| Primary Identifier | IPR042139 | Type | Domain |
| Short Name | PX_ARHGAP32 |
| description | This entry represents the PX domain found in Rho GTPase-activating protein 32 (ARHGAP32, also known as RICS). RICS is a Rho GTPase-activating protein for cdc42 and Rac1. It is implicated in the regulation of postsynaptic signaling and neurite outgrowth. An N-terminal splicing variant of RICS containing additional PX and Src Homology 3 (SH3) domains, also called PX-RICS, is the main isoform expressed during neural development. PX-RICS is involved in neural functions including axon and dendrite extension, postnatal remodeling, and fine-tuning of neural circuits during early brain development []. The PX domain is involved in targeting of proteins to PI-enriched membranes, and may also be involved in protein-protein interaction []. The PX domain of PX-RICS specifically binds phosphatidylinositol 3-phosphate (PI3P), PI4P, and PI5P []. |
