Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research
Date (from‐to) : 2015/04 -2018/03
Author : Umezawa Naoki; YOSHIKAWA Kenichi; YOSHIKAWA Yuko; UMEHARA Takashi; INOUE Katsuhisa
Polyamines are organic cations containing multiple amino groups, and are found in all living organisms. In most cases, polyamines have flexible structure and show wide variety of biological functions. We have been developing solid-phase synthesis of polyamines based on peptide chemistry; the peptide on the solid support was exhaustively reduced and crude polyamine thus obtained was purified by reversed-phase HPLC.
In this research, we have improved our solid-phase synthesis for branched and cyclic polyamines. Also, we have evaluated following 4 functions of synthesized polyamines, 1) the effect on DNA duplex structure, 2) lysine-specific demethylases inhibition, 3) prevention of thermal inactivation of protein, and 4) effect on ribozyme activity.