12 research outputs found
Avaliação de compostos orgânicos em plantas de videiras jovens.
Este trabalho tem como objetivo avaliar o efeito de diferentes formas de misturas de compostos orgânicos sobre a cultura da videira
Mitigação da fitotoxicidade do cobre na videira através do uso da parte aérea de plantas de cobertura.
O objetivo deste trabalho foi avaliar a influência da decomposição da parte aérea de plantas de cobertura na mitigação da fitotoxicidade do cobre na videira
Adsorção de cobre em solos da Serra Gaúcha e da Campanha.
Objetivou-se, com este trabalho, verificar se a concentração de cobre (Cu) no solo tem influência na sua capacidade de adsorver esse elemento
Efeito do gesso agrícola na produção de massa seca de aveia em solo contaminado por cobre.
O objetivo deste trabalho foi avaliar o efeito de diferentes níveis de gesso agrícola em solos contaminados com Cu, nos teores de massa seca de aveia (Avena sativa), principal planta utilizada na cobertura em cultivos de videira
Application of a synthetic ferredoxin‐inspired [4Fe4S]‐peptide maquette as the redox partner for a [FeFe]‐hydrogenase
‘Bacterial-type’ ferredoxins host a cubane [4Fe4S]2+/+ cluster that enables these proteins to mediate electron transfer and facilitate a broad range of biological processes. Peptide maquettes based on the conserved cluster-forming motif have previously been reported and used to model the ferredoxins. Herein we explore the integration of a [4Fe4S]-peptide maquette into a H2-powered electron transport chain. While routinely formed under anaerobic conditions, we illustrate by electron paramagnetic resonance (EPR) analysis that these maquettes can be reconstituted under aerobic conditions by using photoactivated NADH to reduce the cluster at 240 K. Attempts to tune the redox properties of the iron-sulfur cluster by introducing an Fe-coordinating selenocysteine residue were also explored. To demonstrate the integration of these artificial metalloproteins into a semi-synthetic electron transport chain, we utilize a ferredoxin-inspired [4Fe4S]-peptide maquette as the redox partner in the hydrogenase-mediated oxidation of H2.</p
Supplementary information files for Application of a synthetic ferredoxin‐inspired [4Fe4S]‐peptide maquette as the redox partner for a [FeFe]‐hydrogenase
Supplementrary files for article Application of a synthetic ferredoxin‐inspired [4Fe4S]‐peptide maquette as the redox partner for a [FeFe]‐hydrogenase
‘Bacterial-type’ ferredoxins host a cubane [4Fe4S]2+/+ cluster that enables these proteins to mediate electron transfer and facilitate a broad range of biological processes. Peptide maquettes based on the conserved cluster-forming motif have previously been reported and used to model the ferredoxins. Herein we explore the integration of a [4Fe4S]-peptide maquette into a H2-powered electron transport chain. While routinely formed under anaerobic conditions, we illustrate by electron paramagnetic resonance (EPR) analysis that these maquettes can be reconstituted under aerobic conditions by using photoactivated NADH to reduce the cluster at 240 K. Attempts to tune the redox properties of the iron-sulfur cluster by introducing an Fe-coordinating selenocysteine residue were also explored. To demonstrate the integration of these artificial metalloproteins into a semi-synthetic electron transport chain, we utilize a ferredoxin-inspired [4Fe4S]-peptide maquette as the redox partner in the hydrogenase-mediated oxidation of H2. </p