References
PMID:16112081
In vitro, GrinchGEF (ARHGEF10L) induced the GDP/ GTP exchange at RhoA, but not at Rac1 or Cdc42.
In intact cells, GrinchGEF induced specifically Rho activation and enhanced RhoA,B,C-specific downstream effect.
GrinchGEF, similar to its relative p164-RhoGEF (ARHGEF17), is a Rho-specific GEF.
Although RhoA, B, and C have different cellular functions, and some regulators and effectors show preferential interaction with these Rho isoforms, GrinchGEF apparently does not distinguish between RhoA,B,C and similarly activates these Rho proteins