2.1.1.34	caldohexamine	1 mM caldohexamine increases TrmH activity at 60-80°C. No positive effect on the TrmH activity at 55°C	757113	
2.1.1.34	Polyamine	higher concentrations of linear polyamines inhibit TrmH activity at 55°C, while optimum concentration increases TrmH activity at 45-75°C	757113	
2.1.1.34	S-adenosyl-L-methionine	enhances the affinity for tRNA and induces formation of the tetramer structure	674692	
2.1.1.34	spermine	activation, 5 mM	637157	
2.1.1.34	tetrakis(3-aminopropyl)ammonium	0.25 mM, increases TrmH activity at 40-85°C	757113