Results 51 to 60 of about 5,849 (189)

Bacillus subtilis RNase HII Is Inefficient at Processing Guanosine Monophosphate and Damaged Ribonucleotides

Molecular Microbiology, EarlyView.
Bacillus subtilis RNase HII corrects ribonucleotide errors and mismatched ribonucleotides, but not damaged ribonucleotides. Mismatched ribonucleotides would also serve as substrates for mismatch repair while damaged ribonucleotides would be addressed through base excision repair.
Julianna R. Cresti, Lyle A. Simmons
wiley   +1 more source

Endoribonucleases associated with RNAs in chick embryos

FEBS Letters, 1979
proteins in hemopoietic rat cells were reported to have RNase activities [ 121. Similarly, an endogeneous endoribonucleolytic activity was found in the 50 S ribosomal subunit of Eschenihia coli [ 131. This paper describes the existence of a RNA-bound cytoplasmic endoribonuclease in chick embryo.
Denoya, Claudio D., Scodeller, Eduardo A., La torre, José L.   +2 more
openaire   +2 more sources

A Novel Endoribonuclease, RNase LS, in Escherichia coli [PDF]

Genetics, 2005
Abstract The dmd gene of bacteriophage T4 is required for the stability of late-gene mRNAs. When this gene is mutated, late genes are globally silenced because of rapid degradation of their mRNAs. Our previous work suggested that a novel Escherichia coli endonuclease, RNase LS, is responsible for the rapid degradation of mRNAs.
Yuichi, Otsuka, Tetsuro, Yonesaki
openaire   +2 more sources

RNA Sequencing Identifies New RNase III Cleavage Sites in Escherichia coli and Reveals Increased Regulation of mRNA

mBio, 2017
Ribonucleases facilitate rapid turnover of RNA, providing cells with another mechanism to adjust transcript and protein levels in response to environmental conditions. While many examples have been documented, a comprehensive list of RNase targets is not
Gina C. Gordon, Jeffrey C. Cameron, Brian F. Pfleger   +2 more
doaj   +1 more source

Protease‐mediated maturation of M‐PMV reverse transcriptase into a functional heterodimer

Protein Science, Volume 35, Issue 2, February 2026.
Abstract Reverse transcriptase (RT) of retroviruses orchestrates viral replication, yet its structural diversity remains poorly understood. Well‐studied RTs, such as those from HIV‐1, murine leukemia virus, and avian myeloblastosis virus, were characterized decades ago, but less prominent retroviruses have escaped detailed analysis.
Marina Kapisheva, Petra Junková, Ondřej Vaněk, Zuzana Jalovcová, Ivana Křížová, Alžběta Dostálková, Michaela Rumlová   +6 more
wiley   +1 more source

Manipulation of the Unfolded Protein Response by Intracellular Bacterial Pathogens: Mechanisms of ER Hijacking and Therapeutic Implications

The FASEB Journal, Volume 40, Issue 2, 31 January 2026.
This review illustrates how intracellular bacterial pathogens—such as Brucella, Mycobacterium tuberculosis, and Legionella—secrete effector proteins that specifically target the IRE1α, PERK, and ATF6 branches of the unfolded protein response (UPR) to hijack ER stress signaling.
Enhui Dai, Dongjie Sun, Yanxiao Zhao, Mengtao Zhang, Yifan Wu, Jiabo Ding   +5 more
wiley   +1 more source

Processing Endoribonucleases and mRNA Degradation in Bacteria [PDF]

Journal of Bacteriology, 2002
Volume 184, no. 17, p. 4645-4657, 2002. Page 4647, column 1, lines 42-45: The sentence should read “For example, one message in the T7 early polycistronic mRNA, as well as a few late messages, yields increased protein from RNase III cleavage while the others are not affected by such cleavages (41).”
openaire   +3 more sources

Type II Alveolar Epithelial Cells Promote Sepsis‐Induced Immunosuppression in Alveolar Macrophages via Exosomal lncRNA Rmrp Release

Advanced Science, Volume 13, Issue 1, 5 January 2026.
The S100A4/STAT3 axis promotes Rmrp transcription in AEC‐IIs and Rmrp expression in AEC‐II‐derived exosomes. Upon entry into AMs, Rmrp binds to and blocks the ubiquitination and degradation of ZFP36. Increased ZFP36 induced Pfkfb3 mRNA decay by binding to AREs in the 3′ UTR, curbing glycolysis and immune responses of AMs and aggravating SII and ...
Chengxi Liu, Weixia Xuan, Song Cao, Huayun Jia, Qian Wu, Xiaowu Tan, Qijie Wang, Xiaojun Li, Lisha Ding, Yaru Xiong, Meiyun Zhao, Longcheng Zheng, Yunzhu Xi, Jianhua Tan, Rong Li, Xulong Zhang, Wenjie Liu, Xu Wu   +17 more
wiley   +1 more source

Enhanced microRNA accumulation and gene silencing efficiency through optimized precursor base pairing

The Plant Journal, Volume 125, Issue 1, January 2026.
Significance Statement A large‐scale mutational analysis revealed that introducing a single G–C base pair upstream of the first DCL1 cleavage site in shc precursors enhances artificial microRNA accumulation and silencing efficiency, providing an optimized amiRNA precursor for improved gene regulation and biotechnological applications.
Juan‐José Llorens‐Gámez, Pedro José García‐Cano, Sara Rico‐Rodrigo, Lucía Duyos‐Casanova, Sara Toledano‐Franco, Alberto Carbonell   +5 more
wiley   +1 more source

RNA G‐Quadruplex RIBOTAC‐Mediated Targeted Degradation of lncRNA TERRA

Advanced Science, Volume 12, Issue 48, December 29, 2025.
This study introduces a selective RNA degradation strategy targeting long noncoding RNA (lncRNA) TERRA, upregulated in ALT (alternative lengthening of telomeres) cancer cells. Using ribonuclease‐targeting chimeras (RIBOTACs), RNase L is recruited to catalytically degrade TERRA, uncovering a novel approach to affect a disease associated lncRNA in ALT ...
Elias Khaskia, Dipak Dahatonde, Raphael I. Benhamou   +2 more
wiley   +1 more source