Unknown host factor involved in adenovirus replication

Adenovirus replication is a complex process that relies heavily on the subversion of host cellular machinery. While the core viral replication proteins (DNA polymerase, pre-terminal protein, and DNA-binding protein) are well-characterized, they require several host factors to initiate and sustain efficient DNA synthesis. Historically, Nuclear Factor I (NFI), Nuclear Factor III (Oct-1), and Topoisomerase I were identified as essential for in vitro replication. Recent research has expanded this list to include factors like High Mobility Group Box 1 (HMGB1), which associates with viral replication compartments and promotes DNA synthesis, and the FACT complex (SSRP1/SUPT16H), which facilitates transcription through viral chromatin. Additionally, the virus must counteract host restriction factors such as SAMHD1 and the Mre11-Rad50-Nbs1 (MRN) complex, often through proteasomal degradation mediated by viral early proteins like E1B-55K and E4orf6. Understanding these host-virus interactions is critical for developing novel antiviral therapies and improving adenovirus-based gene delivery vectors.

Other names

Adenovirus host dependency factorAdenovirus proviral factorAdenovirus replication compartment component

Inhibition of viral DNA polymerase activity; disruption of host-virus protein-protein interactions; prevention of host restriction factor degradation.