Results 61 to 70 of about 3,076 (182)

Sentence Specified Dynamic Video Thumbnail Generation [PDF]

ACM Multimedia 2019, 2019
With the tremendous growth of videos over the Internet, video thumbnails, providing video content previews, are becoming increasingly crucial to influencing users' online searching experiences. Conventional video thumbnails are generated once purely based on the visual characteristics of videos, and then displayed as requested.
arxiv   +1 more source

Mobility of Taxol in Microtubule Bundles [PDF]

Biophys. J. 2003 84: 3959-3967, 2003
Mobility of taxol inside microtubules was investigated using fluorescence recovery after photobleaching (FRAP) on flow-aligned bundles. Bundles were made of microtubules with either GMPCPP or GTP at the exchangeable site on the tubulin dimer. Recovery times were sensitive to bundle thickness and packing, indicating that taxol molecules are able to move
arxiv   +1 more source

Untersuchungen zur Rolle der Phosphoenolpyruvat-Carboxykinase und des NADP+-Malat-Enzyms in der filamentösen Phaeophycee Ectocarpus siliculosus [PDF]

, 2003
In der filamentösen Braunalge Ectocarpus siliculosus liegen die Enzyme Phosphoenolpyruvat-Carboxykinase (PEPCK) und das NADP+-Malat-Enzym in hohen Aktivitäten vor. Die Beteiligung beider Enzyme an einem für die Alge vorgeschlagenen C4/CAM-
Busch, Sylvia, Galland, Paul (Prof. Dr.)
core   +1 more source

Vanadate inhibits expression of the gene for phosphoenolpyruvate carboxykinase (GTP) in rat hepatoma cells.

Journal of Biological Chemistry, 1990
Vanadate, at concentrations between 0.5 and 2 mM, rapidly decreased the basal level of P-enolpyruvate carboxykinase (GTP) (EC 4.1.1.32) mRNA and blocked the dibutyryl cyclic AMP (Bt2cAMP)-induced increase in enzyme mRNA in both FTO-2B and H4IIE rat hepatoma cells.
Bosch i Tubert, Fàtima, Hatzoglou, Maria, Park, Edwards A., Hanson, Richard W.   +3 more
openaire   +4 more sources

Non-equilibrium self-assembly of a filament coupled to ATP/GTP hydrolysis [PDF]

Biophys. J., 96, 2146 (2009), 2008
We study the stochastic dynamics of growth and shrinkage of single actin filaments or microtubules taking into account insertion, removal, and ATP/GTP hydrolysis of subunits. The resulting phase diagram contains three different phases: a rapidly growing phase, an intermediate phase and a bound phase. We analyze all these phases, with an emphasis on the
arxiv   +1 more source

Phosphoenolpyruvate Carboxykinase Assayed at Physiological Concentrations of Metal Ions Has a High Affinity for CO2 [PDF]

, 2002
The effect of Mn2+/Mg2+ concentration on the activity of intact, homogeneous phosphoenolpyruvate carboxykinase (PEPCK) from leaves of the C4 grass, Guinea grass (Panicum maximum), have been investigated.
Acheson, R.M., Chen, Z., Leegood, R.C., Walker, R.P.   +3 more
core   +1 more source

FAHD1 and mitochondrial metabolism: a decade of pioneering discoveries

The FEBS Journal, EarlyView.
This paper reviews a decade of research on FAHD1, an important yet underappreciated enzyme in mitochondrial metabolism. FAHD1 plays a crucial role in energy production, oxidative stress regulation, and processes related to aging and overall health.
Elia Cappuccio, Max Holzknecht, Michèle Petit, Anne Heberle, Yana Rytchenko, Athanasios Seretis, Ciro L. Pierri, Hubert Gstach, Pidder Jansen‐Dürr, Alexander K. H. Weiss   +9 more
wiley   +1 more source

c.A2456C-substitution in Pck1 changes the enzyme kinetic and functional properties modifying fat distribution in pigs [PDF]

, 2016
Cytosolic phosphoenolpyruvate carboxykinase, PCK1, is one of the main regulatory enzymes of gluconeogenesis and glyceroneogenesis. The substitution of a single amino acid (Met139Leu) in PCK1 as a consequence of a single nucleotide polymorphism (SNP), c ...
Burgos, C, Carrodeguas, JA, Hidalgo, J, Latorre, P, López-Buesa, P, Varona, L   +5 more
core   +1 more source

The Role of the CCAAT/Enhancer-Binding Protein in the Transcriptional Regulation of the Gene for Phosphoenolpyruvate Carboxykinase (GTP) [PDF]

Molecular and Cellular Biology, 1990
Previous studies have identified a region in the promoter of the gene for phosphoenolpyruvate carboxykinase (GTP) (PEPCK) (positions -460 to +73) containing the regulatory elements which respond to cyclic AMP, glucocorticoids, and insulin and confer the tissue- and developmental stage-specific properties to the gene.
Jinsong Liu, Edwards A. Park, William J. Roesler, Austin L. Gurney, Alan D. Friedman, Jack D. Thatcher, Dwight J. Klemm, Richard W. Hanson, Jon Shuman   +8 more
openaire   +3 more sources

Aluminum Fluorides as Noncovalent Lewis Acids in Proteins: The Case of Phosphoryl Transfer Enzymes

ChemPlusChem, Volume 90, Issue 1, January 2025.
The abundance, directionality and energetic features of O ⋅ ⋅ ⋅ Al Triel Bonds in biological systems have been studied herein combining a search in the PDB (Protein Data Bank) with Quantum Mechanics calculations at the PBE0‐D3/def2‐TZVPD level of theory. Results indicate the noncovalent and attractive nature of the interaction, being important to fully
Sergi Burguera, Lenin Vidal, Antonio Bauzá   +2 more
wiley   +1 more source