Annotated protein:SOS Ras/Rac guanine nucleotide exchange factor 1. Gene symbol: SOS1. Taxonomy: Rattus norvegicus (Rat). Uniprot ID: D4A3T0
antibody wiki:
SynGO gene info:SynGO data @ SOS1
Ontology domain:Cellular Component
SynGO term:postsynaptic density (GO:0014069)
Synapse type(s):hippocampus, glutamatergic
forebrain, glutamatergic
Annotated paper:Suzuki T, et al. "Presence of up-stream and downstream components of a mitogen-activated protein kinase pathway in the PSD of the rat forebrain" Brain Res. 1999 Sep 4;840(1-2):36-44 PMID:10517950
Figure(s):Figure 1, 5
Annotation description:Figure 1: Sos1 was enriched in PSD biochemical fractions prepared from rat forebrain.

Figure 5: electron microscopy of Sos1 in Rat hippocampus showed localization to the PSD.

"Similar immunoreactive aggregates (arrows in Fig. 5a) and a profile view of densely stained PSD (arrowheads in Fig. 5b and c) on the dendritic shaft and in the spines were observed for Sos immunoreactivity. Cytoskeletons in the dendrites were also immunoreactive for Sos. Presynaptic structures were negative for Sos. The specificity of the staining for both antibodies was confirmed by the lack of staining with non-immune immunoglobulins (not shown)."
Evidence tracking, Biological System:Intact tissue
Evidence tracking, Protein Targeting:Antibody (detection)
Evidence tracking, Experiment Assay:Electron Microscopy
Western blot
Biochemical fractionation (generic)
Annotator(s):Frank Koopmans (ORCID:0000-0002-4973-5732)
Guus Smit (ORCID:0000-0002-2286-1587)
Matthijs Verhage (ORCID:0000-0002-2514-0216)
Lab:Department of Functional Genomics, Department of Molecular and Cellular Neurobiology, Center for Neurogenomics and Cognitive Research, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
SynGO annotation ID:5480
Dataset release (version):20231201
View annotation as GO-CAM model:Gene Ontology