Fragments d’Okazaki
- Fragments d’Okazaki
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Fragment d'Okazaki
Fragment d’Okazaki est un terme utilisé en biologie, dans l'étude des chromosomes. Il fut découvert en 1968 par Reiji et Tsuneko Okazaki ainsi que leurs collègues en étudiant la réplication de la bactérie Escherichia Coli.
Le brin « retardé » est synthétisé par petits fragments (d’environ 10 paires de bases) : les fragments d’Okazaki.
L’ADN polymérase pour effectuer la synthèse d’ADN nécessite une amorce (petit fragment d’ADN ou d’ARN). Cette amorce ARN est amenée par l'enzyme ARN Primase qui est une enzyme ARN polymérase ADN dépendante.
Liens externes
McGraw Hill Higher Education article discussing DNA synthesis
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Contenu soumis à la licence CC-BY-SA. Source : Article Fragments d’Okazaki de Wikipédia en français (auteurs)
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Okazaki — may refer to: People named Okazaki Chieko N. Okazaki (born 1926), former counselor in the General Relief Society Presidency of The Church of Jesus Christ of Latter day Saints Dai Okazaki (AKA Smelly , born 1971), a Japanese comedic performer and… … Wikipedia
Okazaki fragments — DNA replication Okazaki fragments are short molecules of single stranded DNA that are formed on the lagging strand during DNA replication. They are between 1,000 to 2,000 nucleotides long in Escherichia coli and are between 100 to 200 nucleotides … Wikipedia
Okazaki fragment — An Okazaki fragment is a relatively short fragment of DNA (with an RNA primer at the 5 terminus) created on the lagging strand during DNA replication. The lengths of Okazaki fragments are between 1,000 to 2,000 nucleotides long in E. coli and are … Wikipedia
Okazaki fragments — Okazaki fragments. См. фрагменты Оказаки. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) … Молекулярная биология и генетика. Толковый словарь.
Okazaki fragments — Short fragments of newly synthesised DNA strands produced during DNA replication. All the known DNA polymerases can only synthesis DNA in one direction, the 5 to 3 direction. However as the strands separate, replication forks will be moving along … Dictionary of molecular biology
Okazaki-Stücke — DNA Replikation. a: Elternstränge, b: Leitstrang, c: Folgestrang, d: Replikationsgabel, e: Primer, f: Okazaki Fragment Okazaki Fragment nennt man in der Molekularbiologie einen während der DNA Replikation entstehenden kurzen Abschnitt des… … Deutsch Wikipedia
Okazaki-Fragment — DNA Replikation. a: Elternstränge, b: Leitstrang, c: Folgestrang, d: Replikationsgabel, e: Primer, f: Okazaki Fragment Okazaki Fragment nennt man in der Molekularbiologie einen während der DNA Replikation… … Deutsch Wikipedia
Okazaki fragments — Oka·za·ki fragments (o kah zahґke) [Reiji Okazaki, Japanese molecular biologist, 1930–1975] see under fragment … Medical dictionary
Okazaki fragments — the short fragments of DNA, each consisting of an RNA primer and a short DNA chain and ranging in length from 100–200 nucleotides in eukaryotes to 1000–2000 nucleotides in prokaryotes, formed in synthesis of the lagging strand during DNA… … Medical dictionary
Okazaki fragments — small discontinuous strands of deoxyribonucleic acid (DNA) produced during DNA synthesis (named for Reiji and Funeko Okazaki) … Eponyms, nicknames, and geographical games
Réplication de l'ADN :
