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  • Image Processing, Computer-Assisted  (1)
  • Rats  (1)
  • SNARE Proteins/chemistry/*metabolism  (1)
  • American Association for the Advancement of Science (AAAS)  (2)
  • Nature Publishing Group
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Publisher
  • American Association for the Advancement of Science (AAAS)  (2)
  • Nature Publishing Group
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  • 1
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2011-07-02
    Description: The coxa-trochanteral joints on the legs of the weevil Trigonopterus oblongus (Pascoe) work as a biological screw-and-nut system. The apical portions of the coxae closely resemble nuts with well-defined inner threads covering 345 degrees . The corresponding trochanters have perfectly compatible external spiral threads of 410 degrees .〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉van de Kamp, Thomas -- Vagovic, Patrik -- Baumbach, Tilo -- Riedel, Alexander -- New York, N.Y. -- Science. 2011 Jul 1;333(6038):52. doi: 10.1126/science.1204245.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉ANKA-Institute for Synchrotron Radiation, Karlsruhe Institute of Technology, D-76344 Eggenstein-Leopoldshafen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21719669" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Extremities/anatomy & histology/physiology ; Image Processing, Computer-Assisted ; Joints/anatomy & histology/physiology ; Movement ; Muscles/anatomy & histology/physiology ; Rotation ; Weevils/*anatomy & histology/*physiology
    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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  • 2
    Publication Date: 2012-06-02
    Description: Cellular membrane fusion is thought to proceed through intermediates including docking of apposed lipid bilayers, merging of proximal leaflets to form a hemifusion diaphragm, and fusion pore opening. A membrane-bridging four-helix complex of soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNAREs) mediates fusion. However, how assembly of the SNARE complex generates docking and other fusion intermediates is unknown. Using a cell-free reaction, we identified intermediates visually and then arrested the SNARE fusion machinery when fusion was about to begin. Partial and directional assembly of SNAREs tightly docked bilayers, but efficient fusion and an extended form of hemifusion required assembly beyond the core complex to the membrane-connecting linkers. We propose that straining of lipids at the edges of an extended docking zone initiates fusion.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3677693/" 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/PMC3677693/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hernandez, Javier M -- Stein, Alexander -- Behrmann, Elmar -- Riedel, Dietmar -- Cypionka, Anna -- Farsi, Zohreh -- Walla, Peter J -- Raunser, Stefan -- Jahn, Reinhard -- 3P01GM072694-05S1/GM/NIGMS NIH HHS/ -- P01 GM072694/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2012 Jun 22;336(6088):1581-4. doi: 10.1126/science.1221976. Epub 2012 May 31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Max Planck Institute for Biophysical Chemistry, Gottingen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22653732" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Lipid Bilayers/chemistry/*metabolism ; *Liposomes/chemistry/metabolism ; *Membrane Fusion ; Protein Binding ; Protein Conformation ; Rats ; SNARE Proteins/chemistry/*metabolism ; Vesicle-Associated Membrane Protein 2/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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