Differential regulation of mRNA fate by the human Ccr4-Not complex is driven by coding sequence composition and mRNA localization [PDF]
Background Regulation of protein output at the level of translation allows for a rapid adaptation to dynamic changes to the cell’s requirements. This precise control of gene expression is achieved by complex and interlinked biochemical processes that ...
Sarah L. Gillen +5 more
doaj +2 more sources
eIF4A2 drives repression of translation at initiation by Ccr4-Not through purine-rich motifs in the 5′UTR [PDF]
Background Regulation of the mRNA life cycle is central to gene expression control and determination of cell fate. miRNAs represent a critical mRNA regulatory mechanism, but despite decades of research, their mode of action is still not fully understood.
Ania Wilczynska +14 more
doaj +4 more sources
Novel roles of the multifunctional CCR4-NOT complex in post-transcriptional regulation [PDF]
The CCR4-NOT complex is highly conserved gene silencer, and more general functions of the complex have been elucidated at post-transcriptional levels. Specific regulatory proteins, including miRNA-induced silencing complex and its associate protein, bind
Toshifumi eInada, Shiho eMakino
doaj +3 more sources
Ccr4-Not complex reduces transcription efficiency in heterochromatin. [PDF]
Abstract Heterochromatic silencing is thought to occur through a combination of transcriptional silencing and RNA degradation, but the relative contribution of each pathway is not known. In this study, we analyzed RNA Polymerase II (RNA Pol II) occupancy and levels of nascent and steady-state RNA in different mutants of ...
Monteagudo-Mesas P +5 more
europepmc +4 more sources
Roquin proteins downregulate target mRNA expression by recruiting effectors such as the CCR4-NOT deadenylase complex. Here the authors provide molecular details of how Roquin proteins recruit the CCR4-NOT complex to repress the expression of its targets.
Annamaria Sgromo +7 more
doaj +2 more sources
The CCR4-NOT complex is a tumor suppressor in Drosophila melanogaster eye cancer models [PDF]
Background The CNOT3 protein is a subunit of the CCR4-NOT complex, which is involved in mRNA degradation. We recently identified CNOT3 loss-of-function mutations in patients with T-cell acute lymphoblastic leukemia (T-ALL). Methods Here, we use different
Carmen Vicente +9 more
doaj +2 more sources
Translation efficiency driven by CNOT3 subunit of the CCR4-NOT complex promotes leukemogenesis [PDF]
Protein synthesis is frequently deregulated during tumorigenesis. However, the precise contexts of selective translational control and the regulators of such mechanisms in cancer is poorly understood.
Maryam Ghashghaei +23 more
doaj +2 more sources
Isolation and characterization of human orthologs of yeast CCR4-NOT complex subunits [PDF]
The yeast CCR4-NOT protein complex is a global regulator of RNA polymerase II transcription. It is comprised of yeast NOT1 to NOT5, yeast CCR4 and additional proteins like yeast CAF1. Here we report the isolation of cDNAs encoding human NOT2, NOT3, NOT4 and a CAF1-like factor, CALIF.
Marc Lemaire, Martine A Collart
exaly +6 more sources
The CCR4-NOT complex is implicated in the viability of aneuploid yeasts.
To identify the genes required to sustain aneuploid viability, we screened a deletion library of non-essential genes in the fission yeast Schizosaccharomyces pombe, in which most types of aneuploidy are eventually lethal to the cell.
Yoshie Tange +12 more
doaj +3 more sources
The YTHDF family of proteins are able to bind and regulate the stability of methylated N6 RNA. Here the authors show that this decreased m6A RNA stability is mediated by direct recruitment of the CCR4–NOT deadenylase complex through YTHDF proteins.
Hao Du +7 more
doaj +2 more sources

