Isoacceptor glycine tRNA species during bovine myocardium development

The isoacceptor patterns of glycyl-tRNAs from fetal bovine myocardium during development, and of adult cardiac muscle, have been studied by reverse-phase chromatography. 4 isospecies were detected and quantitative changes in their relative abundance were noted. Moreover, upon testing their efficiency in transferring glycine into polypeptides a differential utilization of the cognate tRNAs was observed.