>sp|Q66JY6-2|ARG39_MOUSE Rho guanine nucleotide exchange factor 39 OS=Mus musculus GN=Arhgef39 MFFLFSDVLLMAKPRPPLHLLKSGTFVCRALYPMSQCHLSRVFGHSGGPCGGLLSLSFPH EKLLLMSTDQEELSQWHHSLTLAIRSQKSSTHRSVTAT