Oligophosphopeptides of varied structural complexity derived from the egg phosphoprotein, phosvitin.


Phosvitins are the principal phosphoproteins in the eggs of oviparous vertebrates. They have an exceptionally high serine content and most, or even all, of the serine residues are esterified to phosphate. The phosphorylated residues tend to occur in uninterrupted runs of as many as 28 phosphoserines (as in Xenopus phosvitin). This unique structural feature… (More)