>sp|Q5HZY2|SAR1B_RAT GTP-binding protein SAR1b OS=Rattus norvegicus GN=Sar1b MSFIFDWIYSGFSSVLQFLGLYKKTGKLVFLGLDNAGKTTLLHMLKDDRLGQHVPTLHPT SEELTIAGMTFTTFDLGGHLQARRVWKNYLPAINGIVFLVDCADHERLLESKEELDSLMT DETIANVPILILGNKIDRPEAISEERLREMFGLYGQTTGKGSVSLKELNARPLEVFMCSV LKRQGYGEGFRWMAQYID