論文 - 詳細
| RRC ID | 3211 |
|---|---|
| 著者 | Mizukoshi T, Tanaka T, Arai K, Kohda D, Masai H. |
| タイトル | A critical role of the 3' terminus of nascent DNA chains in recognition of stalled replication forks. |
| ジャーナル | J Biol Chem |
| Abstract |
Arrest of replication forks by various internal and external threats evokes a myriad of cellular reactions, collectively known as DNA replication checkpoint responses. In bacteria, PriA is essential for restoration of stalled replication forks and recombinational repair of double-stranded DNA breaks and is a candidate sensor protein that may recognize arrested forks. Here, we report that PriA protein specifically recognizes 3' termini of arrested nascent DNA chains at model stalled replication forks in vitro. Mutations in the putative "3' terminus binding pocket" present in the N-terminal segment of PriA result in reduced binding to stalled replication fork structures and loss of its biological functions. The results suggest a mechanism by which stalled replication forks are recognized by a sensor protein for checkpoint responses. |
| 巻・号 | 278(43) |
| ページ | 42234-9 |
| 公開日 | 2003-10-24 |
| DOI | 10.1074/jbc.C300285200 |
| PII | S0021-9258(20)82761-6 |
| PMID | 12917421 |
| MeSH | 3' Flanking Region / physiology* Adenosine Triphosphatases / genetics Adenosine Triphosphatases / metabolism Amino Acid Sequence Binding Sites / genetics DNA Damage DNA Helicases / genetics DNA Helicases / metabolism DNA Repair* DNA Replication* Escherichia coli / genetics Escherichia coli Proteins / genetics Escherichia coli Proteins / metabolism Mutation Nucleic Acid Conformation Sequence Alignment |
| IF | 4.238 |
| 引用数 | 39 |
| WOS 分野 | BIOCHEMISTRY & MOLECULAR BIOLOGY |
| リソース情報 | |
| 原核生物(大腸菌) | ME9132(AQ634) ME9477(AQ8851) |