Nucleic acid catenated

A molecular entity consisting of two or more polymeric rings interlinked together but not covalently bonded to each other. Mitochondrial DNA are known to form catenated structures consisting of two interlinked nucleic acid circles (i.e., a [2]catenane). 

In this chapter, attention is focused on novel developments for the production of pristine nucleic acid architectures and DNA-polymer hybrid structures, employing the methods, techniques, and materials acquired from molecular biology. However, while the details of linear DNA block copolymers (DBCs), DNA networks, and catenated DNA structures will be included, the preparation and modification of regular DNA nanostructures, using molecular biology methods and enzymes, will not be discussed as an excellent summary of these procedures is available elsewhere [15]. 

Plasmids and Catenated Nucleic Acid Architectures from Circular DNA Molecules... 

Figure 35.S Mechanically bonded nucleic acid architectures consisting of ss- and ds circular DMAs, (a) Strand invasion of the ss DNA (blue) at an A+T-rich sequence of supercoiled ds plasmid DNA. (Adapted from Ref. [50]) (b) Catenated DNA structure of a ds plasmid DNA and an ss circular DNA. (Adapted from Ref [51]) (c) Dumbbell-shaped structure consisting of...

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