Annotated protein:Brain-specific angiogenesis inhibitor 1-associated protein 2 (BAI-associated protein 2) (BAI1-associated protein 2) (Insulin receptor substrate protein of 53 kDa) (IRSp53) (Insulin receptor substrate p53) (Insulin receptor tyrosine kinase substrate protein p53). Gene symbol: BAIAP2. Taxonomy: Rattus norvegicus (Rat). Uniprot ID: Q6GMN2
antibody wiki:
SynGO gene info:SynGO data @ BAIAP2
Ontology domain:Cellular Component
SynGO term:postsynaptic density, intracellular component (GO:0099092)
Synapse type(s):hippocampus, glutamatergic
Annotated paper:Choi J, et al. "Regulation of dendritic spine morphogenesis by insulin receptor substrate 53, a downstream effector of Rac1 and Cdc42 small GTPases" J Neurosci. 2005 Jan 26;25(4):869-79 PMID:15673667
Figure(s):fig 2/3/4
Annotation description:Immuno-EM localization of IRSp53 (BAIAP2) in the CA1 stratum radiatum of rat hippocampus. Numerous IRSp53 immunogold particles are associated with postsynaptic structures.

Fig. 3 Colocalization of IRSp53 with PSD-95 in cultured neurons and synaptic localization of IRSp53 in brain sections. Shows colocalization of IRSp53 and PSD-95 in cultured hippocampal neurons (21 DIV).

Furthermore crude synaptosomal extracts of adult rat brain immunoprecipitated with IRSp53 shows IRSp53 interaction with PSD-95 family in brain (Fig.2).
Evidence tracking, Biological System:Intact tissue
Cultured neurons
Evidence tracking, Protein Targeting:Antibody (detection)
Evidence tracking, Experiment Assay:Electron Microscopy
Confocal
Western blot
Biochemical fractionation (generic)
IP + WB/MSMS
Annotator(s):Alexandros Kanellopoulos (ORCID:0000-0002-2094-7491)
Vittoria Mariano (ORCID:0000-0002-9848-0262)
Achsel Tilmann (ORCID:0000-0002-1190-4481)
Claudia Bagni (ORCID:0000-0002-4419-210X)
Lab:Department of Fundamental Neurosciences, University of Lausanne, CH-1006 Lausanne, Switzerland; Dept Biomedicine and Prevention, University of Rome Tor Vergata, 00133 Rome, Italy
Additional literature:Cultured rat hippocampal neurons double stained with anti-IRSp58/53 and synaptophysin show IRSp53 presence at synapses (Fig 7). @ PMID:10460236
SynGO annotation ID:549
Dataset release (version):20231201
View annotation as GO-CAM model:Gene Ontology