Peptide sequence: LKASLSRPLN YEPHKGKLKP WGQSKENNYL NQHVNRINFY KKTYKQPHLQ Sequence homology: Cow: 100%; Dog: 100%; Guinea Pig: 100%; Horse: 100%; Human: 100%; Mouse: 93%; Rabbit: 100%; Rat: 93%; Zebrafish: 86%. Ubiquitin: exists either covalently attached