Peptide sequence: GLKLLSWLGS IIGYSDGLRR ILCQVGLQEG PDGENSSLVD RLMLSDSKLW Sequence homology: Cow: 100%; Dog: 100%; Guinea Pig: 100%; Horse: 100%; Human: 100%; Mouse: 100%; Rabbit: 93%; Rat: 100%; Zebrafish: 91%. The mammalian NUMB homolog plays a role in