Annotated protein:Rho GTPase-activating protein 44 (Rho-type GTPase-activating protein RICH2) (RhoGAP interacting with CIP4 homologs protein 2) (RICH-2). Gene symbol: ARHGAP44. Taxonomy: Mus musculus (Mouse). Uniprot ID: Q5SSM3
antibody wiki:
SynGO gene info:SynGO data @ ARHGAP44
Ontology domain:Biological Process
SynGO term:regulation of neurotransmitter receptor transport, endosome to postsynaptic membrane (GO:0099152)
Synapse type(s):hippocampus, glutamatergic
Annotated paper:Raynaud F, et al. "Shank3-Rich2 interaction regulates AMPA receptor recycling and synaptic long-term potentiation" J Neurosci. 2013 Jun 5;33(23):9699-715 PMID:23739967
Figure(s):figure 3-5
Annotation description:Fig.3B/C Rich2 KD (shRNA) decreases transferrin-rhodamine recycling in neurons and COS-7 cells [fluorescent pulse-chase].

Fig.3D Rich2 promotes recycling of GFP-tagged AMPARs to the surface of hipp neurons

Fig.4/5 Rich2 activity is needed for spine enlargement induced by chemical LTP and increase of synaptic currents, and increase of surface levels of synaptic AMPARs [fixed tissue] (NMDAR activation) [Rich2 KD, OE Rich2 mutant proteins]

11/12/2017 Pim
- Since ARHGAP44 / Rich2 is a regulator of signaling and not a transporting protein itself I have selected the "regulates..." variant of the term.
Evidence tracking, Biological System:Cultured neurons
Evidence tracking, Protein Targeting:Over-expression
Evidence tracking, Experiment Assay:Confocal
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:2111
Dataset release (version):20231201
View annotation as GO-CAM model:Gene Ontology