Annotated protein:SLIT-ROBO Rho GTPase-activating protein 2 (srGAP2) (Formin-binding protein 2) (Formin-binding protein 27) (FBP-27). Gene symbol: SRGAP2. Taxonomy: Mus musculus (Mouse). Uniprot ID: Q91Z67
antibody wiki:
SynGO gene info:SynGO data @ SRGAP2
Ontology domain:Cellular Component
SynGO term:postsynaptic density (GO:0014069)
Synapse type(s):cerebral cortex, glutamatergic
Annotated paper:Charrier C, et al. "Inhibition of SRGAP2 function by its human-specific paralogs induces neoteny during spine maturation" Cell. 2012 May 11;149(4):923-35 PMID:22559944
Figure(s):figure 4a-b, figure S4
Annotation description:In Fig. 4A Srgap2 antibody staining shows a punctate pattern which overlaps with presynaptic marker Synapsin1 and excitatory postsynaptic marker Homer1. In Fig. 4B overexpressed Srgap2-mRFP shows colocalization with overexpressed Homer1c-GFP in dendritic spines.

Figure S4 shows Immunoblots of homogenates and synaptic fractions from P15 mouse brains. SRGAP2 is enriched biochemical fractions of the postsynaptic density (PSD) similar to SAP102 (DLG3).
Evidence tracking, Biological System:Cultured neurons
Evidence tracking, Protein Targeting:Antibody (detection)
Evidence tracking, Experiment Assay:Confocal
Annotator(s):Jessie Brunner
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
Additional literature:Fossatti et al. 2016 show in Figure 2 that Srgap2 colocalizes with excitatory postsynaptic marker Homer1 and inhibitory postsynaptic marker Gephryn. SRGAP2 interacts with Homer1 and Gephyrin in co-immunoprecipitation assays @ PMID:27373832

Yao et al. describe the generation of the C-terminal Srgap2 antibody in the methods section and show the alignment of the amino acid sequences of the low homologous domains of the respective srGAP, which were used to generate the antibodies (Fig. 1). @ PMID:17710530
SynGO annotation ID:4900
Dataset release (version):20231201
View annotation as GO-CAM model:Gene Ontology