Title |
Saccharomyces cerevisiae의 Swd2와 Set1의 결합이 Swd2의 이중적인 기능에 미치는 영향 |
Author |
박신애1,2 and 이정신1,2* |
Address |
1강원대학교 분자생명과학과, 2강원대학교 크리티컬존선도연구실 |
Bibliography |
Korean Journal of Microbiology, 53(4),286-291, 2017 |
DOI |
https://doi.org/10.7845/kjm.2017.7076
|
Key Words |
Saccharomyces cerevisiae, CPF complex, histone
H3K4 methylation, Set1, Swd2 |
Abstract |
In eukaryotic cells, histone modification is an important
mechanism to regulate the chromatin structure. The methylation
of the fourth lysine on histone H3 (H3K4) by Set1
complex is one of the various well-known histone modifications.
Set1 complex has seven subunits including Swd2, which
is known to be important for H2B ubiquitination dependent on
H3K4 methylation. Swd2 was reported to regulate Set1’s
methyltransferase activity by binding to near RNA recognition
motif (RRM) domain of Set1 and to act as a component of CPF
(Cleavage and Polyadenylation Factors) complex involved in
RNA 3’ end processing. According to the recent reports, two
functions of Swd2 work independently of each other and the
lethality of Swd2 knockout strain was known to be caused by
its function as a component of CPF complex. In this study, we
found that Swd2 could influence the Set1’s stability as well as
histone methyltransferase activity through the association with
RRM domain of Set1. Also, we found that △swd2 mutant
bearing truncated-Set1, which cannot interact with Swd2, lost
its lethality and grew normally. These results suggest that the
dual functions of Swd2 in H3K4 methylation and RNA 3’ end
processing are not independent in Saccharomyces cerevisiae. |
Download PDF |
07_[286-291]17-076.pdf |