>sp|A3QPB9|IL21_RAT Interleukin-21 OS=Rattus norvegicus GN=Il21
MERTLVCLILIFLGTVAHKSSPQRPDHLLIRLRHLMDIVEQLKIYENDLDPELLTAPQDV
KGQCEHEAFACFQKAKLKPSNTGNNKTFINDLLAQLRRRLPAKRTGNKQRHMAKCPSCDL
YEKKTPKEFLERLKWLLQKMIHQHLS