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Title 

The n-SET domain of Set1 regulates H2B ubiquitylation-dependent H3K4 methylation

Authors 

J KimJung Ae KimR K McGintyU T T NguyenT W MuirC D AllisR G Roeder

Publisher 

Elsevier (Cell Press)

Issue Date 

2013

Citation 

Molecular Cell, vol. 49, no. 6, pp. 1121-1133

Abstract 

Past studies have documented a crosstalk between H2B ubiquitylation (H2Bub) and H3K4 methylation, but little (if any) direct evidence exists explaining the mechanism underlying H2Bub-dependent H3K4 methylation on chromatin templates. Here, we took advantage of an in vitro histone methyltransferase assay employing a reconstituted yeast Set1 complex (ySet1C) and a recombinant chromatin template containing fully ubiquitylated H2B to gain valuable insights. Combined with genetic analyses, we demonstrate that the n-SET domain within Set1, but not Swd2, is essential for H2Bub-dependent H3K4 methylation. Spp1, a homolog of human CFP1, is conditionally involved in this crosstalk. Our findings extend to the human Set1 complex, underscoring the conserved nature of this disease-relevant crosstalk pathway. As not all members of the H3K4 methyltransferase family contain n-SET domains, our studies draw attention to the n-SET domain as a predictor of an H2B ubiquitylation-sensing mechanism that leads to downstream H3K4 methylation.

ISSN 

1097-2765

Link 

http://dx.doi.org/10.1016/j.molcel.2013.01.034

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2017-04-19


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