rho-1 encodes a Rho GTPase; rho-1 activity is required for regulation of a number of actin filament-based processes including embryonic polarity, cell migration, cell shape changes, muscle contraction, and neurite outgrowth; in addition, RHO-1 is required for both DGK-1- and UNC-13-dependent and independent regulation of synaptic signaling at neuromuscular junctions; as RHO-1 binds DGK-1 in vitro, its regulation of DGK-1-mediated signaling may be direct; in vitro RHO-1 GTPase activity is enhanced by the RGA-3 and RGA-4 GAP proteins, consistent with genetic studies showing that, in the early embryo, RHO-1 activity is required for expression of the rga-3/4(RNAi) hypercontractibility phenotype; RHO-1 is ubiquitously expressed throughout development with notably high expression seen in head neurons and asymmetric expression seen in the anterior cortex of one-cell embryos.
Enables several functions, including GTP binding activity; GTPase activating protein binding activity; and GTPase activity. Involved in several processes, including actomyosin structure organization; positive regulation of acetylcholine secretion, neurotransmission; and positive regulation of locomotion. Located in cell cortex and cleavage furrow. Expressed widely. Human ortholog(s) of this gene implicated in several diseases, including colorectal cancer; multiple sclerosis; and ovarian carcinoma. Is an ortholog of human RHOA (ras homolog family member A).
Map position created from combination of previous interpolated map position (based on known location of sequence) and allele information. Therefore this is not a genetic map position based on recombination frequencies or genetic experiments. This was done on advice of the CGC.