Linked Life Data

9651538

Source:http://linkedlifedata.com/resource/pubmed/id/9651538

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2-3
pubmed:dateCreated
1998-8-28
pubmed:abstractText
We have applied techniques from modern molecular biology and biochemistry to unravel the complex molecular structure of the postsynaptic membrane at glutamatergic synapses in the central nervous system. We have characterized a set of new proteins that are constituents of the postsynaptic density, including PSD-95, densin-180, citron (a rho/rac effector protein), and synaptic gp130 Ras GAP (a new Ras GTPase-activating protein). The structure of PSD-95 revealed a new protein motif, the PDZ domain, that plays an important role in the assembly of signal transduction complexes at intercellular junctions. More recently, we have used new imaging tools to observe the dynamics of autophosphorylation of CaM kinase II in intact hippocampal tissue. We have been able to detect changes in the amount of autophosphorylated CaM kinase II in dendrites, individual synapses, and somas of hippocampal neurons following induction of long-term potentiation by tetanic stimulation. In addition, we have observed a specific increase in the concentration of CaM kinase II in dendrites of neurons receiving tetanic stimulation. This increase appears to be the result of dendritic synthesis of new protein. Over the next several years we will apply similar methods to study regulatory changes that occur at the molecular level in glutamatergic synapses in the CNS as the brain processes and stores new information.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
http://linkedlifedata.com/resource/pubmed/chemical/Calcium-Calmodulin-Dependent..., http://linkedlifedata.com/resource/pubmed/chemical/Calcium-Calmodulin-Dependent..., http://linkedlifedata.com/resource/pubmed/chemical/Drosophila Proteins, http://linkedlifedata.com/resource/pubmed/chemical/Glutamic Acid, http://linkedlifedata.com/resource/pubmed/chemical/Insect Proteins, http://linkedlifedata.com/resource/pubmed/chemical/Nerve Tissue Proteins, http://linkedlifedata.com/resource/pubmed/chemical/Receptors, N-Methyl-D-Aspartate, http://linkedlifedata.com/resource/pubmed/chemical/Sialoglycoproteins, http://linkedlifedata.com/resource/pubmed/chemical/canoe protein, Drosophila, http://linkedlifedata.com/resource/pubmed/chemical/postsynaptic density proteins, http://linkedlifedata.com/resource/pubmed/chemical/ras Proteins
pubmed:status
MEDLINE
pubmed:month
May
pubmed:author
pubmed:copyrightInfo
Copyright 1998 Elsevier Science B.V. All rights reserved.
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
243-57
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Signal transduction molecules at the glutamatergic postsynaptic membrane.
pubmed:affiliation
Division of Biology 216-76, California Institute of Technology, Pasadena, CA 91125, USA. kennedym@cco.caltech.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S., Review, Research Support, Non-U.S. Gov't