>sp|Q08326|MSS4_RAT Guanine nucleotide exchange factor MSS4 OS=Rattus norvegicus GN=Rabif MEPCELQNELVSAEGRNRKAVLCQRCGSRVLQPGTALFSRRQLFLPSMRKKPDLVDGSNP DGDVLEEHWLVNDMFIFENVGFTKDVGNVKFLVCADCEIGPIGWHCLDDKNSFYVALERV SHE