Abstract
In this study, we set out to investigate the role of Fanconi anemia complementation group D2 protein (FANCD2) in developmental stage-specific DNA damage responses in Caenorhabditis elegans. A mutant C. elegans strain containing a deletion in the gene encoding the FANCD2 homolog, FCD-2, exhibited egg-laying defects, precocious oogenesis, and partial defects in fertilization. The mutant strain also had a lower hatching rate than the wild-type after γ-irradiation of embryos, but not after the irradiation of pachytene stage germ cells. This mutation sensitized pachytene stage germ cells to the genotoxic effects of photoactivated psoralen, as seen by a greatly reduced hatching rate and increased chromosomal aberrations. This mutation also enhanced physiological M-phase arrest and apoptosis. Taken together, our data reveal that the C. elegans FANCD2 homolog participates in the repair of spontaneous DNA damage and DNA crosslinks, not only in proliferating cells but also in pachytene stage cells, and it may have an additional role in double-stranded DNA break repair during embryogenesis.
| Original language | English |
|---|---|
| Pages (from-to) | 479-485 |
| Number of pages | 7 |
| Journal | Biochemical and Biophysical Research Communications |
| Volume | 352 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2007 Jan 12 |
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All Science Journal Classification (ASJC) codes
- Biophysics
- Biochemistry
- Molecular Biology
- Cell Biology
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Developmental stage- and DNA damage-specific functions of C. elegans FANCD2. / Lee, Kyong Yun; Yang, Insil; Park, Jung Eun; Baek, Ok Ryun; Chung, Kee Yang; Koo, Hyeon Sook.
In: Biochemical and Biophysical Research Communications, Vol. 352, No. 2, 12.01.2007, p. 479-485.Research output: Contribution to journal › Article
TY - JOUR
T1 - Developmental stage- and DNA damage-specific functions of C. elegans FANCD2
AU - Lee, Kyong Yun
AU - Yang, Insil
AU - Park, Jung Eun
AU - Baek, Ok Ryun
AU - Chung, Kee Yang
AU - Koo, Hyeon Sook
PY - 2007/1/12
Y1 - 2007/1/12
N2 - In this study, we set out to investigate the role of Fanconi anemia complementation group D2 protein (FANCD2) in developmental stage-specific DNA damage responses in Caenorhabditis elegans. A mutant C. elegans strain containing a deletion in the gene encoding the FANCD2 homolog, FCD-2, exhibited egg-laying defects, precocious oogenesis, and partial defects in fertilization. The mutant strain also had a lower hatching rate than the wild-type after γ-irradiation of embryos, but not after the irradiation of pachytene stage germ cells. This mutation sensitized pachytene stage germ cells to the genotoxic effects of photoactivated psoralen, as seen by a greatly reduced hatching rate and increased chromosomal aberrations. This mutation also enhanced physiological M-phase arrest and apoptosis. Taken together, our data reveal that the C. elegans FANCD2 homolog participates in the repair of spontaneous DNA damage and DNA crosslinks, not only in proliferating cells but also in pachytene stage cells, and it may have an additional role in double-stranded DNA break repair during embryogenesis.
AB - In this study, we set out to investigate the role of Fanconi anemia complementation group D2 protein (FANCD2) in developmental stage-specific DNA damage responses in Caenorhabditis elegans. A mutant C. elegans strain containing a deletion in the gene encoding the FANCD2 homolog, FCD-2, exhibited egg-laying defects, precocious oogenesis, and partial defects in fertilization. The mutant strain also had a lower hatching rate than the wild-type after γ-irradiation of embryos, but not after the irradiation of pachytene stage germ cells. This mutation sensitized pachytene stage germ cells to the genotoxic effects of photoactivated psoralen, as seen by a greatly reduced hatching rate and increased chromosomal aberrations. This mutation also enhanced physiological M-phase arrest and apoptosis. Taken together, our data reveal that the C. elegans FANCD2 homolog participates in the repair of spontaneous DNA damage and DNA crosslinks, not only in proliferating cells but also in pachytene stage cells, and it may have an additional role in double-stranded DNA break repair during embryogenesis.
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UR - http://www.scopus.com/inward/citedby.url?scp=33751506586&partnerID=8YFLogxK
U2 - 10.1016/j.bbrc.2006.11.039
DO - 10.1016/j.bbrc.2006.11.039
M3 - Article
C2 - 17126808
AN - SCOPUS:33751506586
VL - 352
SP - 479
EP - 485
JO - Biochemical and Biophysical Research Communications
JF - Biochemical and Biophysical Research Communications
SN - 0006-291X
IS - 2
ER -