<prompt> Most peptide and protein hormones are synthesized asA secretagogueA pleiotropic hormoneProopiomelanocoin POMCA preprohormone  <response>: Preprohormones are the gene products for most peptide and protein hormones. These are rapidly cleaved to form prohormones. POMC and propressophysin are two examples of specific prohormones.Ref: Guyton; 13th edition 