Results 61 to 70 of about 962,124 (298)

NsrR1, a Nitrogen stress-repressed sRNA, contributes to the regulation of nblA in Nostoc sp. PCC 7120 [PDF]

, 2018
Small regulatory RNAs (sRNAs) are currently considered as major post-transcriptional regulators of gene expression in bacteria. The interplay between sRNAs and transcription factors leads to complex regulatory networks in which both transcription factors
Muro Pastor, Alicia María, Vioque Peña, Agustín, Álvarez Escribano, Isidro   +2 more
core   +3 more sources

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Predictable control of RNA lifetime using engineered degradation-tuning RNAs

Nature Chemical Biology, 2021
The ability to tune RNA and gene expression dynamics is greatly needed for biotechnological applications. Native RNA stabilizers or engineered 5' stability hairpins have been used to regulate transcript half-life to control recombinant protein expression. However, these methods have been mostly ad hoc and hence lack predictability and modularity. Here,
Qi Zhang, Duo Ma, Fuqing Wu, Kylie Standage-Beier, Xingwen Chen, Kaiyue Wu, Alexander A. Green, Xiao Wang   +7 more
openaire   +3 more sources

Attacked from All Sides: RNA Decay in Antiviral Defense

Viruses, 2017
The innate immune system has evolved a number of sensors that recognize viral RNA (vRNA) to restrict infection, yet the full spectrum of host-encoded RNA binding proteins that target these foreign RNAs is still unknown.
Jerome M. Molleston, Sara Cherry
doaj   +1 more source

The South American fruit fly : an important pest insect with RNAi-sensitive larval stages [PDF]

, 2019
RNA interference (RNAi) technology has been used in the development of approaches for pest control. The presence of some essential genes, the so-called "core genes," in the RNAi machinery is crucial for its efficiency and robust response in gene ...
Cagliari, Deise, Dias, Nayma, Kremer, Frederico Schmitt, Nava, Dori Edson, Rickes, Leticia Neutzling, Smagghe, Guy, Zotti, Moises   +6 more
core   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Plus-strand RNA viruses hijack Musashi homolog 1 to shield viral RNA from cytoplasmic ribonuclease degradation

Journal of Virology
A successful strategy employed by RNA viruses to achieve replication is to evade host cell RNase degradation. However, the mechanisms through which plus-strand RNA viruses effectively shield viral RNA from cellular ribonuclease degradation remain unclear.
Defang Zhou, Menglu Xu, Qingjie Liu, Ruixue Xin, Gege Cui, Longying Ding, Xiaoyang Liu, Xinyue Zhang, Tianxing Yan, Jing Zhou, Shuhai He, Liangyu Yang, Bin Xiang, Ziqiang Cheng   +13 more
doaj   +1 more source

Internuclear gene silencing in Phytophthora infestans is established through chromatin remodelling [PDF]

, 2008
In the plant pathogen Phytophthora infestans, nuclear integration of inf1 transgenic DNA sequences results in internuclear gene silencing of inf1. Although silencing is regulated at the transcriptional level, it also affects transcription from other ...
Appiah, A.A., Govers, F., Gow, N.A.R., Grenville-Briggs, L., Li, S., Shepherd, S.J., Walker, C.A., West, P., van   +7 more
core   +3 more sources

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

FEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Degradation of Hypomodified tRNA\u3csub\u3ei\u3c/sub\u3e\u3csup\u3eMet\u3c/sup\u3e in vivo Involves RNA-dependent ATPase Activity of the DExH Helicase Mtr4p [PDF]

, 2008
Effective turnover of many incorrectly processed RNAs in yeast, including hypomodified tRNAi Met, requires the TRAMP complex, which appends a short poly(A) tail to RNA designated for decay. The poly(A) tail stimulates degradation by the exosome.
Anderson, James T., Jankowsky, Eckhard, Jia, Huijue, Wang, Xuying   +3 more
core   +1 more source