Results 121 to 130 of about 203,757 (346)

Probing complex RNA structures by mechanical force

, 2003
RNA secondary structures of increasing complexity are probed combining single molecule stretching experiments and stochastic unfolding/refolding simulations. We find that force-induced unfolding pathways cannot usually be interpretated by solely invoking
A. Xayaphoummine, Allemand, Cluzel, Cocco, D. Chatenay, Essevaz-Roulet, Evers, Fersht, Fontana, Gerland, Gutell, H. Isambert, Isambert, J-F. Léger, J. Robert, Kellermayer, Liphardt, Lubensky, Léger, Mathews, Montanari, Nowotny, Onoa, Powers, Rief, Rief, Rief, S. Harlepp, Smith, Svoboda, T. Marchal, Treiber, Treiber, Wimberly, Woodson, Xayaphoummine, Yusupov   +36 more
core   +3 more sources

RNA–DNA differences in human mitochondria restore ancestral form of 16S ribosomal RNA

Genome Research, 2013
RNA transcripts are generally identical to the underlying DNA sequences. Nevertheless, RNA–DNA differences (RDDs) were found in the nuclear human genome and in plants and animals but not in human mitochondria.
Dan Bar-Yaacov, Gal Avital, Liron Levin, Allison L. Richards, Naomi Hachen, Boris Rebolledo Jaramillo, A. Nekrutenko, R. Zarivach, D. Mishmar   +8 more
semanticscholar   +1 more source

TRMT6‐Mediated m1A Modification of CDK9 mRNA Is a Dual‐Pronged Pathogenic Driver for HBV‐Related Hepatocellular Carcinoma

Advanced Science, EarlyView.
TRMT6‐mediated m1A modification in CDK9 mRNA enhances its mRNA stability and translation efficiency, thereby increasing the protein levels of CDK9. Upregulated CDK9 promotes the progression of HCC by elevating the levels of oncogenic factors including p‐STAT3, MCL1, and BCL‐2. On the other hand, CDK9 phosphorylates TARDBP at Ser254 to activate HBV core
Rui Zhang, Dandan Zong, Rui Liu, Yubo Wang, Qingqing Gu, Yao Yao, Wenfang Zheng, Mengmeng Yuan, Simeng Wang, Rongrong Cui, Daxu Li, Siwen Dang, Peng Hou   +12 more
wiley   +1 more source

Combined use of 16S ribosomal DNA and 16S rRNA to study the bacterial community of polychlorinated biphenyl-polluted soil

, 2001
The bacterial diversity assessed from clone libraries prepared from rRNA (two libraries) and ribosomal DNA (rDNA) (one library) from polychlorinated biphenyl (PCB)-polluted soil has been analyzed.
Amann, R., Llobet-Brossa, E., Moore, E., Nogales, B., Rosselló-Mora, R., Timmis, K.   +5 more
core  

The Deafness-Associated Mitochondrial DNA Mutation at Position 7445, Which Affects tRNASer(UCN) Precursor Processing, Has Long-Range Effects on NADH Dehydrogenase Subunit ND6 Gene Expression [PDF]

, 1998
The pathogenetic mechanism of the deafness-associated mitochondrial DNA (mtDNA) T7445C mutation has been investigated in several lymphoblastoid cell lines from members of a New Zealand pedigree exhibiting the mutation in homoplasmic form and from control
Attardi, Giuseppe, Enriquez, José Antonio, Fischel-Ghodsian, Nathan, Guan, Min-Xin, Lin, Catherine P., Maw, Marion A., Puranam, Ram S.   +6 more
core   +1 more source

Euglena gracilis chloroplast ribosomal RNA transcription units. II. Nucleotide sequence homology between the 16 S–23 S ribosomal RNA spacer and the 16 S ribosomal RNA leader regions.

Journal of Biological Chemistry, 1980
The DNA sequences of two segments of the ribosomal RNA transcription units of Euglena gracilis Pringsheim strain Z chloroplast DNA have been determined. The first is from the 16 S to 23 S rRNA spacer region. The nucleotide sequence determined includes 64 bp from the 3'-end of the 16 S rRNA gene, the adjacent 87-bp spacer containing 68A-T base pairs, a ...
E M, Orozco, K E, Rushlow, J R, Dodd, R B, Hallick   +3 more
openaire   +2 more sources

Paternal Circadian Disruption Impairs Offspring Cognition via Sperm microRNAs

Advanced Science, EarlyView.
Paternal circadian disruption remodels the sperm small RNA payload, elevating miR‐92a‐3p/miR‐25‐3p levels and perturbing early embryonic gene regulatory programs. Microinjection experiments and single‐embryo transcriptomics reveal sex‐specific developmental vulnerabilities, ultimately impairing offspring hippocampal synaptic plasticity and cognition ...
Kexin Zou, Sisi Luo, Binliang Tang, Zhiqiang Liu, Yuchuan Zhou, Yicong Meng, Zhengmu Wu, Zheng Sun, Weihui Shi, Jianzhong Sheng, Chuanjin Yu, Zhenhua Li, Siyi Wei, Mo Zhang, Yujie Luo, Jing Yan, Xueyun Qin, Jiahang Mo, Chengliang Zhou, Jinsong Li, Hefeng Huang, Yifu Ding, Guolian Ding   +22 more
wiley   +1 more source

Gut Mycobiota‐Associated Tryptophan Catabolites Protect Against Metabolic Dysfunction‐Associated Steatotic Liver Disease

Advanced Science, EarlyView.
ABSTRACT Accumulating evidence suggests that the intestinal microbiota participates in the progression of metabolic dysfunction‐associated steatotic liver disease (MASLD) through microbiota‐host interaction. However, the beneficial role of commensal mycobiota in MASLD progression remains poorly understood.
Shuping Qiao, Shuangya Fan, Juan Xu, Zhen Xu, Chen Peng, Junxing Qu, Ziqian Bing, Shizhen Zhou, Sunan Shen, Guifang Xu, Yue Zhao, Tingting Wang   +11 more
wiley   +1 more source

The Beak of Eukaryotic Ribosomes: Life, Work and Miracles

Biomolecules
Ribosomes are not totally globular machines. Instead, they comprise prominent structural protrusions and a myriad of tentacle-like projections, which are frequently made up of ribosomal RNA expansion segments and N- or C-terminal extensions of ribosomal ...
Sara Martín-Villanueva, Carla V. Galmozzi, Carmen Ruger-Herreros, Dieter Kressler, Jesús de la Cruz   +4 more
doaj   +1 more source

Systematic processing of ribosomal RNA gene amplicon sequencing data

GigaScience, 2019
Background With the advent of high-throughput sequencing, microbiology is becoming increasingly data-intensive. Because of its low cost, robust databases, and established bioinformatic workflows, sequencing of 16S/18S/ITS ribosomal RNA (rRNA) gene ...
J. Tremblay, É. Yergeau
semanticscholar   +1 more source