Viral RNA replication

Viral RNA replication refers to the process by which RNA viruses copy their RNA genomes within a host cell. This process relies on enzyme complexes such as the RNA-dependent RNA polymerase (RdRp) for most RNA viruses, or reverse transcriptase for retroviruses[1][2]. During the replication cycle, viral RNA serves as a template for the synthesis of additional genomes (progeny RNA) and for mRNAs required for protein synthesis. The replicase complex, comprising viral proteins such as RdRp, helicases, and sometimes host factors, orchestrates the copying and processing of viral RNA[2][3]. Because this process is essential and virus-specific, several antiviral drugs target the key enzymes (e.g., RdRp), thus blocking viral proliferation. However, "Viral RNA replication" itself is a mechanistic step, not a discrete druggable biomolecule[1][2][4]. Because "Viral RNA replication" is a process not a protein, enzyme, or receptor, it is not a canonical therapeutic target—drugs inhibit specific enzymes involved (such as RdRp), not the process as a whole[2][3]. The proper structured target would be the main viral enzyme (e.g., "RNA-dependent RNA polymerase") for a family or species of interest.

Other names

viral genome replicationRNA virus replicationRNA synthesis (viral)genome replication (virus)

Inhibition of RNA-dependent RNA polymerase (blocks synthesis of viral RNA) Incorporation of nucleotide analogs to induce chain termination of RNA synthesis