Annotated protein:cAMP-dependent protein kinase type I-beta regulatory subunit. Gene symbol: PRKAR1B. Taxonomy: Mus musculus (Mouse). Uniprot ID: P12849
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SynGO gene info:SynGO data @ PRKAR1B
Ontology domain:Biological Process
SynGO term:modulation of chemical synaptic transmission (GO:0050804)
Synapse type(s):hippocampus, glutamatergic
Schaffer collateral synapse (CA3->CA1)
Annotated paper:Brandon EP, et al. "Hippocampal long-term depression and depotentiation are defective in mice carrying a targeted disruption of the gene encoding the RI beta subunit of cAMP-dependent protein kinase" Proc Natl Acad Sci U S A. 1995 Sep 12;92(19):8851-5 PMID:7568030
Figure(s):Figure 4 A
Annotation description:A knockout mouse line for PKA R1 beta is used to study its role in synaptic plasticity. It is shown that long term depression (LTD) at the schaffer collaterals is severely reduced in this mouse line. This demonstrates a role for R1 beta in LTD.

LTD is a postsynaptic process, requiring the endocytosis of AMPA receptors (Beattie et. al.). The exact mechanisms by which PKAs act in LTD is not understood, but requires phosphorylation of GluR1 (Man et.al.).
Evidence tracking, Biological System:Intact tissue
Evidence tracking, Protein Targeting:Genetic transformation (eg; knockout, knockin, mutations)
Evidence tracking, Experiment Assay:Field recordings
Annotator(s):Arthur de Jong (ORCID:0000-0002-7620-2704)
Pascal Kaeser (ORCID:0000-0002-1558-1958)
Lab:Department of Neurobiology, Harvard Medical School, Boston, MA 02115, USA
Additional literature:Beattie et.al. demonstrates that LTD requires endocytosis of AMPA receptors. @ PMID:11100150

Man et al. demonstrates that PKA mediated phoshorylation of GluR1 regulates AMPA receptor trafficking. @ PMID:17360685
SynGO annotation ID:439
Dataset release (version):20231201
View annotation as GO-CAM model:Gene Ontology