A small UTX stabilization domain of Trr is conserved within mammalian MLL3-4/COMPASS and is sufficient to rescue loss of viability in null animals.
A small UTX stabilization domain of Trr is conserved within mammalian MLL3-4/COMPASS and is sufficient to rescue loss of viability in null animals.
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DOI:
10.1101/gad.339762.120
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发表时间:
2020-11-01
影响因子:
10.5
通讯作者:
Shilatifard A
中科院分区:
文献类型:
--
作者:
Rickels R;Wang L;Iwanaszko M;Ozark PA;Morgan MA;Piunti A;Khalatyan N;Soliman SHA;Rendleman EJ;Savas JN;Smith ER;Shilatifard A
In this study, Rickel et al. identified essential histone methylatransferase-independent functions of Trr, used a screen to identify a minimal Trr domain sufficient to rescue Trr-null lethality, and demonstrated that this domain binds and stabilizes Utx in vivo. Their findings show that COMPASS-dependent UTX stabilization is an essential noncatalytic function of Trr/MLL3/MLL4, suggesting that stabilizing UTX could be a therapeutic strategy for cancers with MLL3/4 loss-of-function mutations. Catalytic-inactivating mutations within the Drosophila enhancer H3K4 mono-methyltransferase Trr and its mammalian homologs, MLL3/4, cause only minor changes in gene expression compared with whole-gene deletions for these COMPASS members. To identify essential histone methyltransferase-independent functions of Trr, we screened to identify a minimal Trr domain sufficient to rescue Trr-null lethality and demonstrate that this domain binds and stabilizes Utx in vivo. Using the homologous MLL3/MLL4 human sequences, we mapped a short ∼80-amino-acid UTX stabilization domain (USD) that promotes UTX stability in the absence of the rest of MLL3/4. Nuclear UTX stability is enhanced when the USD is fused with the MLL4 HMG-box. Thus, COMPASS-dependent UTX stabilization is an essential noncatalytic function of Trr/MLL3/MLL4, suggesting that stabilizing UTX could be a therapeutic strategy for cancers with MLL3/4 loss-of-function mutations.
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影响因子:
10.5
作者:
Morgan MA;Shilatifard A
通讯作者:
Shilatifard A
影响因子:
30.8
作者:
通讯作者:
--
DOI:
10.1093/bioinformatics/btu638
发表时间:
2015-01-15
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Anders S;Pyl PT;Huber W
通讯作者:
Huber W
影响因子:
30.8
作者:
Rickels R;Herz HM;Sze CC;Cao K;Morgan MA;Collings CK;Gause M;Takahashi YH;Wang L;Rendleman EJ;Marshall SA;Krueger A;Bartom ET;Piunti A;Smith ER;Abshiru NA;Kelleher NL;Dorsett D;Shilatifard A
通讯作者:
Shilatifard A
影响因子:
3.3
作者:
Copur Ö;Müller J
通讯作者:
Müller J