM/NIGMS NIH HHS/ -- P41 GM066360-03/GM/NIGMS NIH HHS/ -- P41 GM066360-04/GM/NIGMS NIH HHS/ -- P41 GM066360-05/GM/NIGMS NIH HHS/ -- R01 GM075879/GM/NIGMS NIH HHS/ -- R01 GM075879-01/GM/NIGMS NIH HHS/ -- R01 GM075879-02/GM/NIGMS NIH HHS/ -- R01 GM075879-03/GM/NIGMS NIH HHS/ -- R01 GM075879-04/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2008 Aug 29;321(5893):1206-10. doi: 10.1126/science.1161302.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18755977" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Cholesterol/metabolism ; Detergents ; Dimethylamines ; Humans ; Hydrophobic and Hydrophilic Interactions ; Ion Channel Gating ; Lipid Bilayers ; Micelles ; Molecular Sequence Data ; NAD/metabolism ; Nuclear Magnetic Resonance, Biomolecular ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Recombinant Proteins/chemistry/metabolism ; Static Electricity ; Voltage-Dependent Anion Channel 1/*chemistry/*metabolism ; bcl-X Protein/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Conserved functions of membrane active GTPases in coated vesicle formation (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-09-05
    Description: Coated vesicles concentrate and package cargo molecules to mediate their efficient transport between intracellular compartments. Cytosolic coat proteins such as clathrin and adaptor complexes and coat protein complex I (COPI) and COPII self-assemble to deform the membrane and interact directly with cargo molecules to capture them in nascent buds. The guanosine triphosphatases (GTPases) Arf, Sar1, and dynamin are core components of the coated vesicle machinery. These GTPases, which associate with and dissociate from donor membranes in a guanosine triphosphate-dependent manner, can also actively remodel membranes. Recent evidence suggests that, although structurally diverse, Arf family GTPases and dynamin may play mechanistically similar roles as fidelity monitors that govern cargo packaging and coated vesicle maturation and as components of the fission machinery to mediate vesicle release.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2864031/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2864031/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pucadyil, Thomas J -- Schmid, Sandra L -- GM42455/GM/NIGMS NIH HHS/ -- GM73165/GM/NIGMS NIH HHS/ -- MH61345/MH/NIMH NIH HHS/ -- R01 GM042455/GM/NIGMS NIH HHS/ -- R01 GM042455-20/GM/NIGMS NIH HHS/ -- R01 GM073165/GM/NIGMS NIH HHS/ -- R01 GM073165-04/GM/NIGMS NIH HHS/ -- R37 MH061345/MH/NIMH NIH HHS/ -- R37 MH061345-10/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2009 Sep 4;325(5945):1217-20. doi: 10.1126/science.1171004.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, The Scripps Research Institute (TSRI), 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19729648" target="_blank"〉PubMed〈/a〉
    Keywords: ADP-Ribosylation Factor 1/chemistry/metabolism ; Animals ; COP-Coated Vesicles/chemistry/*metabolism/ultrastructure ; Cell Membrane/*metabolism/ultrastructure ; Clathrin-Coated Vesicles/chemistry/*metabolism/ultrastructure ; Dynamins/chemistry/metabolism ; GTP Phosphohydrolases/*metabolism ; Guanine Nucleotide Exchange Factors/metabolism ; Guanosine Diphosphate/metabolism ; Guanosine Triphosphate/metabolism ; Humans ; Monomeric GTP-Binding Proteins/chemistry/metabolism ; Protein Conformation ; Vesicular Transport Proteins/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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    Hax1-mediated processing of HtrA2 by Parl allows survival of lymphocytes and neurons (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-02-22
    Description: Cytokines affect a variety of cellular functions, including regulation of cell numbers by suppression of programmed cell death. Suppression of apoptosis requires receptor signalling through the activation of Janus kinases and the subsequent regulation of members of the B-cell lymphoma 2 (Bcl-2) family. Here we demonstrate that a Bcl-2-family-related protein, Hax1, is required to suppress apoptosis in lymphocytes and neurons. Suppression requires the interaction of Hax1 with the mitochondrial proteases Parl (presenilin-associated, rhomboid-like) and HtrA2 (high-temperature-regulated A2, also known as Omi). These interactions allow Hax1 to present HtrA2 to Parl, and thereby facilitates the processing of HtrA2 to the active protease localized in the mitochondrial intermembrane space. In mouse lymphocytes, the presence of processed HtrA2 prevents the accumulation of mitochondrial-outer-membrane-associated activated Bax, an event that initiates apoptosis. Together, the results identify a previously unknown sequence of interactions involving a Bcl-2-family-related protein and mitochondrial proteases in the ability to resist the induction of apoptosis when cytokines are limiting.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chao, Jyh-Rong -- Parganas, Evan -- Boyd, Kelli -- Hong, Cheol Yi -- Opferman, Joseph T -- Ihle, James N -- England -- Nature. 2008 Mar 6;452(7183):98-102. doi: 10.1038/nature06604. Epub 2008 Feb 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, St Jude Children's Research Hospital, Memphis, Tennessee 38105, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18288109" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis ; Cell Survival ; Genes, Lethal ; Lymphocytes/cytology/metabolism ; Metalloproteases/deficiency/*metabolism ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Mitochondrial Proteins/chemistry/deficiency/*metabolism ; Neurons/cytology/metabolism ; Protein Binding ; *Protein Processing, Post-Translational ; Proteins/genetics/*metabolism ; Serine Endopeptidases/chemistry/*metabolism ; bcl-2-Associated X Protein/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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