Results 41 to 50 of about 379,319 (234)

Molecular, Enzymatic, and Cellular Characterization of Soluble Adenylyl Cyclase From Aquatic Animals. [PDF]

, 2018
The enzyme soluble adenylyl cyclase (sAC) is the most recently identified source of the messenger molecule cyclic adenosine monophosphate. sAC is evolutionarily conserved from cyanobacteria to human, is directly stimulated by [Formula: see text] ions ...
Acin-Perez, Barott, Barott, Barott, Beltrán, Berthelot, Bitterman, Bordeaux, Braun, Braun, Braun, Buck, Camacho Londoño, Chaloupka, Chen, Chen, Cooper, De Rasmo, Di Benedetto, Elliott, Farrell, Geng, Goldberg, Gordeladze, Hess, Hrdlickova, Jaiswal, Kobayashi, Leparc, Levin, Litvin, Magro, Neer, Neer, Nomura, Nomura, Ramos-Espiritu, Roa, Roa, Roa, Salem, Salomon, Schwencke, Steegborn, Steegborn, Stessin, Structural Genomics Consortium, Tresguerres, Tresguerres, Tresguerres, Tresguerres, Tresguerres, Wilson, Yeo, Zaccolo, Zippin, Zippin, Zippin, Zippin   +58 more
core   +2 more sources

The subcellular distribution of phosphorylated Y‐box‐binding protein‐1 at S102 in colorectal cancer patients, stratified by KRAS mutational status and clinicopathological features

Molecular Oncology, EarlyView.
This study identifies nuclear YB‐1 S102 phosphorylation as a marker associated with KRAS and FBXW7 mutations in colorectal cancer. Mutated KRAS correlates specifically with nuclear, not cytoplasmic, S102 YB‐1. These findings provide the first ex vivo evidence of this link in CRC and suggest future studies should assess the prognostic and therapeutic ...
Konstanze Lettau, Stephan Forchhammer, Birgit Fehrenbacher, Lejla Mahmutovic, Marcus Scharpf, Gunnar Blumenstock, Martin Schaller, Irina Bonzheim, Shayan Khozooei, Mahmoud Toulany   +9 more
wiley   +1 more source

The Origin of Life: Models and Data. [PDF]

, 2017
A general framework for conventional models of the origin of life (OOL) is the specification of a 'privileged function.' A privileged function is an extant biological function that is excised from its biological context, elevated in importance over other
Lanier, Kathryn A, Williams, Loren Dean
core   +1 more source

RNA Conformation in Catalytically Active Human Telomerase [PDF]

Journal of the American Chemical Society, 2010
We have used single-molecule fluorescence microscopy to study the folded state of human telomerase RNA (hTR). Here we show that hTR adopts a new conformation on binding to human telomerase reverse transcriptase (hTERT) and reconstitution of an active ribonucleoprotein complex.
David Klenerman, Beth Ashbridge, Justin A. Yeoman, Angel Orte, Shankar Balasubramanian   +4 more
openaire   +3 more sources

METTL3 knockout accelerates hepatocarcinogenesis via inhibiting endoplasmic reticulum stress response

FEBS Open Bio, EarlyView.
Liver‐specific knockout of N6‐methyladenosine (m6A) methyltransferase METTL3 significantly accelerated hepatic tumor initiation under various oncogenic challenges, contrary to the previously reported oncogenic role of METTL3 in liver cancer cell lines or xenograft models. Mechanistically, METTL3 deficiency reduced m6A deposition on Manf transcripts and
Bo Cui, Silin Tu, Haibo Li, Zhancheng Zeng, Ruiqi Xiao, Jing Guo, Xiaoqi Liang, Chang Liu, Lijie Pan, Wenjie Chen, Mian Ge, Xiaofen Zhong, Linsen Ye, Huaxin Chen, Qi Zhang, Yan Xu   +15 more
wiley   +1 more source

Role of the Bifunctional Aminoacyl-tRNA Synthetase EPRS in Human Disease [PDF]

, 2020
Aminoacyl-tRNA synthetases (AARS) are a class of enzymes that catalyze the charging of tRNAs with cognate amino acids, a critical step that contributes to the fidelity of protein synthesis.
Kudlapur, Nathan
core  

Molecular Mechanism of DNA Topoisomerase I-Dependent rDNA Silencing: Sir2p Recruitment at Ribosomal Genes [PDF]

, 2016
Saccharomyces cerevisiae sir2Δ or top1Δ mutants exhibit similar phenotypes involving ribosomal DNA, including (i) loss of transcriptional silencing, resulting in non-coding RNA hyperproduction from cryptic RNA polymerase II promoters; (ii) alterations ...
Bjornsti, Mary Ann, Camilloni, Giorgio, Carlini, Valentina, D'Alfonso, Anna, DI FELICE, Francesca, Hertz, Marla I, Wright, Christine M   +6 more
core   +1 more source

Evolution of catalytic rna in the laboratory [PDF]

Origins of life and evolution of the biosphere, 1989
We are interested in the biochemistry of existing RNA enzymes and in the development of RNA enzymes with novel catalytic function. The focal point of our research program has been the design and operation of a laboratory system for the controlled evolution of catalytic RNA.
openaire   +2 more sources

Iron‐dependent lysosomal LDL oxidation induces the expression of scavenger receptor A in human THP‐1 monocytes

FEBS Open Bio, EarlyView.
In human monocytic cells THP‐1, a limited uptake of native—not oxidized—LDL/VLDL induced expression of scavenger receptor A and cellular adhesion. Induction was inhibited by lysosomotropic (WR‐1065) and lipophilic (BHT) antioxidants and by siRNAs against ferritinophagy.
Martina Čierna, Richard Buchal, Martin Leníček, Amit Shachak, Jan Pláteník   +4 more
wiley   +1 more source

Error thresholds for self- and cross-specific enzymatic replication [PDF]

, 2010
The information content of a non-enzymatic self-replicator is limited by Eigen's error threshold. Presumably, enzymatic replication can maintain higher complexity, but in a competitive environment such a replicator is faced with two problems related to ...
Acevedo, Alves, Baake, Benedikt Obermayer, Blythe, Campos, Cech, de Oliveira, Doudna, Eigen, Eigen, Erwin Frey, Fernando, Fontanari, Galluccio, Gerland, Gilbert, Hermisson, Huynen, Johnston, Joyce, Komarova, Kun, Leuthäusser, Lilley, Lincoln, Lässig, Maynard Smith, Michod, Nowak, Obermayer, Orgel, Orgel, Pace, Peliti, Rajamani, Rawlings, Saakian, Saakian, Schuster, Stadler, Stadler, Summers, Swetina, Szathmáry, Szostak, Takeuchi, Takeuchi, von Kiedrowski, Wagner, Weiner, Wiehe, Wilke, Wilke, Woodcock, Wu, Zaher   +56 more
core   +4 more sources