Results 61 to 70 of about 68,942 (307)
15N relaxation and quantification of 15N-labelled metabolites in cell extracts
Comptes Rendus. Chimie, 2005 15 N is useful for studying nitrogen metabolism by isotope labelling. However, the 15 N NMR analysis is hampered by negative nOe factors and sometimes long T 1 values.
Nassima Houyou +2 more
openaire +1 more source
Utilização de isótopos estáveis de 13C e 15N na identificação de bacalhau Gadus e outras espécies de peixes salgados secos [PDF]
, 2012 O Brasil é dos países líderes na importação de peixes salgados e secos. Em 2008, importou da Noruega cerca de 30 mil toneladas destes produtos, a um custo de aproximadamente 190 milhões de dólares.
Lima, Emanuel Joaquim Victória Monteiro Oliveira
core
Enhancing Biogenic Formic Acid Production in the Modified OxFA Process by Acetonitrile Addition
Advanced Science, EarlyView.In this study, the beneficial effect of using acetonitrile as a co‐solvent in the modified OxFA process is shown, outperforming methanol, demonstrating improved reaction kinetics combined with high selectivity for the HPA‐2 (H5PV2Mo10O40) catalyzed oxidation of xylose to FA.
Jan‐Dominik H. Krueger +7 more
wiley +1 more source
Angewandte Chemie, EarlyView.Hsf1 undergoes phase separation around target DNA, activating stress‐responsive transcription. DNA binding tunes conformational dynamics of Hsf1DBD, which propagates through large‐scale domain rearrangements involving DBD–IDR interactions to regulate phase separation. This hierarchical framework illustrates how local structural events at the side chain
Soichiro Kawagoe +2 more
wiley +2 more sources
The photodisintegration of 15N
Physics Letters B, 1970 Abstract The photodisintegration of 15N is examined within the framework of shell-model calculations. The result is in qualitative agreement with experimental data.
openaire +1 more source
Advanced Science, EarlyView.Ubiquilin (UBQLN), like many other human proteins, contains both well‐folded and disordered regions. Here, we show that intramolecular interactions between disordered regions and folded domains modulate between open and closed topologies of UBQLN proteins, altering their structure and function.
Jessica K. Niblo +4 more
wiley +1 more source
Unlocking a Nitrosuccinate Lyase for Decarboxylative Enzymatic Hydronitration
Angewandte Chemie, EarlyView.The nitrosuccinate lyase CreD catalyzes C–NO2 bond formation using nitrite in water and shows synthetic practicality with high turnover numbers up to 102,000. A combination of protein engineering and computational methods helped to reveal the mechanistic principles that underpin this unique enzymatic activity.
Matteo Aleotti +9 more
wiley +2 more sources
Advanced Science, EarlyView.We demonstrate how oxygen‐deficient ruthenium oxide (RuOx) nanoparticles confined within covalent organic framework achieve highly efficient nitrate‐to‐ammonia conversion. Strong interaction between RuOx nanoparticles and COF results in modified interfacial hydrogen‐bond water network and adsorption of nitrogenous intermediates.
Yun Li +6 more
wiley +1 more source
A Non‐Covalent [4Fe–4S]/[2Fe] Interface in HydF Guides [FeFe]‐Hydrogenase Maturation
Angewandte Chemie, EarlyView.Bridged or not? 57Fe NRVS reveals a non‐covalent, electronically coupled interaction between the HydF [4Fe–4S] cluster and the [2Fe] precursor. Boltz‐2 structure predictions suggest that the cubane organizes lipoate‐dependent Hmet chemistry, positioning intermediates for assembly of the CH2–NH–CH2 bridge during H‐cluster biosynthesis.
Giorgio Caserta +6 more
wiley +2 more sources
Nitrogênio proveniente da adubação nitrogenada e de resíduos culturais na nutrição da cana-planta
Pesquisa Agropecuária Brasileira, 2011 O objetivo deste trabalho foi avaliar a recuperação, pela cana-planta, do nitrogênio (15N) proveniente da ureia e de resíduos culturais da palhada e do sistema radicular da cultura da cana (Saccharum spp.) incorporados ao solo.
André Cesar Vitti +6 more
doaj +1 more source