Peptide sequence: SQYQQNNHVH GQPYTGPAAH HMNNPQRTGQ RAQENYEGSE EVSPPQTKDQ Sequence homology: Cow: 100%; Dog: 100%; Horse: 93%; Human: 100%; Mouse: 93%; Pig: 100%; Rabbit: 100%; Rat: 100%. USP9X is an ubiquitin-specific protease involved in the removal and