PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17514372-3 2008 Alternative or NDH-2-type NADH dehydrogenases are simple one subunit flavoenzymes that completely dissipate the redox energy of the NADH/quinone couple. quinone 137-144 DExH-box helicase 9 Homo sapiens 15-20 24447297-1 2014 Type II NADH-quinone oxidoreductase (NDH-2) catalyzes the transfer electrons from NADH to the quinone pool and plays an essential role in the oxidative phosphorylation system of Mycobacterium tuberculosis (Mtb). quinone 13-20 DExH-box helicase 9 Homo sapiens 37-42 24447297-3 2014 To fully establish the kinetic properties of this enzyme, we studied the interaction of Mtb NDH-2 with substrates, NADH, and various quinone analogues and their products in both membrane and soluble environments. quinone 133-140 DExH-box helicase 9 Homo sapiens 92-97 24447297-4 2014 These studies, and comparative analyses of the kinetics with thio-NAD(+) and quinone electron acceptors, provided evidence that Mtb NDH-2 catalyzes the transfer electrons from NADH to quinone substrates by a nonclassical, two-site ping-pong kinetic mechanism whereby substrate quinones bind to a site that is distinct from the NADH-binding site. quinone 77-84 DExH-box helicase 9 Homo sapiens 132-137 24447297-4 2014 These studies, and comparative analyses of the kinetics with thio-NAD(+) and quinone electron acceptors, provided evidence that Mtb NDH-2 catalyzes the transfer electrons from NADH to quinone substrates by a nonclassical, two-site ping-pong kinetic mechanism whereby substrate quinones bind to a site that is distinct from the NADH-binding site. quinone 184-191 DExH-box helicase 9 Homo sapiens 132-137 24447297-5 2014 Furthermore, the effects of quinols on Mtb NDH-2 catalytic activity demonstrate the presence of two binding sites for quinone ligands, one favoring the reduced form and the other favoring the oxidized form. quinone 118-125 DExH-box helicase 9 Homo sapiens 43-48 31880924-4 2020 Catalysis of both NADH oxidation and lipophilic quinone reduction by membrane-bound NDH-2 followed the Michaelis-Menten model; however, the maximum turnover was only achieved when a high concentration of quinone (>3 mM) was present in the membrane, suggesting that quinone availability regulates NADH-coupled respiration activity. quinone 48-55 DExH-box helicase 9 Homo sapiens 84-89 31880924-4 2020 Catalysis of both NADH oxidation and lipophilic quinone reduction by membrane-bound NDH-2 followed the Michaelis-Menten model; however, the maximum turnover was only achieved when a high concentration of quinone (>3 mM) was present in the membrane, suggesting that quinone availability regulates NADH-coupled respiration activity. quinone 204-211 DExH-box helicase 9 Homo sapiens 84-89 31880924-4 2020 Catalysis of both NADH oxidation and lipophilic quinone reduction by membrane-bound NDH-2 followed the Michaelis-Menten model; however, the maximum turnover was only achieved when a high concentration of quinone (>3 mM) was present in the membrane, suggesting that quinone availability regulates NADH-coupled respiration activity. quinone 204-211 DExH-box helicase 9 Homo sapiens 84-89 31880924-5 2020 The quinone analogue 2-heptyl-4-hydroxyquinoline-N-oxide inhibited C. thermarum NDH-2 activity, and its potency is higher in a membrane environment compared to assays performed with water-soluble quinone analogues, demonstrating the importance of testing compounds under physiologically relevant conditions. quinone 4-11 DExH-box helicase 9 Homo sapiens 80-85 27105286-7 2016 The data obtained and the already available information allowed systematizing several properties of NDH-2s: (i) the existence of additional sequence motifs with putative regulatory functions, (ii) specificity towards NADH or NADPH and (iii) the type of quinone binding motif. quinone 253-260 DExH-box helicase 9 Homo sapiens 100-105