6.1.1.21	7.2	-	assay at	716387	
6.1.1.21	7.2	7.8	Tris-HCl buffer	368	
6.1.1.21	7.4	-	histidyl-tRNA formation	369	
6.1.1.21	7.5	-	-	716383	
6.1.1.21	7.5	-	aminoacylation assay at	677092	
6.1.1.21	7.5	-	assay at	650256	
6.1.1.21	8	-	diphosphate exchange assay at	677092	
6.1.1.21	8	8.5	-	373	
6.1.1.21	8	9	histidine-dependent ATP-diphosphate exchange	369	
6.1.1.21	8.1	-	assay at	653611