関連する実験動画

Updated: Jul 19, 2026

Laser Microirradiation to Study In Vivo Cellular Responses to Simple and Complex DNA Damage
10:44

Laser Microirradiation to Study In Vivo Cellular Responses to Simple and Complex DNA Damage

Published on: January 31, 2018

生体細胞におけるDNA修復エンドヌクレアゼERCC1/XPFの作用

A B Houtsmuller1, S Rademakers, A L Nigg

  • 1Department of Pathology (Josephine Nefkens Institute, Erasmus University, Post Office Box 1738, 3000 DR Rotterdam, Netherlands.

Science (New York, N.Y.)
|May 13, 1999
PubMed
まとめ

ヌクレオチド切除修復 (NER) 複合体ERCC1/XPFは,DNA損傷まで自由に移動し,そこで一時的に修復を停止します. これは,NER因子が損傷部位に集まって,プロセッシブではなく分散的に修復することを示唆しています.

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Nucleotide Excision Repair

Overview
Base Excision Repair01:54

Base Excision Repair

One of the common DNA damages is the chemical alteration of single bases by alkylation, oxidation, or deamination. The altered bases cause mispairing and strand breakage during replication. This type of damage causes minimal change to the DNA double helix structure and can be repaired by the base excision repair (BER) pathways. BER corrects damaged DNA sequences by removing the damaged base and restoring the original base sequence using the complementary strand as a template.
The first step of...
Long-patch Base Excision Repair01:02

Long-patch Base Excision Repair

Since the discovery of the two BER pathways, there has been a debate about how a cell chooses one pathway over the other and the factors determining this selection. Numerous in vitro experiments have pointed out multiple determinants for the sub-pathway selection. These are:
Nucleotide Excision Repair01:08

Nucleotide Excision Repair

Overview
Base Excision Repair01:54

Base Excision Repair

One of the common DNA damages is the chemical alteration of single bases by alkylation, oxidation, or deamination. The altered bases cause mispairing and strand breakage during replication. This type of damage causes minimal change to the DNA double helix structure and can be repaired by the base excision repair (BER) pathways. BER corrects damaged DNA sequences by removing the damaged base and restoring the original base sequence using the complementary strand as a template.
The first step of...
Nucleotide Excision Repair01:38

Nucleotide Excision Repair

DNA Distortion and Damage
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...