Recombinant Human TOP1 Protein (Baculovirus)，His & Myc

TOP1, or Topoisomerase I, is a critical enzyme involved in DNA replication, transcription, and repair processes. This enzyme alleviates the torsional strain that builds up ahead of the replication fork by introducing transient single-strand breaks in the DNA helix. The study of TOP1 has gained significant attention due to its role in cellular processes and its implications in cancer biology. Dysregulation or overexpression of TOP1 is often associated with various malignancies, making it a promising target for cancer therapies. Additionally, inhibitors of TOP1, such as camptothecin and its derivatives, have shown potent antitumor activity, thereby highlighting the importance of this protein in drug development. Recent research has focused on elucidating the detailed mechanisms of TOP1 action, its interactions with nucleic acids, and the molecular basis of resistance to TOP1 inhibitors. Understanding these aspects is crucial for designing more effective therapeutic strategies and overcoming resistance mechanisms. Furthermore, advancements in structural biology techniques, including X-ray crystallography and cryo-electron microscopy, have provided valuable insights into the conformational states of TOP1, paving the way for the rational design of novel inhibitors. The ongoing exploration of TOP1 remains essential for enhancing our understanding of its biological functions and improving the efficacy of cancer therapies targeting this pivotal enzyme.