Phosphorylation of peptides is one of the most frequently occurring post-translational modifications of peptides and proteins. Phosphorylation/dephosphorylation plays a key roll in activation/deactivation of many proteins. Furthermore, phosphorylated amino acids are found in several recognition sites of proteins.

BIOSYNTAN offers phosphorylation at serine, threonine and tyrosine:

Multiple phosphorylation is one of the real challenges in peptide synthesis. Due to continued research, BIOSYNTAN has gained excellent expertise in synthesizing peptides containing several phosphorylation sites.