Results 81 to 90 of about 3,130,255 (294)

The competitive inhibition of of the urease-catalyzed hydrolysis of urea by phosphate [PDF]

, 1949
The urease-catalyzed hydrolysis of urea has been found to be competitively inhibited by phosphate at pH 7.0 and 25°. The Michaelis constant of the urea-urease system has been found to be approximately 0.003 M urea and the comparable constant defining the
Harmon, Kent M., Niemann, Carl
core  

Calcium Carbonate Suppresses Haem Toxicity Markers without Calcium Phosphate Side Effect on Colon Carcinogenesis [PDF]

, 2010
Red meat intake is associated with increased risk of colorectal cancer. We have previously shown that haemin, haemoglobin and red meat promote carcinogen-induced preneoplastic lesions, aberrant crypt foci, in the colon of rats.
Belbraouet, Bruce, Bull, Cross, Denis E. Corpet, Diane Bahuaud, Fabrice H. F. Pierre, Karkare, Nathalie Naud, Ossama Allam, Pierre, Sesink, Sinha, Sylviane Taché, Van den Berg   +14 more
core   +5 more sources

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Influence of Organic Impurities on Fractional Crystallization of NaCl and Na₂SO₄ from High-Salinity Coal Chemical Wastewater: Thermodynamics and Nucleation Kinetics Analysis

Molecules
It is a valid path to realize the zero discharge of coal chemical wastewater by using the fractional crystallization method to recycle the miscellaneous salt in high-salinity wastewater. In this study, the thermodynamics and nucleation kinetics of sodium
Bo Shen, Bo Zhao, Hai Du, Yongsheng Ren, Jianwei Tang, Yong Liu, Quanxian Hua, Baoming Wang   +7 more
doaj   +1 more source

Adsorption of phosphate from domestic wastewater treatment plant effluent onto the laterites in a hydrodynamic column [PDF]

, 2014
High concentration of phosphate ...
Fulazzaky, Mohamad Ali, Khamidun, Mohd Hairul, Md Din, Mohd Fadhil, Mohd Yusoff, Abdull Rahim   +3 more
core   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Study on the stability of iron tailings dam improved by curing agent

Frontiers in Earth Science
Fine-grained tailings exhibit poor permeability, prolonged consolidation time, low mechanical strength, and difficulty in dissipating excess pore water pressure.
Shujian Li, Guangjin Wang, Menglai Wang, Menglai Wang, Xidong Du, Bing Zhao, Jun You, Yuanting Zhu, Zhanglong Pu, Jiantao Pang, Rong Lan, Mingsheng Liu   +11 more
doaj   +1 more source

Continuous enzyme-coupled assay of phosphate- or pyrophosphate-releasing enzymes

BioTechniques, 2012
A coupled enzyme assay able to monitor the kinetics of reactions catalyzed by phosphate- or pyrophosphate-releasing enzymes is presented here.
Antonio S. Guillén Suárez, Alessandra Stefan, Silvia Lemma, Emanuele Conte, Alejandro Hochkoeppler   +4 more
doaj   +1 more source

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

Molecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed, Kerstin Huebner, Katharina Erlenbach‐Wuensch, Chuanpit Hampel, Daniela Thalheim, Adriana Vial‐Roehe, Bodee Nutho, Susanne Merkel, Arndt Hartmann, Pithi Chanvorachote, Regine Schneider‐Stock   +10 more
wiley   +1 more source

From Zn to Mn: the study of novel manganese-binding groups in the search for new drugs against tuberculosis. [PDF]

, 2011
In most eubacteria, apicomplexans, and most plants, including the causal agents for diseases such as malaria, leprosy, and tuberculosis, the methylerythritol phosphate pathway is the route for the biosynthesis of the C(5) precursors to the essential ...
de Oliveira, César Augusto F, McCammon, J Andrew, Vazquez, H, Williams, Sarah L   +3 more
core   +2 more sources