Results 41 to 50 of about 7,497 (290)

Periplasmic nitrate reductases: structural and spectroscopic studies [PDF]

, 2006
Dissertação apresentada para obtenção do grau de Doutor em Bioquímica, especialidade Bioquímica-Física, pela Faculdade de Ciências e Tecnologia da Universidade Nova de LisboaNitrate reduction occurs in the cell in order to incorporate nitrogen into ...
Javier Gonzalez, Pablo
core  

Look on the positive side! The orientation, identification and bioenergetics of 'Archaeal' membrane-bound nitrate reductases

, 2007
Many species of Bacteria and Archaea respire nitrate using a molybdenum-dependent membrane-bound respiratory system called Nar. Classically, the ‘Bacterial’ Nar system is oriented such that nitrate reduction takes place on the inside of this membrane ...
Bonete, Maria J., Sargent, Frank, David J. Richardson, Elizabeth J. Dridge, Richardson, David J., Rosa Maria Martinez-Espinosa, Bonete, Mari­a J., Maria J. Bonete, Julea N. Butt, Butler, Clive S., Clive S. Butler, Martinez-Espinosa, Rosa María, Dridge, Elizabeth J., Frank Sargent, Butt, Julea N.   +14 more
core   +1 more source

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

Advanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti, Valerio Di Lisio, Lucia Cardo, Alessandro Camilli, Estela Moretón Alfonsín, Daniele Cangialosi, Amaia Iturrospe Ibarra, Arantxa Arbe, Maurizio Prato   +8 more
wiley   +1 more source

Mechanism‐Driven Nanoformulations for Cognitive Impairment Induced by Intermittent Hypoxia and Periodontitis

Advanced Materials, EarlyView.
Clinically, intermittent hypoxia (IH) is often accompanied by periodontitis, which accelerates cognitive impairment induced by IH. Novel Janus mesoporous gold‐silica nanoformulations (RVG‐Au&mSiO2‐TPP‐VB) enable intranasal delivery, achieve hierarchical targeting to neuronal mitochondria, effectively scavenge reactive oxygen species, inhibit the HIF‐1α/
Kai‐Run Zhang, Tianbao Zhu, An‐Qi Liu, Jia‐Jia Deng, Ya‐Li Han, Sheng‐Cai Qi, Xue Liu, Tian‐Yi Jiang, Ming‐Rui Zhai, Yu‐Ying He, Xiu‐Juan Li, Hong‐Ting Da, Rui Xu, Xiaomin Li, Jun Gao, Yue‐Hua Liu   +15 more
wiley   +1 more source

Nitrogen Starvation Acclimation in Synechococcus elongatus: Redox-Control and the Role of Nitrate Reduction as an Electron Sink

Life, 2015
Nitrogen starvation acclimation in non-diazotrophic cyanobacteria is characterized by a process termed chlorosis, where the light harvesting pigments are degraded and the cells gradually tune down photosynthetic and metabolic activities.
Alexander Klotz, Edgar Reinhold, Sofía Doello, Karl Forchhammer   +3 more
doaj   +1 more source

In Silico Analysis of the Enzymes Involved in Haloarchaeal Denitrification

Biomolecules, 2021
During the last century, anthropogenic activities such as fertilization have led to an increase in pollution in many ecosystems by nitrogen compounds. Consequently, researchers aim to reduce nitrogen pollutants following different strategies.
Eric Bernabeu, Jose María Miralles-Robledillo, Micaela Giani, Elena Valdés, Rosa María Martínez-Espinosa, Carmen Pire   +5 more
doaj   +1 more source

Formation of active heterologous nitrate reductases between nitrate reductases A and Z of Escherichia coli

, 1992
Two nitrate reductases, NRA and NRZ, are present in Escherichia coli. These isoenzymes have the same αβγ, subunits composition and have similar size and genetic organization. Corresponding subunits of the complexes share at least 75% Identity.
F. Nunzi, J. Pommier, R. Brasseur, Pommier, Janine, Nunzi, Frédéric, G. Giordano, Giordano, Gérard, F. Blasco, M. Chippaux, Blasco, Francis, Chippaux, Marc, Brasseur, Robert   +11 more
core   +1 more source

Natural Products Inspired Scaffold Diversification Leads to Unnatural Molecular Warhead and Covalent Strategy to Modulating Protein Function through Electrophilic Bromine Transfer

Advanced Science, EarlyView.
We report a new thiolate‐reactive α,α‐gem‐dibromo lactam warhead that activates transcription factor Nrf2 and demonstrates anti‐inflammatory activities, which have implications in cancer, neurodegeneration, and cardiovascular diseases. RNA‐seq illuminated detailed transcriptional profiles, and chemical reactions with cysteine‐containing compounds ...
Beau R. Brummel, Sofia Kokkaliari, Qiwen Gao, Jinjing Chen, Larissa Costa de Almeida, Srinivasarao Tenneti, Derek A. Leas, Eli Levit, Lewis S. Alexander, Khalil A. Abboud, Pingrong Wei, Michael D. Cameron, James R. Rocca, Ranjala Ratnayake, Donna D. Zhang, Hendrik Luesch, Robert W. Huigens III   +16 more
wiley   +1 more source

The genome of the insecticidal Chromobacterium subtsugae PRAA4-1 and its comparison with that of Chromobacterium violaceum ATCC 12472

Genomics Data, 2016
The genome of Chromobacterium subtsugae strain PRAA4-1, a betaproteobacterium producing insecticidal compounds, was sequenced and compared with the genome of C. violaceum ATCC 12472. The genome of C.
Michael B. Blackburn, Michael E. Sparks, Dawn E. Gundersen-Rindal   +2 more
doaj   +1 more source

Effect of pH on the denitrification proteome of the soil bacterium Paracoccus denitrificans PD1222

Scientific Reports, 2021
Denitrification is a respiratory process by which nitrate is reduced to dinitrogen. Incomplete denitrification results in the emission of the greenhouse gas nitrous oxide and this is potentiated in acidic soils, which display reduced denitrification ...
Alfonso Olaya-Abril, Jesús Hidalgo-Carrillo, Víctor M. Luque-Almagro, Carlos Fuentes-Almagro, Francisco J. Urbano, Conrado Moreno-Vivián, David J. Richardson, María Dolores Roldán   +7 more
doaj   +1 more source