Annotated protein:IQ motif and SEC7 domain-containing protein 2. Gene symbol: IQSEC2. Taxonomy: Mus musculus (Mouse). Uniprot ID: Q5DU25
antibody wiki:
SynGO gene info:SynGO data @ IQSEC2
Ontology domain:Cellular Component
SynGO term:postsynaptic density membrane (GO:0098839)
Synapse type(s):hippocampus
cerebellum
Annotated paper:Sakagami H, et al. "IQ-ArfGEF/BRAG1 is a guanine nucleotide exchange factor for Arf6 that interacts with PSD-95 at postsynaptic density of excitatory synapses" Neurosci Res. 2008 Feb;60(2):199-212 PMID:18164504
Figure(s):Fig. 6, 7, 9
Annotation description:Fig9 shows quantitative immuno-EM for BRAG1 in mouse hippocampus. The most gold particles are detected directly adjacent (within 30 nm, is about the size of the primary and secondary antibody combined) to the post-synaptic membrane with little particles detected at the presynaptic side.

25/10/2017 Pim
- IQSEC2; BRAG1; IQ-ArfGEF binds PSD-95 a marker of the PSD.
Evidence tracking, Biological System:Intact tissue
Non-neuronal tissue
Evidence tracking, Protein Targeting:Over-expression
Antibody (detection)
Evidence tracking, Experiment Assay:Electron Microscopy
Confocal
Western blot
Biochemical fractionation (generic)
IP + WB/MSMS
Annotator(s):Jan van Weering (ORCID:0000-0001-5259-4945)
Matthijs Verhage (ORCID:0000-0002-2514-0216)
Lab:Department of Functional Genomics, Center for Neurogenomics and Cognitive Research, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
SynGO annotation ID:1361
Dataset release (version):20231201
View annotation as GO-CAM model:Gene Ontology