>sp|Q9ES17|IL21_MOUSE Interleukin-21 OS=Mus musculus GN=Il21
MERTLVCLVVIFLGTVAHKSSPQGPDRLLIRLRHLIDIVEQLKIYENDLDPELLSAPQDV
KGHCEHAAFACFQKAKLKPSNPGNNKTFIIDLVAQLRRRLPARRGGKKQKHIAKCPSCDS
YEKRTPKEFLERLKWLLQKMIHQHLS