Results 91 to 100 of about 509,011 (342)

16S ribosomal RNA gene-based metagenomics: A review

Biomedical Research Journal, 2020
With the advent of contemporary molecular tools, the conventional microbiological isolation, enrichment techniques, and approaches have changed considerably.
Asmita Kamble, Shriya Sawant, Harinder Singh   +2 more
doaj   +1 more source

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

, 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, Anat Bashan, Chen Davidovich, Ilana Agmon   +3 more
core   +1 more source

HCV IRES manipulates the ribosome to promote the switch from translation initiation to elongation. [PDF]

, 2013
The internal ribosome entry site (IRES) of the hepatitis C virus (HCV) drives noncanonical initiation of protein synthesis necessary for viral replication.
A Ben-Shem, A Devaraj, AA Malygin, AD Petropoulos, AY Keel, Breanna S Vollmar, C Chen, CM Spahn, CS Fraser, CS Fraser, D Boehringer, D Hartz, D Sousa, Dan Shi, DD Ian'shina, DV Sizova, EF Pettersen, F Odreman-Macchioli, F Peske, F Robert, GA Otto, GJ Kleywegt, H Ji, IB Lomakin, IM Terenin, J Bukh, J Rabl, J Wower, JA Mindell, JE Wilson, Jeffrey S Kieft, JH Kim, JM Fringer, JR Lytle, JR Lytle, JS Kieft, JS Kieft, K Tsukiyama-Kohara, KE Berry, KI Kalliampakou, LA Passmore, M Honda, M Ohi, M Selmer, M Stoneley, M van Heel, ME Filbin, Megan E Filbin, MG Acker, MM Yusupov, N Grigorieff, N Locker, O Galkin, P Antúnez de Mayolo, P Simmonds, PJ Lukavsky, PJ Lukavsky, RE Monro, RJ Jackson, S Fukushi, S Uemura, SM Dibrov, T Döring, Tamir Gonen, TV Pestova, TV Pestova, U Geigenmüller, VG Kolupaeva, Y Yu   +68 more
core   +1 more source

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

FEBS 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, Hui Li, Rushan Yan, Chengyu Chen, Madiha Islam, Abdul Majid, Ibrar Ahmed, Parviz Heidari, Xiaoxuan Tian   +8 more
wiley   +1 more source

Quantitative nucleotide level analysis of regulation of translation in response to depolarization of cultured neural cells [PDF]

, 2017
Studies on regulation of gene expression have contributed substantially to understanding mechanisms for the long-term activity-dependent alterations in neural connectivity that are thought to mediate learning and memory.
Dalal, Jasbir S, Dougherty, Joseph D, Lake, Allison M, O\u27Brien, David R, Sapkota, Darshan, Yang, Chengran   +5 more
core   +2 more sources

Durable B‐Cell Impairment While Sparing IgA B Cells After Ocrelizumab Therapy in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Ocrelizumab (OCR), a humanized anti‐CD20 monoclonal antibody, is highly efficient in relapsing–remitting multiple sclerosis (RR‐MS). We assessed early cellular B‐cell profiles in patients prior to OCR treatment, on OCR treatment, and after 15 months of therapy discontinuation.
Alexandra Garcia, Stephane Rodriguez, Emilie Dugast, Christine Lebrun‐Frenay, Eric Thouvenot, Jérôme de Sèze, Emmanuelle Le Page, Sandra Vukusic, Inès Doghri, Eric Berger, Olivier Casez, Pierre Labauge, Aurélie Ruet, Catarina Raposo, Fabienne Le Frère, Arnaud B. Nicot, Sandrine Wiertlewski, Pierre‐Antoine Gourraud, Laure Michel, Laureline Berthelot, David‐Axel Laplaud   +20 more
wiley   +1 more source

Reconstructing phylogeny from RNA secondary structure via simulated evolution

, 2002
DNA sequences of genes encoding functional RNA molecules (e.g., ribosomal RNAs) are commonly used in phylogenetics (i.e. to infer evolutionary history).
Fischer, Will, Geard, Nicholas
core  

RRP9 Promotes Esophageal Squamous Cell Carcinoma Progression through E2F1 Transcriptional Regulation of CDK1

Advanced Biology, EarlyView.
The study reveals that RRP9 is abnormally highly expressed in ESCC tissues and is closely associated with poor prognosis in patients. Furthermore, it is found that RRP9 promotes ESCC progression through enhancing the E2F1‐mediated transcriptional regulation of CDK1.
Gang He, Yilong Wan, Yanbo Zhu, Bo Peng, Shengxiang Shao, Xinyi Zou, Zhenyu Han, Jiaxi Li, Sheng Ju, Xin Tong, Jun Zhao, Hansi Liang, Liuqing Zhang, Jiashi Xiong, Dong Jiang   +14 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

Interaction of rRNA with mRNA and tRNA in Translating Mammalian Ribosome: Functional Implications in Health and Disease

Biomolecules, 2018
RNA-RNA interaction slowly emerges as a critical component for the smooth functioning of gene expression processes, in particular in translation where the central actor is an RNA powered molecular machine.
Amandine Bastide, Alexandre David
doaj   +1 more source