passages.id: split_1_test_2817_passage
passages.type: progene_text
passages.text: Stimulation of mRNA translation was reduced by mutations of Arg116 , Arg129 and , to a lesser extent , of Arg99 , Arg112 and Arg131 whereas inhibition of non - canonical mRNA translation was affected by substitutions of Arg99 , Arg112 , Arg168 and , to a lesser extent , Arg116 , Arg129 and Arg131 .