NO, rosebud- only a very few hormones have a protein-like structure, the most important ones do not. The steriods are substituted sterols, polycyclic molecules with no structural relationship to proteins. The truth is, very few bioactive agents/hormones are similar structurally to proteins most of the most common ones are either aliphatic amines (serotonin, melotonin,epinepherine), cyclical polyrings of various kinds, or have other shapes and structures. Please, don't try to lecture me on subjects you do not know anything about.