| RRC ID |
21415
|
| 著者 |
Shigematsu M, Ogawa T, Kitamoto HK, Hidaka M, Masaki H.
|
| タイトル |
Specific phase arrest of cell cycle restores cell viability against tRNA cleavage by killer toxin.
|
| ジャーナル |
Biochem Biophys Res Commun
|
| Abstract |
Zymocin and PaT are killer toxins that induce cell cycle arrest of sensitive yeast cells in G1 and S phase, respectively. Recent studies have revealed that these two toxins cleave specific tRNAs, indicating that the cell growth impairment is due to the tRNA cleavage. Additionally, we have previously shown that the active domain of colicin D (D-CRD), which also cleaves specific Escherichia coli tRNAs, statically impairs growth when expressed in yeast cells. To verify that phase-specific cell cycle arrest is also induced by the expression of D-CRD, D-CRD and the subunits of zymocin and PaT that have tRNA cleaving activity were expressed in yeast cells and cell cycle status was analyzed. Our results indicate that phase-specific arrest does not commonly occur by tRNA cleavage, and it saves the cell viability. Furthermore, the extent of protein synthesis impairment may determine the phase specificity of cell cycle arrest.
|
| 巻・号 |
420(4)
|
| ページ |
750-4
|
| 公開日 |
2012-4-20
|
| DOI |
10.1016/j.bbrc.2012.03.061
|
| PII |
S0006-291X(12)00508-6
|
| PMID |
22450321
|
| MeSH |
Cell Cycle Checkpoints / drug effects*
Cell Survival / drug effects
G1 Phase / drug effects
G1 Phase / genetics
Killer Factors, Yeast / pharmacology*
Protein Biosynthesis / drug effects
RNA Cleavage / drug effects*
RNA, Transfer / chemistry*
Saccharomyces cerevisiae / cytology
Saccharomyces cerevisiae / drug effects
Transcription, Genetic
|
| IF |
2.985
|
| 引用数 |
4
|
|
WOS 分野
|
BIOPHYSICS
BIOCHEMISTRY & MOLECULAR BIOLOGY
|
| リソース情報 |
| 一般微生物 |
JCM 22014 |
