Results 71 to 80 of about 915,920 (303)

Direct activation of RNA polymerase III transcription by c-Myc

open access: yes, 2003
The proto-oncogene product c-Myc has a direct role in both metazoan cell growth and division. RNA polymerase III (pol III) is involved in the generation of transfer RNA and 5S ribosomal RNA, and these molecules must be produced in bulk to meet the need ...
Eisenman, R.N.   +3 more
core   +1 more source

RNA compaction and iterative scanning for small RNA targets by the Hfq chaperone

open access: yesNature Communications
RNA-guided enzymes must quickly search a vast sequence space for their targets. This search is aided by chaperones such as Hfq, a protein that mediates regulation by bacterial small RNAs (sRNAs).
Ewelina M. Małecka, Sarah A. Woodson
doaj   +1 more source

SPIN-LABELED TRANSFER RNA [PDF]

open access: yesProceedings of the National Academy of Sciences, 1969
The α-amino group of valyl-tRNA has been combined chemically with a nitroxide spin label through an amide linkage. This spin-labeled aminoacyl-tRNA has an electron paramagnetic resonance spectrum which reflects the mobility of the aminoacyl end of the tRNA molecule.
B M, Hoffman, P, Schofield, A, Rich
openaire   +2 more sources

Inhibiting stearoyl‐CoA desaturase suppresses bone metastatic prostate cancer by modulating cellular stress, mTOR signaling, and DNA damage response

open access: yesFEBS Letters, EarlyView.
Bone metastasis in prostate cancer (PCa) patients is a clinical hurdle due to the poor understanding of the supportive bone microenvironment. Here, we identify stearoyl‐CoA desaturase (SCD) as a tumor‐promoting enzyme and potential therapeutic target in bone metastatic PCa.
Alexis Wilson   +7 more
wiley   +1 more source

Mapping Current Studies of tRNA Fragments onto Disease Landscape

open access: yesBiomolecules
Transfer-RNA-derived fragments (tRFs) are a relatively recently discovered class of non-coding RNAs derived from both precursor and mature transfer RNAs (tRNAs).
Sathyanarayanan Vaidhyanathan   +16 more
doaj   +1 more source

The complete plastid genome of a marine microalgae Cryptophyceae sp. CCMP2293 (Cryptophyta)

open access: yesMitochondrial DNA. Part B. Resources, 2019
In this study, we present the complete plastid genome of Cryptophyceae sp. CCMP2293. The circular genome is 139,208 bp in length and contains 142 protein-coding genes (PCGs), 30 transfer RNA (tRNA) genes, 6 ribosome RNA (rRNA) genes, and 1 transfer ...
Kuipeng Xu, Shunxin Hu, Xianghai Tang
doaj   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS 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

Biogenesis of Glyoxysomes [PDF]

open access: yes, 1980
Biosynthesis of isocitrate lyase, a tetrameric enzyme of the glyoxysomal matrix, was studied in Neurospora crassa, in which the formation of glyoxysomes was induced by a substitution of sucrose medium by acetate medium. * 1.
Neupert, Walter, Zimmermann, Richard
core   +1 more source

Bifunctional transfer-messenger RNA [PDF]

open access: yesBiochimie, 2011
Transfer-messenger RNA (tmRNA) is a bifunctional RNA that has properties of a tRNA and an mRNA. tmRNA uses these two functions to release ribosomes stalled during translation and target the nascent polypeptides for degradation. This concerted reaction, known as trans-translation, contributes to translational quality control and regulation of gene ...
Kenneth C, Keiler, Nitya S, Ramadoss
openaire   +2 more sources

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

open access: yesFEBS 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

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