Results 61 to 70 of about 73,799 (301)

GTP-Dependent Regulation of CTP Synthase: Evolving Insights into Allosteric Activation and NH₃ Translocation

Biomolecules, 2022
Cytidine-5′-triphosphate (CTP) synthase (CTPS) is the class I glutamine-dependent amidotransferase (GAT) that catalyzes the last step in the de novo biosynthesis of CTP.
Stephen L. Bearne, Chen-Jun Guo, Ji-Long Liu   +2 more
doaj   +1 more source

An Allele of Glutamate Formiminotransferase Triggers 5‐Methyl‐Tetrahydrofolate‐to‐MeFox Conversion and Facilitates Folate Biofortification in Maize

Advanced Science, EarlyView.
This work demonstrates the distinct roles of the glutamate formiminotransferase (GFT) enzyme in plants. The GFT triggers the conversion of 5‐methyl‐tetrahydrofolate to MeFox in plants, a process distinct from its role as a formiminotransferase in mammals.
Tong Lian, Wenzhu Guo, Yanjing Wang, Weiwei Wen, Weixuan Wang, Ling Jiang, Qiuju Liang, Ji'an Liu, Haijun Liu, Yuan Xue, Lixu Pan, Qiaoquan Liu, Ping Yin, Delin Zhang, Jianbing Yan, Chunyi Zhang   +15 more
wiley   +1 more source

Revisiting the microtubule based quantum models of mind: tubulin bound GTP cannot pump microtubule coherence or provide energy for alpha <-> beta computation in stable microtubules [PDF]

, 2003
The current paper investigates the biological models of stable brain microtubules as quantum or classical computers whose function is based on electron hopping associated with kinking of the tubulin dimer. Hameroff (1998a, 1998b, 2003a, 2003b), Tuszynski
Georgiev, Danko
core  

The role of free nucleotides in heart failure

Кардиоваскулярная терапия и профилактика
Aim. To assess the potential of studying the plasma level of free nucleotides as additional biomarkers of heart failure (HF) taking into account the clinical and paraclinical data of the patient, and to analyze its change during therapy.Material and ...
E. V. Kolesnikova, O. V. Myachina, A. N. Pashkov, A. A. Pashkova   +3 more
doaj   +1 more source

Epigenetic Regulation of DAPK1 and Netrin‐1 Drives Diabetic Encephalopathy

Advanced Science, EarlyView.
This study identifies a microRNA (miR)‐216a‐5p/death‐associated protein kinase 1 (DAPK1)/hepatocyte nuclear factor 1 homeobox A (HNF1A)/Netrin‐1 signaling axis in diabetic encephalopathy (DE). In leptin receptor‐deficient (db/db) and streptozotocin (STZ)‐induced diabetic mice, reduced miR‐216a‐5p increases DAPK1 expression, disrupting HNF1A binding to ...
Yang Zhou, Jia‐Xin Kou, Kai Zheng, Zi‐Xuan Guo, Hong‐Wei Fan, Wen‐Lian Li, Lu‐Lu Chu, Jing‐Wen Yin, Li‐Jie Liu, Nadezhda Brazhe, Zhi‐Gao Xiang, Feng Hu, Kai Shu, Ling‐Qiang Zhu, Dan Liu   +14 more
wiley   +1 more source

Control of Nucleotide Metabolism and Ribosomal Ribonucleic Acid Synthesis During Nitrogen Starvation of \u3cem\u3eEscherichia coli\u3c/em\u3e [PDF]

, 1972
Ribosomal ribonucleic acid (RNA) synthesis and ribonucleoside triphosphate metabolism were studied in cultures of Escherichia coli subjected to starvation for inorganic nitrogen.
Irr, Joseph D.
core   +1 more source

STING COPII ER Export Trafficking and Signaling Primed by Phosphorylation Switches

Advanced Science, EarlyView.
This schematic outlines STING trafficking and signaling via coat protein II (COPII)‐mediated endoplasmic reticulum (ER) export. Following cyclic GMP‐AMP (cGAMP) stimulation, TANK‐binding kinase 1 (TBK1) activates on COPII vesicles, partially dissociating into the cytosol to phosphorylate ER‐localized STING, creating pSGME/pFS COPII‐sorting motifs ...
Yanan Nan, Dongxiao Cui, Jiajian Guo, Xiaojing Ma, Jiaming Wang, Linyue Guo, Tianyu Li, Mingrui Yang, Guangrui Huang, Anlong Xu, Wenfu Ma   +10 more
wiley   +1 more source

A Longitudinal Study Reveals Metabolomic Markers for Individuals at Risk, Disease Severity, and Treatment Response in Rheumatoid Arthritis

Advanced Science, EarlyView.
This study investigates plasma metabolomic biomarkers for rheumatoid arthritis (RA) development using longitudinal data from 209 RA patients and 56 individuals at risk. It also reveals metabolic signatures linked to severity, age, sex, and anti‐citrullinated protein autoantibody in RA.
Chenxi Zhu, Jiayi Xu, Siyu He, Qian Niu, Yi Liu, Xin Guo, Huifang Hu, Rui Sun, Tao Chen, Yan Liu, Zhiqiang Xu, Na Jiang, Lipu Yao, Lunzhi Dai, Qinghua Zou, Fanxin Zeng, Liesu Meng, Inger Gjertsson, Rikard Holmdahl, Bin Yang, Dan Du, Yi Zhao   +21 more
wiley   +1 more source

Light-driven artificial enzymes for selective oxidation of guanosine triphosphate using water-soluble POSS network polymers. [PDF]

, 2014
Accepted 25 Jun 2014.The light-driven artificial enzymes were constructed to realize unnatural reactions concerning bio-significant molecules. In this manuscript, the guanosine triphosphate (GTP)-selective oxidation is reported using the network polymers
Chujo, Yoshiki, Jeon, Jong-Hwan, Tanaka, Kazuo   +2 more
core   +1 more source

Structural Insights into the Regulation Mechanism of Small GTPases by GEFs

Molecules, 2019
Small GTPases are key regulators of cellular events, and their dysfunction causes many types of cancer. They serve as molecular switches by cycling between inactive guanosine diphosphate (GDP)-bound and active guanosine triphosphate (GTP)-bound states ...
Sachiko Toma-Fukai, Toshiyuki Shimizu
doaj   +1 more source