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Replication in Prokaryotes

Replication in Prokaryotes

Replication in Eukaryotes

Replication in Eukaryotes

Replication in Eukaryotes

Replication in Eukaryotes

No description available

Replication in Eukaryotes

Replication in Eukaryotes

In eukaryotic cells, DNA replication is highly conserved and tightly regulated. Multiple linear chromosomes must be duplicated with high fidelity before cell division, so there are many proteins that fulfill specialized roles in the replication process. Replication occurs in three phases: initiation, elongation, and termination, and ends with two complete sets of chromosomes in the nucleus.
Many Proteins Orchestrate Replication at the Origin
Eukaryotic replication follows many of the same...

Centrioles and Centrosomes

Centrioles and Centrosomes

Most animal cells comprise a pair of centrioles together called a centrosome. The cell duplicates its centrosome and contains two centrosomes side-by-side, which begin to move apart during the prophase. As the centrosomes migrate to two different sides of the cell, microtubules start extending from each centrosome toward the other end. The mitotic spindle is composed of the centrosomes and their emerging microtubules.
Near the end of the prophase, also called late prophase or...

Replication in Eukaryotes

Replication in Eukaryotes

No description available

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Updated: Apr 2, 2026

Visualization of DNA Replication in the Vertebrate Model System DT40 using the DNA Fiber Technique

Visualization of DNA Replication in the Vertebrate Model System DT40 using the DNA Fiber Technique

Published on: October 27, 2011

動物細胞の複製単位をマッピングする.

S Handeli¹, A Klar, M Meuth

¹Department of Cellular Biochemistry Hebrew University-Hadassah Medical School, Jerusalem, Israel.

|June 16, 1989

まとめ

この要約は機械生成です。

研究者らは,DNA複製の起源を in vivo で発見する方法を開発した. このテクニックは,中国ハムスターのDHFR遺伝子近くの起源とAPRTドメインの起源を特定し,DNA複製に関する理解を深めました.

さらに関連する動画

Chromosome Replicating Timing Combined with Fluorescent In situ Hybridization

Chromosome Replicating Timing Combined with Fluorescent In situ Hybridization

Published on: December 10, 2012

Genome-wide Determination of Mammalian Replication Timing by DNA Content Measurement

Genome-wide Determination of Mammalian Replication Timing by DNA Content Measurement

Published on: January 19, 2017

関連する実験動画

Last Updated: Apr 2, 2026

Visualization of DNA Replication in the Vertebrate Model System DT40 using the DNA Fiber Technique

Visualization of DNA Replication in the Vertebrate Model System DT40 using the DNA Fiber Technique

Published on: October 27, 2011

Chromosome Replicating Timing Combined with Fluorescent In situ Hybridization

Chromosome Replicating Timing Combined with Fluorescent In situ Hybridization

Published on: December 10, 2012

Genome-wide Determination of Mammalian Replication Timing by DNA Content Measurement

Genome-wide Determination of Mammalian Replication Timing by DNA Content Measurement

Published on: January 19, 2017

科学分野:

分子生物学は分子生物学である.
遺伝学遺伝学とは
ゲノミクスゲノミクスとは

背景:

DNA複製の起源を理解することは,細胞分裂とゲノムの安定性にとって極めて重要です.
複製の起源を in vivo で特定するための既存の方法には,限界があります.

研究の目的:

DNA複製のインビボ方向を測定するための一般化可能な方法を開発する.
特定のゲノム領域内の機能的な複製の起源と終末部位を特定する.

主な方法:

ゲノム領域をスキャンして双方向的な尾から尾への複製パターンを検出する技術を開発した.
複製マッピングと削除ミュータントを使用して,起源と終端サイトを正確に特定しました.
特定された起源の機能を遺伝子的に確認するために,トランスフェクションを採用した.

主要な成果:

中国ハムスターのDHFR遺伝子の下流にある2つの原産地の約位置を特定しました.
ヘッドツーヘッドの複製領域をマッピングし,動物の細胞複製のランドマークを定義する.
APRTドメインの機能的起源が,遠上流の位置で確認されました.

結論:

開発された方法論は,異なるゲノムロシで,in vivo DNA複製の起源を特定するのに有効です.
このアプローチは,動物細胞におけるDNA複製の開始と終了を研究するための強力なツールを提供します.
この発見は,ゲノム複製メカニズムとレギュレーションのより深い理解に貢献します.