Results 61 to 70 of about 52,163 (306)

An evolutionary ratchet leading to loss of elongation factors in eukaryotes [PDF]

, 2014
Background The GTPase eEF1A is the eukaryotic factor responsible for the essential, universal function of aminoacyl-tRNA delivery to the ribosome.
Kamenski, Piotr, Atkinson, Gemma C.,, Atkinson, Gemma C., Soosaar, Axel, Hauryliuk, Vasili,, Ivan Chicherin, Martin Carr, Tenson, Tanel,, Vasili Hauryliuk, Carr, Martin, Tanel Tenson, Kamenski, Piotr,, Kuzmenko, Anton, Hauryliuk, Vasili, Tenson, Tanel, Kuzmenko, Anton,, Chicherin, Ivan,, Carr, Martin,, Piotr Kamenski, Gemma C Atkinson, Soosaar, Axel,, Anton Kuzmenko, Lund University., Axel Soosaar, Chicherin, Ivan   +24 more
core   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

Molecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch, Isabel Vogel, Sina Nokodian, Johanna Moeller, Antonia Blechschmidt, Vicky Hecht, Vanessa Kuentzel, Katharina Thiedig, Melissa Schwab, Oliver Schilling, Holger Bronger, Marion Kiechle, Viktor Magdolen, Tobias Dreyer   +13 more
wiley   +1 more source

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

Molecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu, Xixi Lin, Emil Mladenov, Veronika Mladenova, Jürgen Thomale, Ali Sak, Yao Wang, Yunxuan Deng, Eleni Gkika, Martin Stuschke, George Iliakis   +10 more
wiley   +1 more source

Sports Participation Promotes Beneficial Adaptations in the Erythrocyte Guanylate Nucleotide Pool in Male Athletes Aged 20–90 Years

Clinical Interventions in Aging, 2023
Barbara Pospieszna,1 Krzysztof Kusy,1 Ewa Maria Slominska,2 Monika Ciekot-Sołtysiak,1 Jacek Zieliński1 1Department of Athletics, Strength and Conditioning, Poznan University of Physical Education, Poznan, Poland; 2Department of Biochemistry,
Pospieszna B, Kusy K, Slominska EM, Ciekot-Sołtysiak M, Zieliński J   +4 more
doaj  

Guanine nucleotides stimulate soluble phosphoinositide-specific phospholipase C in the absence of membranes

, 1986
The effect of guanine nucleotides on platelet and calf brain cytosolic phospholipase C was examined in the absence of membranes or detergents in an assay using labeled lipid vesicles. Guanine nucleotides stimulate hydrolysis of [3H]phosphatidylinositol 4,
Deckmyn, Hans, Tu, S.M., Majerus, P.W.
core   +1 more source

YIPFα1A expression is regulated by multilayered molecular mechanisms

FEBS Open Bio, EarlyView.
YIPFα1A, a five‐pass Golgi protein, is regulated at multiple layers. (1) Rare‐codon enrichment drives translation‐coupled mRNA decay. (2) A proximal 3′‐UTR element stabilizes mRNA. (3) A distal 3′‐UTR element included by alternate poly(A) site usage represses translation, which can be overridden by the proximal 3′‐UTR element.
Tokio Takaji, Yurika Nakanishi, Nobuhiro Nakamura   +2 more
wiley   +1 more source

Live-cell analysis of IMPDH protein levels during yeast colony growth provides insights into the regulation of GTP synthesis

mBio
The purine nucleotides ATP and GTP are made from the common precursor inosine monophosphate (IMP). Maintaining the correct balance of these nucleotides for optimal cell growth is controlled in part by the enzyme IMP dehydrogenase (IMPDH), which catalyzes
Erica L. Shand, Kieran Sweeney, Kaitlin E. Sundling, Megan N. McClean, David A. Brow   +4 more
doaj   +1 more source

Guanine nucleotides in the meiotic maturation of starfish oocytes: regulation of the actin cytoskeleton and of Ca(2+) signaling. [PDF]

PLoS ONE, 2009
BACKGROUND:Starfish oocytes are arrested at the first prophase of meiosis until they are stimulated by 1-methyladenine (1-MA). The two most immediate responses to the maturation-inducing hormone are the quick release of intracellular Ca(2+) and the ...
Keiichiro Kyozuka, Jong T Chun, Agostina Puppo, Gianni Gragnaniello, Ezio Garante, Luigia Santella   +5 more
doaj   +1 more source

Guanine nucleotides modulate the binding affinity of the oligopeptide chemoattractant receptor on human polymorphonuclear leukocytes.

, 1983
A B S T R A C T The oligopeptide chemoattractant receptor on human polymorphonuclear leukocyte (PMN) membranes exists in two affinity states. Since guanine nucleotides regulate the binding affinity and transductional activity of several other types of ...
C Koo, R J Lefkowitz, R Snyderman
core   +1 more source

Guanine nucleotides reduce the free calcium requirement for secretion of granule constituents from permeabilized human neutrophils [PDF]

, 1986
Human neutrophils can be permeabilized with the cholesterol complexing agent digitonin and then induced to secrete lysosomal constituents by increases in free Ca2+ alone.
Smolen, James E., Stoehr, Sally Jo
core   +1 more source