Relevance RGD ID Symbol Name Description Chr Start Stop Species Annotations Match Type 1000 1310949 Sos1 SOS Ras/Rac guanine nucleotide exchange factor 1 6 14533870 14613348 Rat n/a Region gene 999 1560224 Arhgef33 Rho guanine nucleotide exchange factor 33 6 14582922 14715014 Rat n/a Region gene