Ars2 Promotes proper replication-dependent histone mRNA 3' end formation

Joshua J. Gruber; Scott H. Olejniczak; Jeongsik Yong; Gaspare LaRocca; Gideon Dreyfuss; Craig B. Thompson

doi:10.1016/j.molcel.2011.12.020

Ars2 Promotes proper replication-dependent histone mRNA 3' end formation

Joshua J. Gruber, Scott H. Olejniczak, Jeongsik Yong, Gaspare LaRocca, Gideon Dreyfuss, Craig B. Thompson

Research output: Contribution to journal › Article › peer-review

68 Scopus citations

Abstract

Ars2 is a component of the nuclear cap-binding complex that contributes to microRNA biogenesis and is required for cellular proliferation. Here, weexpand on the repertoire of Ars2-dependent microRNAs and determine that Ars2 regulates a number of mRNAs, the largest defined subset of which code for histones. Histone mRNAs are unique among mammalian mRNAs because they are not normally polyadenylated but, rather, are cleaved following a 3' stem loop. A significant reduction in correctly processed histone mRNAs was observed following Ars2 depletion, concurrent with an increase in polyadenylated histone transcripts. Furthermore, Ars2 physically associated with histone mRNAs and the noncoding RNA 7SK. Knockdown of 7SK led to an enhanced ratio of cleaved to polyadenylated histone transcripts, an effect dependent on Ars2. Together, the data demonstrate that Ars2 contributes to histone mRNA 3' end formation and expression and these functional properties of Ars2 are negatively regulated by interaction with 7SK RNA.

Original language	English (US)
Pages (from-to)	87-98
Number of pages	12
Journal	Molecular cell
Volume	45
Issue number	1
DOIs	https://doi.org/10.1016/j.molcel.2011.12.020
State	Published - Jan 13 2012
Externally published	Yes

ASJC Scopus subject areas

Molecular Biology
Cell Biology

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10.1016/j.molcel.2011.12.020

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title = "Ars2 Promotes proper replication-dependent histone mRNA 3' end formation",

abstract = "Ars2 is a component of the nuclear cap-binding complex that contributes to microRNA biogenesis and is required for cellular proliferation. Here, weexpand on the repertoire of Ars2-dependent microRNAs and determine that Ars2 regulates a number of mRNAs, the largest defined subset of which code for histones. Histone mRNAs are unique among mammalian mRNAs because they are not normally polyadenylated but, rather, are cleaved following a 3' stem loop. A significant reduction in correctly processed histone mRNAs was observed following Ars2 depletion, concurrent with an increase in polyadenylated histone transcripts. Furthermore, Ars2 physically associated with histone mRNAs and the noncoding RNA 7SK. Knockdown of 7SK led to an enhanced ratio of cleaved to polyadenylated histone transcripts, an effect dependent on Ars2. Together, the data demonstrate that Ars2 contributes to histone mRNA 3' end formation and expression and these functional properties of Ars2 are negatively regulated by interaction with 7SK RNA.",

author = "Gruber, {Joshua J.} and Olejniczak, {Scott H.} and Jeongsik Yong and Gaspare LaRocca and Gideon Dreyfuss and Thompson, {Craig B.}",

note = "Funding Information: The authors would like to thank members of the Thompson and Dreyfuss labs for their support and critical review of data and this manuscript, Isabela Oliva for help with antibody production, Eric Lai and Celia Andreu-Agullo for discussions on the function of Ars2 and the University of Pennsylvania microarray core facility for technical assistance. This work was funded in part by grants from the NCI and the Abramson Family Cancer Research Institute. ",

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AU - Dreyfuss, Gideon

AU - Thompson, Craig B.

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N2 - Ars2 is a component of the nuclear cap-binding complex that contributes to microRNA biogenesis and is required for cellular proliferation. Here, weexpand on the repertoire of Ars2-dependent microRNAs and determine that Ars2 regulates a number of mRNAs, the largest defined subset of which code for histones. Histone mRNAs are unique among mammalian mRNAs because they are not normally polyadenylated but, rather, are cleaved following a 3' stem loop. A significant reduction in correctly processed histone mRNAs was observed following Ars2 depletion, concurrent with an increase in polyadenylated histone transcripts. Furthermore, Ars2 physically associated with histone mRNAs and the noncoding RNA 7SK. Knockdown of 7SK led to an enhanced ratio of cleaved to polyadenylated histone transcripts, an effect dependent on Ars2. Together, the data demonstrate that Ars2 contributes to histone mRNA 3' end formation and expression and these functional properties of Ars2 are negatively regulated by interaction with 7SK RNA.

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Ars2 Promotes proper replication-dependent histone mRNA 3' end formation

Abstract

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