Nucleic acid unwinding is an essential step in many ... coli involved in repair, function as monomers (PcrA; D. B. Wigley) or as dimers (Rep or UvrD; T. M. Lohman, Washington University).

which are themselves made up of smaller chemical units called monomers. Examples of polymers include proteins, cellulose, and nucleic acids. The 2D mechanically interlocked material is a polymer ...