Some peptides on the other hand have -- at present -- no other peptides with which they share sequences of amino acids. Since they have no "family" , Brain Brower refers to them as "orphans". Some of these orphan peptides include: Angiotensin Neurotensin Bombesin "ODN" Calcitonin-Gene Related Peptide Cholecystokinin* Somatostatin* Gonadotropin Releasing Hormone TRH