CN
Search Within
R8508
应用筛选条件
关键词:'R8508'
显示 91-120 共 122 条结果 关于 "R8508" 范围 论文
Sarit Edelheit et al.
PLoS genetics, 9(6), e1003602-e1003602 (2013-07-05)
The presence of 5-methylcytidine (m(5)C) in tRNA and rRNA molecules of a wide variety of organisms was first observed more than 40 years ago. However, detection of this modification was limited to specific, abundant, RNA species, due to the usage
Wolf D Hirschmann et al.
Nucleic acids research, 42(6), 4043-4055 (2014-01-22)
The budding yeast multi-K homology domain RNA-binding protein Scp160p binds to >1000 messenger RNAs (mRNAs) and polyribosomes, and its mammalian homolog vigilin binds transfer RNAs (tRNAs) and translation elongation factor EF1alpha. Despite its implication in translation, studies on Scp160p's molecular
Ting Shuang Pan et al.
Folia parasitologica, 60(3), 181-191 (2013-08-21)
Acanthocephalans are a small group of obligate endoparasites. They and rotifers are recently placed in a group called Syndermata. However, phylogenetic relationships within classes of acanthocephalans, and between them and rotifers, have not been well resolved, possibly due to the
Biochemistry: The ylide has landed.
Bradley J Landgraf et al.
Nature, 498(7452), 45-47 (2013-05-17)
Johannes Popow et al.
Nature, 511(7507), 104-107 (2014-05-30)
RNA ligases have essential roles in many cellular processes in eukaryotes, archaea and bacteria, including in RNA repair and stress-induced splicing of messenger RNA. In archaea and eukaryotes, RNA ligases also have a role in transfer RNA splicing to generate
Yunpeng Yang et al.
Applied and environmental microbiology, 86(13) (2020-05-03)
Small RNAs (sRNAs) are crucial regulatory molecules in organisms and are well-known not only for their roles in the control of diverse crucial biological processes but also for their value in regulation rewiring. However, to date, in Gram-positive anaerobic solventogenic
Naohiro Terasaka et al.
Nature chemical biology, 10(7), 555-557 (2014-06-09)
The Watson-Crick base pairs between the 3'-terminal end of tRNAs and ribosomal RNA in the peptidyl transferase center are universally conserved. Here, we report that the introduction of compensatory mutations to Escherichia coli RNAs in this site leads to an
Emily B Kramer et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(52), 21042-21047 (2013-12-04)
In eukaryotes, transfer RNAs (tRNAs) are transcribed in the nucleus yet function in the cytoplasm; thus, tRNA movement within the cell was believed to be unidirectional--from the nucleus to the cytoplasm. It is now known that mature tRNAs also move
Wei Li et al.
Gene, 555(2), 169-177 (2014-12-03)
Cuora trifasciata has become one of the most critically endangered species in the world. The complete mitochondrial genome of C. trifasciata (Chinese three-striped box turtle) was determined in this study. Its mitochondrial genome is a 16,575-bp-long circular molecule that consists
Sebastian Kirchner et al.
Nature reviews. Genetics, 16(2), 98-112 (2014-12-24)
tRNAs, nexus molecules between mRNAs and proteins, have a central role in translation. Recent discoveries have revealed unprecedented complexity of tRNA biosynthesis, modification patterns, regulation and function. In this Review, we present emerging concepts regarding how tRNA abundance is dynamically
Sichen Shao et al.
Molecular cell, 50(5), 637-648 (2013-05-21)
Quality control of defective mRNAs relies on their translation to detect the lesion. Aberrant proteins are therefore an obligate byproduct of mRNA surveillance and must be degraded to avoid disrupting protein homeostasis. These defective translation products are thought to be
Dawid Krokowski et al.
The Journal of biological chemistry, 288(24), 17202-17213 (2013-05-07)
Endoplasmic reticulum (ER) stress-induced responses are associated with the loss of insulin-producing β-cells in type 2 diabetes mellitus. β-Cell survival during ER stress is believed to depend on decreased protein synthesis rates that are mediated via phosphorylation of the translation
Lorenzo Peverelli et al.
Muscle & nerve, 50(2), 292-295 (2014-04-09)
A 61-year-old woman with a 5-year history of progressive muscle weakness and atrophy had a muscle biopsy characterized by a combination of dystrophic features (necrotic fibers and endomysial fibrosis) and mitochondrial alterations [ragged-red, cytochrome c oxidase (COX)-negative fibers]. Sequencing of
Tamir Tuller et al.
Nucleic acids research, 43(1), 13-28 (2014-12-17)
The codon composition of the coding sequence's (ORF) 5' end first few dozen codons is known to be distinct to that of the rest of the ORF. Various explanations for the unusual codon distribution in this region have been proposed
Changsun Choi et al.
