학술논문
Mad2B forms a complex with Cdc20, Cdc27, Rev3 and Rev1 in response to cisplatin-induced DNA damage
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- 영문명
- 발행기관
- 대한생리학회-대한약리학회
- 저자명
- Ju Hwan Kim Rajnikant Patel
- 간행물 정보
- 『The Korean Journal of Physiology & Pharmacology』제27권 제5호, 427~436쪽, 전체 10쪽
- 주제분류
- 의약학 > 의학일반
- 파일형태
- 발행일자
- 2023.09.30
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국문 초록
영문 초록
Mitotic arrest deficient 2 like 2 (Mad2L2, also known as Mad2B), the human homologue of the yeast Rev7 protein, is a regulatory subunit of DNA poly-merase ζ that shares high sequence homology with Mad2, the mitotic checkpoint protein. Previously, we demonstrated the involvement of Mad2B in the cisplatin-induced DNA damage response. In this study, we extend our findings to show that Mad2B is recruited to sites of DNA damage in human cancer cells in response to cis-platin treatment. We found that in undamaged cells, Mad2B exists in a complex with Polζ-Rev1 and the APC/C subunit Cdc27. Following cisplatin-induced DNA damage, we observed an increase in the recruitment of Mad2B and Cdc20 (the activators of the APC/C), to the complex. The involvement of Mad2B-Cdc20-APC/C during DNA damage has not been reported before and suggests that the APC/C is activated fol-lowing cisplatin-induced DNA damage. Using an in vitro ubiquitination assay, our data confirmed Mad2B-dependent activation of APC/C in cisplatin-treated cells. Mad2B may act as an accelerator for APC/C activation during DNA damage response. Our data strongly suggest a role for Mad2B-APC/C-Cdc20 in the ubiquitination of proteins involved in the DNA damage response.
목차
INTRODUCTION
METHODS
RESULTS
DISCUSSION
FUNDING
ACKNOWLEDGEMENTS
CONFLICTS OF INTEREST
SUPPLEMENTARY MATERIALS
REFERENCES
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