Results 101 to 110 of about 3,076 (182)

On the Krull dimension of rings of semialgebraic functions [PDF]

open access: yesarXiv, 2013
Let $R$ be a real closed field and let ${\mathcal S}(M)$ be the ring of (continuous) semialgebraic functions on a semialgebraic set $M\subset R^n$ and let ${\mathcal S}^*(M)$ be its subring of bounded semialgebraic functions. In this work we introduce the concept of \em semialgebraic depth \em of a prime ideal $\gtp$ of ${\mathcal S}(M)$ in order to ...
arxiv  

Kinetic Analysis of Protein Assembly on the Basis of the Center Manifold around the Critical Point [PDF]

open access: yesarXiv, 2015
Protein assembly plays an important role in the regulation of biological systems. The cytoskeleton assembly activity is provided by the binding cofactors GTP (guanidine triphosphate) or ATP(adenosine triphosphate) to monomeric protein, and is initiated by assembling the monomeric proteins.
arxiv  

Atypical Glycolysis in Clostridium Thermocellum [PDF]

open access: yes, 2013
Cofactor specificities of glycolytic enzymes in Clostridium thermocellum were studied with cellobiose-grown cells from batch cultures. Intracellular glucose was phosphorylated by glucokinase using GTP rather than ATP.
Argyros, D. Aaron   +6 more
core   +1 more source

GTP before ATP: The energy currency at the origin of genes [PDF]

open access: yesarXiv
Life is an exergonic chemical reaction. Many individual reactions in metabolism entail slightly endergonic processes that are coupled to free energy release, typically as ATP hydrolysis, in order to go forward. ATP is almost always supplied by the rotor-stator ATP synthetase (the ATPase), which harnesses chemiosmotic ion gradients.
arxiv  

Multiphasic interactions between nucleotides and target proteins [PDF]

open access: yesarXiv, 2016
The nucleotides guanosine tetraphosphate (ppGpp) and guanosine pentaphosphate (pppGpp) bind to target proteins to promote bacterial survival (Corrigan et al. 2016). Thus, the binding of the nucleotides to RsgA, a GTPase, inhibits the hydrolysis of GTP.
arxiv  

Effect of adeno-associated virus (AAV)-mediated overexpression of PEPCK-M (Pck2) on Clenbuterol-induced muscle growth [PDF]

open access: yes, 2019
We previously identified PEPCK-M (encoded by the Pck2 gene) to be highly up-regulated in skeletal muscle of pigs treated with Ractopamine, an anabolic beta-adrenergic receptor agonist.
Brameld, John M.   +7 more
core   +2 more sources

Rat hepatic cytosolic phosphoenolpyruvate carboxykinase (GTP). Structures of the protein, messenger RNA, and gene.

open access: yesJournal of Biological Chemistry, 1985
The primary structure of the messenger RNA coding for cytosolic phosphoenolpyruvate carboxykinase was determined by sequencing cDNA and genomic DNA and by primer extension of the mRNA. The molecule is 2624 nucleotides in length; this includes 143 nontranslated nucleotides at the 5' end and 615 nontranslated nucleotides at the 3' end.
R L Noble   +8 more
openaire   +3 more sources

EFFECT OF IN VIVO POLYBROMINATED DIPHENYL ETHER (PBDE) TREATMENT ON HEPATIC GLYCERONEOGENESIS AND LIPID METABOLISM [PDF]

open access: yes, 2015
Polybrominated diphenyl ethers (PBDEs) are flame-retardant chemicals that contaminate the environment. Through ingestion and inhalation, these chemicals get into the human body, where they affect the liver by suppressing the metabolic enzyme ...
Cowens, Kylie Rose
core   +2 more sources

Structure-Based Function Prediction of Functionally Unannotated Structures in the PDB: Prediction of ATP, GTP, Sialic Acid, Retinoic Acid and Heme-bound and -Unbound (Free) Nitric Oxide Protein Binding Sites [PDF]

open access: yesarXiv, 2015
Due to increased activity in high-throughput structural genomics efforts around the globe, there has been an accumulation of experimental protein 3D structures lacking functional annotation, thus creating a need for structure-based protein function assignment methods.
arxiv  

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