Results 51 to 60 of about 342,035 (308)

Dynamic relationships between ribosomal conformational and RNA positional changes during ribosomal translocation

Heliyon, 2016
Ribosomal translocation catalyzed by EF-G hydrolyzing GTP entails multiple conformational changes of ribosome and positional changes of tRNAs and mRNA in the ribosome.
Ping Xie
doaj   +1 more source

Characterization of the complete mitochondrial genome and phylogenetic analysis of bean thrips Megalurothrips usitatus (Bagnall, 1913) (Thysanoptera: thripidae)

Mitochondrial DNA. Part B. Resources, 2023
Megalurothrips usitatus (Bagnall, 1913) (Thysanoptera: Thripidae) is a widely distributed pest in Asia that primarily affects the production of snap beans and cowpea.
Lin Xing-Ming, Li Pan, Cai Du-Cheng, Li Jin-Hua   +3 more
doaj   +1 more source

Loss of IGF‐1R impairs DNA‐PKcs recruitment to chromatin leading to defective end‐joining

Molecular Oncology, EarlyView.
IGF‐1R promotes radioresistance by facilitating DNA‐PKcs recruitment to chromatin, enabling non‐homologous end‐joining (NHEJ) repair of double‐strand breaks. Inhibition or loss of IGF‐1R disrupts this recruitment to damage sites, driving compensatory reliance on microhomology‐mediated end‐joining (MMEJ) repair.
Matthew O. Ellis, Jack V. Mills, Wojciech Niedzwiedz, Valentine M. Macaulay   +3 more
wiley   +1 more source

The small-subunit processome is a ribosome assembly intermediate [PDF]

, 2004
The small-subunit (SSU) processome is a large ribonucleoprotein required for the biogenesis of the 18S rRNA and likely corresponds to the terminal knobs visualized by electron microscopy on the 5' end of nascent rRNAs.
Granneman, Sander; id_orcid, Baserga, Susan J, Gallagher, Jennifer E G, Mitchell, Brianna M, Bernstein, Kara A   +4 more
core   +1 more source

Complete mitochondrial genome of the little-known regional endemic Aporia hastata (Oberthür, 1892) (Lepidoptera: Pieridae)

Mitochondrial DNA. Part B. Resources, 2023
The present study reports the mitochondrial genome of A. hastata (Oberthür, 1892), a little-known Aporia species endemic to the southern margin of the Hengduan Mountains in Yunnan Province. This genome is circular, 15,148 bp in length, and consists of 13
Ya-Qi Jia, Xin Zhang, Shao-Ji Hu
doaj   +1 more source

HMG-boxes, ribosomopathies and neurodegenerative disease

Frontiers in Genetics, 2023
The UBTF E210K neuroregression syndrome is a predominantly neurological disorder caused by recurrent de novo dominant variants in Upstream Binding Factor, that is, essential for transcription of the ribosomal RNA genes. This unusual form of ribosomopathy
Tom Moss, Tom Moss, Mark S. LeDoux, Mark S. LeDoux, Colyn Crane-Robinson   +4 more
doaj   +1 more source

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

FEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento, Danniel Pereira‐Figueiredo, Gabriella Grossi de Lima Dias, Gabriel Ferreira dos Santos, Mariana Rodrigues Pereira, Rafael Brito, Karin C Calaza   +6 more
wiley   +1 more source

RNA polymerase I-specific subunits promote polymerase clustering to enhance the rRNA gene transcription cycle. [PDF]

, 2011
RNA polymerase I (Pol I) produces large ribosomal RNAs (rRNAs). In this study, we show that the Rpa49 and Rpa34 Pol I subunits, which do not have counterparts in Pol II and Pol III complexes, are functionally conserved using heterospecific ...
Gadal, O., Leger-Silvestre, Isabelle, Ostermaier, M.K., Panov, Konstantin; id_orcid, Panov, Kostya I, Schultz, P., Leger-Silvestre, I. (I), Olivier Gadal, Jorge Pérez-Fernández, Albert, Benjamin, Leger-Silvestre, I., Ostermaier, Martin K, Kostya I. Panov, Perez-Fernandez, J., Normand, C. (C), Schultz, Patrick, Schultz, P. (Patrick), Panov, Kostya I., Patrick Schultz, Gadal, O. (O), Normand, Christophe, Martin K. Ostermaier, Normand, C., Zomerdijk, Joost C.B.M., Albert, B. (B), Perez-Fernandez, J. (J), Ostermaier, M. (M) K. (K), Ostermaier, Martin K., Christophe Normand, Zomerdijk, Joost C B M, Gadal, Olivier, Joost C.B.M. Zomerdijk, Zomerdijk, J.C., Perez-Fernandez, Jorge, Isabelle Léger-Silvestre, Albert, B., Panov, K. (K) I. (I), Zomerdijk, Joost C. B. M., Benjamin Albert, Zomerdijk, J. (J) C. (C)   +39 more
core   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Reconstructing phylogeny from RNA secondary structure via simulated evolution [PDF]

, 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