Protein synthesis pathways

"Protein synthesis pathways" refer collectively to the complex series of biochemical processes that produce proteins from genetic information encoded in DNA. This process involves two main stages: **Transcription:** DNA is transcribed into messenger RNA (mRNA) by RNA polymerase enzymes within the nucleus. The resulting mRNA carries genetic instructions from DNA out into the cytoplasm[1][7]. **Translation:** Ribosomes read the sequence of codons on mRNA and assemble amino acids into polypeptide chains using transfer RNAs (tRNAs) as adaptors. This process occurs in three phases—initiation, elongation, and termination—and relies on numerous accessory factors and enzymatic activities such as peptidyl transferase[2][4][6]. After translation, polypeptides fold into functional three-dimensional structures and may undergo post-translational modifications that affect their activity or localization. Protein synthesis is fundamental for cell survival and function. Disruptions or mutations affecting these pathways can lead to diseases including cancer and neurodegenerative disorders due to errors in gene expression or accumulation of misfolded proteins[1]. While many drugs target individual molecules within these pathways—such as antibiotics targeting bacterial ribosomes or rapamycin inhibiting mTOR signaling—the term "protein synthesis pathways" itself does not denote a single druggable entity but rather an essential biological system composed of many potential therapeutic targets.

Other names

Protein biosynthesisProtein translation pathwaysProtein synthesis mechanisms