Abstract
In eukaryotes, the process of messenger RNA 3'-end formation involves endonucleolytic cleavage of the transcript followed by synthesis of the poly(A) tail. The complex machinery involved in this maturation process contains two proteins of the metallo-beta-lactamase (MBL) superfamily, the 73 and 100 kDa subunits of the cleavage and polyadenylation specificity factor (CPSF). By using an in vitro system to assess point mutations in these two mammalian proteins, we found that conserved residues from the MBL motifs of both polypeptides are required for assembly of the endonuclease activity that cleaves histone pre-mRNAs. This indicates that CPSF73 and CPSF100 act together in the process of maturation of eukaryotic pre-messenger RNAs, similar to other members of the MBL family, RNases Z and J, which function as homodimers.
MeSH Terms
Amino Acid Motifs/physiology
Amino Acid Sequence
Base Sequence
Cell Line
Cleavage And Polyadenylation Specificity Factor/chemistry,genetics,physiology
Conserved Sequence/physiology
Endonucleases/metabolism,physiology
Enzyme Activation/genetics
HeLa Cells
Histones/biosynthesis,genetics
Humans
Molecular Sequence Data
Protein Structure, Tertiary
Protein Subunits/genetics,physiology
RNA 3' End Processing/genetics
RNA Precursors/metabolism
RNA, Messenger/metabolism
Chemicals
Cleavage And Polyadenylation Specificity Factor
Histones
Protein Subunits
RNA Precursors
RNA, Messenger
Endonucleases
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Kolev Nikolay G
Howard Hughes Medical Institute, Yale University, 295 Congress Avenue, New Haven, Connecticut 06519, USA.
Yario Therese A
Benson Eleni
Steitz Joan A
References (21)
21 references, click to expand
-
Symplekin and multiple other polyadenylation factors participate in 3'-end maturation of histone mRNAs.
Genes Dev. 2005 Nov 1;19(21):2583-92
PMID: 16230528
-
Symplekin, a novel type of tight junction plaque protein.
J Cell Biol. 1996 Aug;134(4):1003-18
PMID: 8769423
-
A genome-wide RNA interference screen reveals that variant histones are necessary for replication-dependent histone pre-mRNA processing.
Mol Cell. 2007 Nov 30;28(4):692-9
PMID: 18042462
-
Protein factors in pre-mRNA 3'-end processing.
Cell Mol Life Sci. 2008 Apr;65(7-8):1099-122
PMID: 18158581
-
The polyadenylation factor CPSF-73 is involved in histone-pre-mRNA processing.
Cell. 2005 Oct 7;123(1):37-48
PMID: 16213211
-
Temporal order of RNA-processing reactions in trypanosomes: rapid trans splicing precedes polyadenylation of newly synthesized tubulin transcripts.
Mol Cell Biol. 1993 Jan;13(1):720-5
PMID: 8417363
-
Formation of the 3' end of histone mRNA: getting closer to the end.
Gene. 2007 Jul 15;396(2):373-90
PMID: 17531405
-
Generation of histone mRNA 3' ends by endonucleolytic cleavage of the pre-mRNA in a snRNP-dependent in vitro reaction.
EMBO J. 1986 Jun;5(6):1319-26
PMID: 3015597
-
Crystal structure of TTHA0252 from Thermus thermophilus HB8, a RNA degradation protein of the metallo-beta-lactamase superfamily.
J Biochem. 2006 Oct;140(4):535-42
PMID: 16945939
-
An evolutionary classification of the metallo-beta-lactamase fold proteins.
In Silico Biol. 1999;1(2):69-91
PMID: 11471246
-
Polyadenylation factor CPSF-73 is the pre-mRNA 3'-end-processing endonuclease.
Nature. 2006 Dec 14;444(7121):953-6
PMID: 17128255
-
5'-to-3' exoribonuclease activity in bacteria: role of RNase J1 in rRNA maturation and 5' stability of mRNA.
Cell. 2007 May 18;129(4):681-92
PMID: 17512403
-
When all's zed and done: the structure and function of RNase Z in prokaryotes.
Nat Rev Microbiol. 2007 Apr;5(4):278-86
PMID: 17363966
-
Evidence that polyadenylation factor CPSF-73 is the mRNA 3' processing endonuclease.
RNA. 2004 Apr;10(4):565-73
PMID: 15037765
-
A CPSF-73 homologue is required for cell cycle progression but not cell growth and interacts with a protein having features of CPSF-100.
Mol Cell Biol. 2005 Feb;25(4):1489-500
PMID: 15684398
-
A complex containing CstF-64 and the SL2 snRNP connects mRNA 3' end formation and trans-splicing in C. elegans operons.
Genes Dev. 2001 Oct 1;15(19):2562-71
PMID: 11581161
-
Metallo-beta-lactamase fold within nucleic acids processing enzymes: the beta-CASP family.
Nucleic Acids Res. 2002 Aug 15;30(16):3592-601
PMID: 12177301
-
Variable effects of the conserved RNA hairpin element upon 3' end processing of histone pre-mRNA in vitro.
Nucleic Acids Res. 1993 Apr 11;21(7):1569-75
PMID: 8479907
-
Integrator, a multiprotein mediator of small nuclear RNA processing, associates with the C-terminal repeat of RNA polymerase II.
Cell. 2005 Oct 21;123(2):265-76
PMID: 16239144
-
Nucleases of the metallo-beta-lactamase family and their role in DNA and RNA metabolism.
Crit Rev Biochem Mol Biol. 2007 Mar-Apr;42(2):67-93
PMID: 17453916
-
Structural insights into the dual activity of RNase J.
Nat Struct Mol Biol. 2008 Feb;15(2):206-12
PMID: 18204464