Results 111 to 120 of about 846,528 (387)

Identification of the prebiotic translation apparatus within the contemporary ribosome [PDF]

open access: yes, 2009
A structural element that could have existed independently in the prebiotic era was identified at the active site of the contemporary ribosome. It is suggested to have functioned as a proto-ribosome catalyzing peptide bond formation and non-coded ...
Ada Yonath   +3 more
core   +1 more source

Alterations of the mitochondrial proteome caused by the absence of mitochondrial DNA: A proteomic view [PDF]

open access: yes, 2006
The proper functioning of mitochondria requires that both the mitochondrial and the nuclear genome are functional. To investigate the importance of the mitochondrial genome, which encodes only 13 subunits of the respiratory complexes, the mitochondrial ...
Abdul   +39 more
core   +4 more sources

Overview of molecular signatures of senescence and associated resources: pros and cons

open access: yesFEBS Open Bio, EarlyView.
Cells can enter a stress response state termed cellular senescence that is involved in various diseases and aging. Detecting these cells is challenging due to the lack of universal biomarkers. This review presents the current state of senescence identification, from biomarkers to molecular signatures, compares tools and approaches, and highlights ...
Orestis A. Ntintas   +6 more
wiley   +1 more source

The Arabidopsis cytosolic ribosomal proteome: from form to function

open access: yesFrontiers in Plant Science, 2013
The cytosolic ribosomal proteome of Arabidopsis thaliana has been studied intensively by a range of proteomics approaches and is now one of the best-characterised eukaryotic ribosomal proteomes.
Adam James Carroll
doaj   +1 more source

A genomic approach to the study of Tribolium castaneum genetics, development & evolution [PDF]

open access: yes, 2004
During the last decade, Tribolium castaneum has become the insect of choice for comparative genetics and developmental studies outside of drosophilids. Until recently, most molecular studies have focused on the comparative analysis of early development ...
Savard, Joël
core  

Variant ribosomal RNA alleles are conserved and exhibit tissue-specific expression

open access: yesScience Advances, 2018
Ribosomal RNA sequence variants are conserved, exhibit tissue-specific expression, and are found in actively translating ribosomes. The ribosome, the integration point for protein synthesis in the cell, is conventionally considered a homogeneous ...
Matthew M. Parks   +10 more
semanticscholar   +1 more source

ATG4B is required for mTORC1‐mediated anabolic activity and is associated with clinical outcomes in non‐small cell lung cancer

open access: yesFEBS Open Bio, EarlyView.
The relationship between anabolic and catabolic processes governing lung cancer cell growth is nuanced. We show that ATG4B, an autophagy regulator, is elevated in lung cancer and that high ATG4B is associated with worse patient outcomes. Targeting ATG4B in cells reduces growth, protein synthesis, and mTORC1 activity, demonstrating a new relationship ...
Patrick J. Ryan   +6 more
wiley   +1 more source

The Influence of Extra-Ribosomal Functions of Eukaryotic Ribosomal Proteins on Viral Infection

open access: yesBiomolecules
The eukaryotic ribosome is a large ribonucleoprotein complex consisting of four types of ribosomal RNA (rRNA) and approximately 80 ribosomal proteins (RPs), forming the 40S and 60S subunits.
Zhongwei Zhao   +8 more
doaj   +1 more source

Evolutionary dynamics of the chloroplast genome in Daphne (Thymelaeaceae): comparative analysis with related genera and insights into phylogenetics

open access: yesFEBS Open Bio, EarlyView.
Comparative analysis of chloroplast genomes from 14 genera of Thymelaeaceae revealed variation in gene content, ranging from 128 to 142 genes, primarily influenced by IR expansion/contraction events and pseudogenization of ndhF, ndhI, and ndhG. Two large inversions were detected within the large single‐copy region, including a synapomorphic inversion ...
Abdullah   +8 more
wiley   +1 more source

Recent Advances on the Structure and Function of RNA Acetyltransferase Kre33/NAT10

open access: yesCells, 2019
Ribosome biogenesis is one of the most energy demanding processes in the cell. In eukaryotes, the main steps of this process occur in the nucleolus and include pre-ribosomal RNA (pre-rRNA) processing, post-transcriptional modifications, and assembly of ...
Sophie Sleiman, Francois Dragon
doaj   +1 more source

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