Reaction catalyzed by aspartate/glutamate leucyltransferase (2.3.2.29)

		+		N-terminal L-glutamyl-[protein]	=			+		N-terminal L-leucyl-L-glutamyl-[protein]
	L-leucyl-tRNALeu	+		N-terminal L-glutamyl-[protein]	=		tRNALeu	+		N-terminal L-leucyl-L-glutamyl-[protein]