Methods in molecular biology (Clifton, N.J.), 326, 173-188 (2006-06-20)
In this chapter, we describe a simple and relatively rapid technique for detecting low-abundance slug mRNA in cultured cells. The procedure uses nonradioactive digoxigenin-labeled RNA probes that are more sensitive than deoxyribonucleic probes and simpler to detect than radioactively labeled
Tanja Kalstrup et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(20), 8272-8277 (2013-05-01)
Atomic-scale models on the gating mechanism of voltage-gated potassium channels (Kv) are based on linear interpolations between static structures of their initial and final state derived from crystallography and molecular dynamics simulations, and, thus, lack dynamic structural information. The lack
Sarah McMahon et al.
Carcinogenesis, 35(5), 1046-1054 (2014-01-21)
The presence of mitochondrial DNA (mtDNA) mutations in human cancer has long been recognized, but their functional significance has remained obscure. Debate persists as to whether the mutations help drive the tumor, or are bystander events. Here, we analyze next-generation
Ulf-Peter Guenther et al.
Nature, 502(7471), 385-388 (2013-09-24)
Nucleic-acid-binding proteins are generally viewed as either specific or nonspecific, depending on characteristics of their binding sites in DNA or RNA. Most studies have focused on specific proteins, which identify cognate sites by binding with highest affinities to regions with
Tomasz W Turowski
Gene, 526(1), 23-29 (2013-05-04)
In eukaryotes, three RNA polymerases are responsible for transcription. These complex enzymes show many similarities with one another, such as several common or highly homologue subunits, while some other features, such as transcript length, diversity, processing, and transcription regulation, are
Manuel Neeb et al.
Journal of medicinal chemistry, 57(13), 5566-5578 (2014-06-25)
Lead optimization focuses on binding-affinity improvement. If a flat structure-activity relationship is detected, usually optimization strategies are abolished as unattractive. Nonetheless, as affinity is composed of an enthalpic and entropic contribution, factorization of both can unravel the complexity of a
Encyclopedia of Agriculture and Food Systems (2015)
Arto Pulk et al.
Science (New York, N.Y.), 340(6140), 1235970-1235970 (2013-07-03)
Protein synthesis by the ribosome requires the translocation of transfer RNAs and messenger RNA by one codon after each peptide bond is formed, a reaction that requires ribosomal subunit rotation and is catalyzed by the guanosine triphosphatase (GTPase) elongation factor
Narayana Annaluru et al.
Science (New York, N.Y.), 344(6179), 55-58 (2014-03-29)
Rapid advances in DNA synthesis techniques have made it possible to engineer viruses, biochemical pathways and assemble bacterial genomes. Here, we report the synthesis of a functional 272,871-base pair designer eukaryotic chromosome, synIII, which is based on the 316,617-base pair
Florian Eggenhofer et al.
Nucleic acids research, 41(Web Server issue), W499-W503 (2013-05-04)
A standard method for the identification of novel non-coding RNAs is homology search by covariance models. Covariance models are constructed for specific RNA families with common sequence and structure (e.g. transfer RNAs). Currently, there are models for 2208 families available
Jin Chen et al.
Nature structural & molecular biology, 20(6), 718-727 (2013-04-30)
During translation elongation, the ribosome compositional factors elongation factor G (EF-G; encoded by fusA) and tRNA alternately bind to the ribosome to direct protein synthesis and regulate the conformation of the ribosome. Here, we use single-molecule fluorescence with zero-mode waveguides
Stefan Klumpp et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(42), 16754-16759 (2013-10-02)
Bacterial growth is crucially dependent on protein synthesis and thus on the cellular abundance of ribosomes and related proteins. Here, we show that the slow diffusion of the bulky tRNA complexes in the crowded cytoplasm imposes a physical limit on
Steven B Zhang et al.
Radiation research, 180(4), 407-413 (2013-09-26)
This study demonstrates that mice, similar to humans, have a common mitochondrial DNA deletion (3,860 bp) that encodes 5 transfer RNA genes and 5 polypeptide genes that is related to aging, tissue type and radiotoxicity. Our research indicates that the
Jean Lehmann et al.
Nucleic acids research, 41(10), 5494-5502 (2013-04-13)
The structure and function of conserved motifs constituting the apex of Stem I in T-box mRNA leaders are investigated. We point out that this apex shares striking similarities with the L1 stalk (helices 76-78) of the ribosome. A sequence and
Jie Zhou et al.
Science (New York, N.Y.), 340(6140), 1236086-1236086 (2013-07-03)
Translocation of messenger and transfer RNA (mRNA and tRNA) through the ribosome is a crucial step in protein synthesis, whose mechanism is not yet understood. The crystal structures of three Thermus ribosome-tRNA-mRNA-EF-G complexes trapped with β,γ-imidoguanosine 5'-triphosphate (GDPNP) or fusidic
Nadezhda V Petrova et al.
Cell cycle (Georgetown, Tex.), 15(3), 337-344 (2015-12-23)
Heat stress is one of the best-studied exogenous stress factors; however little is known about its delayed effects. Recently, we have shown that heat stress induces cellular senescence-like G2 arrest exclusively in early S-phase cells. The mechanism of this arrest
4/5