DNA sequences of the same length containing genes in the same linear order, but starting and ending at different positions, as in a circle. For example, the genes ABCDEFG can be circularly permuted to give BCDEFGA, CDEFGAB, DEFGABC, and so forth. In T4 DNA, each phage contains a different cyclically permuted sequence that is also terminally redundant. Cyclic permutation is a property of a population of phage DNA molecules, whereas terminal redundancy is a property of an individual phage DNA molecule. See headful mechanism, terminal redundancy.
Subjects: Genetics and Genomics.