Ramon Jorquera

Summary

Affiliation: Universidad Central del Caribe
Location: Bayamon, Puerto Rico

Publications

  1. pmc Abnormal synaptic vesicle biogenesis in Drosophila synaptogyrin mutants
    Robin J Stevens
    The Picower Institute for Learning and Memory, Department of Biology, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
    J Neurosci 32:18054-67, 18067a. 2012
  2. pmc Differential regulation of evoked and spontaneous neurotransmitter release by C-terminal modifications of complexin
    Lauren K Buhl
    Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
    Mol Cell Neurosci 52:161-72. 2013
  3. pmc A presynaptic endosomal trafficking pathway controls synaptic growth signaling
    Avital A Rodal
    Department of Biology, The Picower Institute for Learning and Memory, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
    J Cell Biol 193:201-17. 2011
  4. pmc DMob4/Phocein regulates synapse formation, axonal transport, and microtubule organization
    Joost Schulte
    Department of Biology and Brain and Cognitive Sciences, Massachusetts Institute of Technology, The Picower Institute for Learning and Memory, Cambridge, Massachusetts 02139, USA
    J Neurosci 30:5189-203. 2010
  5. pmc Postsynaptic regulation of synaptic plasticity by synaptotagmin 4 requires both C2 domains
    Cynthia F Barber
    Department of Biology, The Picower Institute for Learning and Memory, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
    J Cell Biol 187:295-310. 2009
  6. pmc Drosophila melanogaster Scramblases modulate synaptic transmission
    Usha Acharya
    Laboratory of Protein Dynamics and Signaling, National Cancer Institute Frederick, Frederick, MD 21702, USA
    J Cell Biol 173:69-82. 2006
  7. ncbi request reprint Permeability changes induced by polylysines in rat spermatids
    Ramon A Jorquera
    Instituto de Quimica, Universidad Catolica de Valparaiso, Casilla 4059, Valparaiso, Chile
    Biol Cell 94:233-41. 2002
  8. ncbi request reprint Dynamics of intracellular calcium induced by lactate and glucose in rat pachytene spermatocytes and round spermatids
    J G Reyes
    Instituto de Quimica, Universidad Catolica de Valparaiso, Avda Brasil 2950, Casilla 4059, Chile
    Reproduction 123:701-10. 2002
  9. pmc Complexin controls spontaneous and evoked neurotransmitter release by regulating the timing and properties of synaptotagmin activity
    Ramon A Jorquera
    The Picower Institute for Learning and Memory, Departments of Biology and Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
    J Neurosci 32:18234-45. 2012

Collaborators

Detail Information

Publications10

  1. pmc Abnormal synaptic vesicle biogenesis in Drosophila synaptogyrin mutants
    Robin J Stevens
    The Picower Institute for Learning and Memory, Department of Biology, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
    J Neurosci 32:18054-67, 18067a. 2012
    ..These results suggest that synaptogyrin modulates the synaptic vesicle exo-endocytic cycle and is required for the proper biogenesis of synaptic vesicles at nerve terminals...
  2. pmc Differential regulation of evoked and spontaneous neurotransmitter release by C-terminal modifications of complexin
    Lauren K Buhl
    Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
    Mol Cell Neurosci 52:161-72. 2013
    ....
  3. pmc A presynaptic endosomal trafficking pathway controls synaptic growth signaling
    Avital A Rodal
    Department of Biology, The Picower Institute for Learning and Memory, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
    J Cell Biol 193:201-17. 2011
    ..Our results define a presynaptic trafficking pathway mediated by SNX16, NWK, and the ESCRT complex that functions to control synaptic growth signaling at the interface between endosomal compartments...
  4. pmc DMob4/Phocein regulates synapse formation, axonal transport, and microtubule organization
    Joost Schulte
    Department of Biology and Brain and Cognitive Sciences, Massachusetts Institute of Technology, The Picower Institute for Learning and Memory, Cambridge, Massachusetts 02139, USA
    J Neurosci 30:5189-203. 2010
    ..These findings suggest a novel role for Phocein proteins in the regulation of axonal transport, neurite elongation, synapse formation, and microtubule organization...
  5. pmc Postsynaptic regulation of synaptic plasticity by synaptotagmin 4 requires both C2 domains
    Cynthia F Barber
    Department of Biology, The Picower Institute for Learning and Memory, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
    J Cell Biol 187:295-310. 2009
    ..These data suggest that Syt 4 regulates activity-dependent release of postsynaptic retrograde signals that promote synaptic plasticity, similar to the role of Syt 1 as a Ca(2+) sensor for presynaptic vesicle fusion...
  6. pmc Drosophila melanogaster Scramblases modulate synaptic transmission
    Usha Acharya
    Laboratory of Protein Dynamics and Signaling, National Cancer Institute Frederick, Frederick, MD 21702, USA
    J Cell Biol 173:69-82. 2006
    ..The lack of phenotypes related to failure of scrambling and the neurophysiological analysis lead us to propose that Scramblases play a modulatory role in the process of neurotransmission...
  7. ncbi request reprint Permeability changes induced by polylysines in rat spermatids
    Ramon A Jorquera
    Instituto de Quimica, Universidad Catolica de Valparaiso, Casilla 4059, Valparaiso, Chile
    Biol Cell 94:233-41. 2002
    ..High concentrations of HMW PL induced cell lysis (K(1/2) = 23 microg/ml). The binding of HMW PL, initially homogenous on the cell surface, subsequently progressed to a segregated pattern resembling a clustering phenomenon...
  8. ncbi request reprint Dynamics of intracellular calcium induced by lactate and glucose in rat pachytene spermatocytes and round spermatids
    J G Reyes
    Instituto de Quimica, Universidad Catolica de Valparaiso, Avda Brasil 2950, Casilla 4059, Chile
    Reproduction 123:701-10. 2002
    ..Thus, differentiation-related changes in carbohydrate metabolism in spermatogenic cells determine a dynamic and differential modulation of their [Ca2+](i) by glucose and lactate, two substrates secreted by the Sertoli cells...
  9. pmc Complexin controls spontaneous and evoked neurotransmitter release by regulating the timing and properties of synaptotagmin activity
    Ramon A Jorquera
    The Picower Institute for Learning and Memory, Departments of Biology and Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
    J Neurosci 32:18234-45. 2012
    ..These observations indicate CPX regulates both spontaneous and evoked fusion by modulating the timing and properties of SYT activation during the synaptic vesicle cycle...