This backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule. DNA and RNA are composed of nucleotides that are linked to one another in a chain ...
The superfamily 1 (SF1) and SF2 enzymes are non-hexameric enzymes possessing both helicase and single-stranded DNA (ssDNA) translocase activities, as well as the ability to displace proteins from DNA.