overwinding

перетяжка
закручивание одной спирали молекулы ДНК вокруг другой, образуя сверхспираль (спираль второго порядка при укладке молекулы ДНК)

English-Russian Biotechnology Glossary. . 2007.

Смотреть что такое "overwinding" в других словарях:

  • Mainspring — For the 2007 novel by Jay Lake, see Mainspring (novel). An uncoiled modern watch mainspring …   Wikipedia

  • Topoisomerase — Topoisomerases (type I: EC 5.99.1.2, type II: EC 5.99.1.3) are enzymes that regulate the overwinding or underwinding of DNA. The winding problem of DNA arises due to the intertwined nature of its double helical structure. For example, during DNA… …   Wikipedia

  • Geneva drive — Animation showing a six position Geneva Drive in operation The Geneva drive or Maltese cross is a gear mechanism that translates a continuous rotation into an intermittent rotary motion. The rotating drive wheel has a pin that reaches into a slot …   Wikipedia

  • Strings (music) — A string is the vibrating element that is the source of vibration in string instruments, such as the guitar, harp, piano, and members of the violin family. They are lengths of a flexible material kept under tension so that they may freely vibrate …   Wikipedia

  • Cox's timepiece — is a clock developed in the 1760s by James Cox. It was developed in collaboration with John Joseph Merlin (with whom Cox also worked on developing automata). Cox claimed that his design was a true perpetual motion machine, but as the device is… …   Wikipedia

  • Automatic watch — An automatic or self winding watch is a mechanical watch, whose mainspring is wound automatically by the natural motion of the wearer s arm, to make it unnecessary to manually wind the watch. Most mechanical watches sold today are self winding.… …   Wikipedia

  • Stratton's Independence Mine and Mill — Infobox nrhp name =Stratton s Independence Mine and Mill nrhp type = caption =Image from the George H. Stone Collection of Colorado geological features and views, Special Collections, Tutt Library, Colorado College. location = Junction of… …   Wikipedia

  • overwind — /oh veuhr wuynd /, v.t., overwound, overwinding. to wind beyond the proper limit; wind too far: He must have overwound his watch. [1675 85; OVER + WIND2] * * * …   Universalium

  • Geneva mechanism — ▪ device also called  Geneva Stop,         one of the most commonly used devices for producing intermittent rotary motion, characterized by alternate periods of motion and rest with no reversal in direction. It is also used for indexing (i.e.,… …   Universalium

  • supercoil — su·per·coil sü pər .kȯi(ə)l n a double helix (as of DNA) that has undergone additional twisting in the same direction as or in the opposite direction from the turns in the original helix called also superhelix supercoil vb * * * su·per·coil… …   Medical dictionary

  • Hubendschalter — (m), Notendschalter (m) für Kran Hubwerke eng overwinding cut out (cranes) …   Arbeitssicherheit und Gesundheitsschutz Glossar

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