>gi|62243586 ubiquitin-specific protease 21 [Homo sapiens] MPQASEHRLGRTREPPVNIQPRVGSKLPFAPRARSKERRNPASGPNPMLR PLPPRPGLPDERLKKLELGRGRTSGPRPRGPLRADHGVPLPGSPPPTVAL PLPSRTNLARSKSVSSGDLRPMGIALGGHRGTGELGAALSRLALRPEPPT LRRSTSLRRLGGFPGPPTLFSIRTEPPASHGSFHMISARSSEPFYSDDKM AHHTLLLGSGHVGLRNLGNTCFLNAVLQCLSSTRPLRDFCLRRDFRQEVP GGGRAQELTEAFADVIGALWHPDSCEAVNPTRFRAVFQKYVPSFSGYSQQ DAQEFLKLLMERLHLEINRRGRRAPPILANGPVPSPPRRGGALLEEPELS DDDRANLMWKRYLEREDSKIVDLFVGQLKSCLKCQACGYRSTTFEVFCDL SLPIPKKGFAGGKVSLRDCFNLFTKEEELESENAPVCDRCRQKTRSTKKL TVQRFPRILVLHLNRFSASRGSIKKSSVGVDFPLQRLSLGDFASDKAGSP VYQLYALCNHSGSVHYGHYTALCRCQTGWHVYNDSRVSPVSENQVASSEG YVLFYQLMQEPPRCL