Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2005-8-3
pubmed:abstractText
The expression of mesencephalic brain derived neurotrophic factor (BDNF) has been shown to be regulated by dopaminergic neuronal functioning and glutamate receptors (GluRs). In turn, BDNF participates in the regulation of mesencephalic GluRs' expression. In the present study we analyzed, using semi-quantitative RT-PCR, the effect of BDNF as well as of the GluRs agonists NMDA and trans-(+/-)-1-Amino-(1S,3R)-cyclopentane dicarboxylic acid (t-ACPD), on the expression levels of the NMDA GluR subunit 1 (NR1) mRNA, using rat cultured mesencephalic neurons. In the course of this study, a novel rat mRNA splice variant of NR1 was identified. This new NR1 mRNA isoform is characterized by the insertion of an 82 base pair intron containing an inframe stop codon, thus predicting the expression of a putative truncated protein of 465 amino acids. The RT-PCR and in situ hybridization reveals that the novel NR1 mRNA is expressed in various brain regions of the rat embryo, whereas no expression was detected in the adult rat brain. The modulation of the novel NR1 mRNA isoform by both BDNF and the metabotropic GluR agonist t-ACPD, suggests that the resulting putative NR1 truncated protein may be relevant in the regulatory network of glutamatergic neurotransmission in the developing central nervous system.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0364-3190
pubmed:author
pubmed:issnType
Print
pubmed:volume
30
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
567-76
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:16076026-Alternative Splicing, pubmed-meshheading:16076026-Amino Acid Sequence, pubmed-meshheading:16076026-Animals, pubmed-meshheading:16076026-Base Sequence, pubmed-meshheading:16076026-Brain, pubmed-meshheading:16076026-Brain Chemistry, pubmed-meshheading:16076026-Brain-Derived Neurotrophic Factor, pubmed-meshheading:16076026-Cell Survival, pubmed-meshheading:16076026-Cells, Cultured, pubmed-meshheading:16076026-Cloning, Molecular, pubmed-meshheading:16076026-Cycloleucine, pubmed-meshheading:16076026-Female, pubmed-meshheading:16076026-In Situ Hybridization, pubmed-meshheading:16076026-Mesencephalon, pubmed-meshheading:16076026-Molecular Sequence Data, pubmed-meshheading:16076026-Pregnancy, pubmed-meshheading:16076026-RNA, Messenger, pubmed-meshheading:16076026-Rats, pubmed-meshheading:16076026-Receptor, trkB, pubmed-meshheading:16076026-Receptors, N-Methyl-D-Aspartate, pubmed-meshheading:16076026-Reverse Transcriptase Polymerase Chain Reaction
pubmed:year
2005
pubmed:articleTitle
Novel alternative splicing predicts a truncated isoform of the NMDA receptor subunit 1 (NR1) in embryonic rat brain.
pubmed:affiliation
Department of Cell and Molecular Biology, Faculty of Biological Sciences, Laboratory of Biochemical Pharmacology, Catholic University of Chile, Santiago, Chile.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't