Cycloleucine

Cycloleucine is a specific inhibitor of S-adenosyl-methionine mediated methylation. Cycloleucine is antagonist of NMDA receptor associated glycine receptor, with a Ki of 600 μM. Cycloleucine is also a competitive inhibitor of ATP: L-methionine-S-adenosyl transferase in vitro. Cycloleucine has anxiolytic and cytostatic effects[1][2][3][4].

[1]Hood WF, et, al. 1-Aminocyclobutane-1-carboxylate (ACBC): a specific antagonist of the N-methyl-D-aspartate receptor coupled glycine receptor. Eur J Pharmacol. 1989 Feb 28;161(2-3):281-2.|[2]Caboche M, et, al. RNA methylation and control of eukaryotic RNA biosynthesis. Effects of cycloleucine, a specific inhibitor of methylation, on ribosomal RNA maturation. Eur J Biochem. 1977 Mar 15;74(1):19-29.|[3]Gargiulo API, et, al. Effects of Cycloleucine in the Nucleus Accumbens Septi on the Elevated plus Maze Test in Rats. Neuropsychobiology. 2020;79(3):191-197.|[4]Dimock K, et, al. Cycloleucine blocks 5'-terminal and internal methylations of avian sarcoma virus genome RNA. Biochemistry. 1978 Aug 22;17(17):3627-32.|[5]Duś D, et, al. Cytostatic activity in vitro of cycloleucine, aspartic acid and glutamic acid phosphonic analogues. Arch Immunol Ther Exp (Warsz). 1980;28(3):433-8.|[6]S Amor, et al. The effect of cycloleucine on SFV A7(74) infection in mice. Br J Exp Pathol. 1987 Apr;68(2):225-35.