| 释义 |
supercoiling
supercoiling[′sü·pər‚kȯil·iŋ] (cell and molecular biology) Winding of the deoxyribonucleic acid duplex on itself so that it crosses its own axis; may be in the same (positive) direction as, or opposite (negative) direction to, the turns of the double helix. supercoiling
su·per·hel·ic·i·ty (sū'pĕr-hēl-is'i-tē), An attribute of native duplex DNA structure characterized by further twisting or coiling of the double helix. Synonym(s): supercoilingsupercoiling The secondary coiling of a DNA helix to form a coiled coil. In positive supercoiling, both strands of the double helix coil together in the same direction as the coiling of the strands. |