>sp|Q66JY6-2|ARG39_MOUSE Isoform 2 of Rho guanine nucleotide exchange factor 39 OS=Mus musculus OX=10090 GN=Arhgef39 MFFLFSDVLLMAKPRPPLHLLKSGTFVCRALYPMSQCHLSRVFGHSGGPCGGLLSLSFPH EKLLLMSTDQEELSQWHHSLTLAIRSQKSSTHRSVTAT