Ribosome (protein biosynthesis machinery)

The term "Protein biosynthesis machinery via provision of essential amino acids" does not refer to a single molecular entity or therapeutic target, but rather describes a complex, multi-component system involved in the synthesis of proteins within cells, for which essential amino acids must be supplied externally. The core components of the protein biosynthesis machinery are ribosomes, transfer RNAs (tRNAs), messenger RNA (mRNA), and a large number of associated enzymatic factors (such as aminoacyl-tRNA synthetases and translation initiation, elongation, and termination factors)[5][9]. Essential amino acids must be provided by external sources (diet in mammals), as they cannot be synthesized de novo by human or other metazoan cells[1][7][8]. Among cellular signaling pathways, the mammalian target of rapamycin complex 1 (mTORC1) senses intracellular amino acid availability and adjusts the biosynthetic capacity accordingly[1]. Provision of essential amino acids is required for ribosomal translation; deficiency rapidly impairs protein synthesis, cell growth, and survival[7][1]. However, "protein biosynthesis machinery via provision of essential amino acids" is not a correct name for a single target and is not used in scientific or clinical literature to indicate a discrete molecule, receptor, or drug target.

Other names

Protein synthesis machineryTranslational machineryRibosomal machineryTranslation apparatus