Abstract
Our previous findings suggest that the activation of the rat intronless myc gene provides a selective advantage in tumor suppression through apoptosis induction. In the present study, to examine whether intronless myc gene acting as an apoptosis inducer is evolutionarily conserved in mammalian cells, we isolated the mouse intronless myc gene and characterized it. A sequence analysis demonstrated that mouse intronless myc gene, ms-myc, has a linearly opened translatable frame consisting of 1293 bp with 90% homology with that of rat s-myc. The chromosomal locus of ms-myc was identified on chromosome 19B by a fluorescent in situ hybridization (FISH) analysis. Gene transfection experiments showed that the transient overexpression of ms-Myc with transactivation activity effectively induces cell death in a wild-type p53-independent manner. In addition, cells stably expressing transfected ms- myc became more susceptible to apoptosis induced by genotoxic stress such as UV-irradiation and hydrogen peroxide compared with untransfected control cells. These observations suggest that the rodents commonly contain an s- myc-type of intronless myc gene with apoptosis-inducing activity.
| Original language | English |
|---|---|
| Pages (from-to) | 273-283 |
| Number of pages | 11 |
| Journal | Gene |
| Volume | 226 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1999 Jan 21 |
| Externally published | Yes |
Fingerprint
Keywords
- FISH analysis
- Molecular evolution
- Myc Family gene
- Programmed cell death
- Transactivation factor
ASJC Scopus subject areas
- Genetics
Cite this
Molecular cloning and chromosomal mapping of mouse intronless myc gene acting as a potent apoptosis inducer. / Sugiyama, Akinori; Noguchi, Kohji; Kitanaka, Chifumi; Katou, Naoko; Tashiro, Fumio; Ono, Takeo; Yoshida, Michihiro C.; Kuchino, Yoshiyuki.
In: Gene, Vol. 226, No. 2, 21.01.1999, p. 273-283.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Molecular cloning and chromosomal mapping of mouse intronless myc gene acting as a potent apoptosis inducer
AU - Sugiyama, Akinori
AU - Noguchi, Kohji
AU - Kitanaka, Chifumi
AU - Katou, Naoko
AU - Tashiro, Fumio
AU - Ono, Takeo
AU - Yoshida, Michihiro C.
AU - Kuchino, Yoshiyuki
PY - 1999/1/21
Y1 - 1999/1/21
N2 - Our previous findings suggest that the activation of the rat intronless myc gene provides a selective advantage in tumor suppression through apoptosis induction. In the present study, to examine whether intronless myc gene acting as an apoptosis inducer is evolutionarily conserved in mammalian cells, we isolated the mouse intronless myc gene and characterized it. A sequence analysis demonstrated that mouse intronless myc gene, ms-myc, has a linearly opened translatable frame consisting of 1293 bp with 90% homology with that of rat s-myc. The chromosomal locus of ms-myc was identified on chromosome 19B by a fluorescent in situ hybridization (FISH) analysis. Gene transfection experiments showed that the transient overexpression of ms-Myc with transactivation activity effectively induces cell death in a wild-type p53-independent manner. In addition, cells stably expressing transfected ms- myc became more susceptible to apoptosis induced by genotoxic stress such as UV-irradiation and hydrogen peroxide compared with untransfected control cells. These observations suggest that the rodents commonly contain an s- myc-type of intronless myc gene with apoptosis-inducing activity.
AB - Our previous findings suggest that the activation of the rat intronless myc gene provides a selective advantage in tumor suppression through apoptosis induction. In the present study, to examine whether intronless myc gene acting as an apoptosis inducer is evolutionarily conserved in mammalian cells, we isolated the mouse intronless myc gene and characterized it. A sequence analysis demonstrated that mouse intronless myc gene, ms-myc, has a linearly opened translatable frame consisting of 1293 bp with 90% homology with that of rat s-myc. The chromosomal locus of ms-myc was identified on chromosome 19B by a fluorescent in situ hybridization (FISH) analysis. Gene transfection experiments showed that the transient overexpression of ms-Myc with transactivation activity effectively induces cell death in a wild-type p53-independent manner. In addition, cells stably expressing transfected ms- myc became more susceptible to apoptosis induced by genotoxic stress such as UV-irradiation and hydrogen peroxide compared with untransfected control cells. These observations suggest that the rodents commonly contain an s- myc-type of intronless myc gene with apoptosis-inducing activity.
KW - FISH analysis
KW - Molecular evolution
KW - Myc Family gene
KW - Programmed cell death
KW - Transactivation factor
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UR - http://www.scopus.com/inward/citedby.url?scp=0033590617&partnerID=8YFLogxK
U2 - 10.1016/S0378-1119(98)00547-2
DO - 10.1016/S0378-1119(98)00547-2
M3 - Article
C2 - 9931502
AN - SCOPUS:0033590617
VL - 226
SP - 273
EP - 283
JO - Gene
JF - Gene
SN - 0378-1119
IS - 2
ER -