Bioinformatics is a helpful tool for experimental studies. It is less time consuming and may provide a plat form for experimental work. Post translational modification is investigated in silico, with the help of the bioinformatics tool MAPRes. This tool mines association pattern around a modified residue and non-modified residue. In this work association rules were mined around acetylated Lys residues in proteins. For this purpose 393 proteins were collected from the dbPTM database. The rules showed by MAPRes are highest preference for Alanine, Histidine, Lysine and Glycine in modified...