What is an example of a simple protein found in eggs?

Most of the proteins in egg yolks have lipoproteins. The lipoproteins are divided into two groups: a plasma and a granule fraction. The granule portion has a phosphoprotein, that is 54% serine. Serine is a amino acid that can act as a carrier of calcium or iron ions in biological systems.

A protein, such as a globulin or histone, that yields only amino acids upon hydrolysis.