Peptide sequence: MMKEHERREY LKTLNEEKRK EEESKFEEMK KKHENHPKVN HPGSKDQLKE Sequence homology: Cow: 93%; Dog: 100%; Guinea Pig: 86%; Horse: 100%; Human: 100%; Mouse: 93%; Pig: 100%; Rabbit: 93%; Rat: 93%; Yeast: 91%. NUCB2 was initially identified as calciu