DNA synthesis or mitosis machinery

“DNA synthesis or mitosis machinery” describes the collective set of proteins and macromolecular complexes required for accurate DNA replication (S phase) and subsequent chromosome segregation during mitosis. For DNA synthesis, key components include DNA polymerases, helicases, primases, topoisomerases, ligases, and single-strand DNA-binding proteins, which together form the replication fork and replisome complexes[1][2][6][7]. For mitosis, the machinery encompasses the structures and proteins that build and regulate the mitotic spindle (e.g., tubulins, centrosomes, microtubule-associated proteins), kinetochores, cohesins, and regulatory proteins such as cyclin-dependent kinases[3][4][5]. Aberrant function of these complexes is critical in cancer and other proliferative diseases, making individual components (but not the entire "machinery" as a unit) key targets for anticancer chemotherapy. The designation "DNA synthesis or mitosis machinery" is overly broad and does not correspond to a single gene, protein, or canonical drug target, but rather to a system of interacting components that are targeted individually in therapy.

Other names

DNA replication machineryDNA synthesis enzymesmitotic machineryreplisomemitotic spindle apparatus

Inhibition of DNA polymerase activity; Inhibition of topoisomerase-mediated DNA winding/unwinding; Disruption of microtubule polymerization/depolymerization; Inhibition of cell cycle regulators (e.g., CDKs); Interference with mitotic spindle function