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Title: The N-terminal domains of FLASH and Lsm11 form a 2:1 heterotrimer for histone pre-mRNA 3’-end processing

Journal Article · · PLoS ONE

Unlike canonical pre-mRNAs, animal replication-dependent histone pre-mRNAs lack introns and are processed at the 3’-end by a mechanism distinct from cleavage and polyadenylation. They have a 3’ stem loop and histone downstream element (HDE) that are recognized by stem-loop binding protein (SLBP) and U7 snRNP, respectively. The N-terminal domain (NTD) of Lsm11, a component of U7 snRNP, interacts with FLASH NTD and these two proteins recruit the histone cleavage complex containing the CPSF-73 endonuclease for the cleavage reaction. Here, we determined crystal structures of FLASH NTD and found that it forms a coiled-coil dimer. Using solution light scattering, we characterized the stoichiometry of the FLASH NTD-Lsm11 NTD complex and found that it is a 2:1 heterotrimer, which is supported by observations from analytical ultracentrifugation and crosslinking.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
Sponsoring Organization:
National Institutes of Health (NIH); Taiwan Ministry of Science and Technology (MOST); • National Institute of General Medical Sciences (NIGMS); Howard Hughes Medical Institute (HHMI); USDOE Office of Science (SC)
Grant/Contract Number:
R35GM118093; S10OD012018; GM29832; 105-2320-B-010-012; 106-2320-B-010-013; S10 RR029205; AC02-06CH11357; AC02-05CH11231
OSTI ID:
1430295
Journal Information:
PLoS ONE, Vol. 12, Issue 10; ISSN 1932-6203
Publisher:
Public Library of ScienceCopyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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Interaction between FLASH and Lsm11 is essential for histone pre-mRNA processing in vivo in Drosophila text January 2011
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A Conserved Interaction That Is Essential for the Biogenesis of Histone Locus Bodies text January 2014
FLASH Is Required for the Endonucleolytic Cleavage of Histone Pre-mRNAs but Is Dispensable for the 5' Exonucleolytic Degradation of the Downstream Cleavage Product text January 2011
A novel zinc finger protein is associated with U7 snRNP and interacts with the stem-loop binding protein in the histone pre-mRNP to stimulate 3'-end processing text January 2002
The protein that binds the 3' end of histone mRNA: a novel RNA-binding protein required for histone pre-mRNA processing. text January 1996
A Complex Containing the CPSF73 Endonuclease and Other Polyadenylation Factors Associates with U7 snRNP and Is Recruited to Histone Pre-mRNA for 3'-End Processing text January 2012
Staged assembly of histone gene expression machinery at subnuclear foci in the abbreviated cell cycle of human embryonic stem cells text January 2008
A Genome-wide RNA Interference Screen Reveals that Variant Histones Are Necessary for Replication-Dependent Histone Pre-mRNA Processing text January 2007
A 3′ Exonuclease that Specifically Interacts with the 3′ End of Histone mRNA text January 2003
PHENIX: a comprehensive Python-based system for macromolecular structure solution. text January 2010
U7 snRNP-specific Lsm11 protein: dual binding contacts with the 100 kDa zinc finger processing factor (ZFP100) and a ZFP100-independent function in histone RNA 3' end processing text January 2005
Three Proteins of the U7-Specific Sm Ring Function as the Molecular Ruler To Determine the Site of 3'-End Processing in Mammalian Histone Pre-mRNA text January 2009
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A Complex Containing the CPSF73 Endonuclease and Other Polyadenylation Factors Associates with U7 snRNP and Is Recruited to Histone Pre-mRNA for 3'-End Processing journal October 2012
FLASH Is Required for the Endonucleolytic Cleavage of Histone Pre-mRNAs but Is Dispensable for the 5' Exonucleolytic Degradation of the Downstream Cleavage Product journal January 2011
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Cited By (2)

Composition and processing activity of a semi-recombinant holo U7 snRNP journal December 2019
Structure of an active human histone pre-mRNA 3′-end processing machinery journal February 2020

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