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  • electron transfer
  • Its sequence and occurrence in the thylakoid lumen suggest that it is derived from cytochrome c6, which functions in photosynthetic electron transfer between the cytochrome b6f complex and photosystem I. Its known properties, however, and a strong indication that the disulfide group is not purely structural, indicate that it has a different, unidentified function. (epfl.ch)
  • We therefore suggest that the role of cytochrome c6A is to use its disulfide group to oxidize dithiol/disulfide groups of other proteins of the thylakoid lumen, followed by internal electron transfer from the dithiol to the heme, and re-oxidation of the heme by another thylakoid oxidant. (epfl.ch)
  • Consistent with this model, we found a rapid electron transfer between ferro-cytochrome c6A and plastocyanin, with a second-order rate constant, k2=1.2 x 10(7) M(-1) s(-1). (epfl.ch)
  • To shed light on this critical topic, we carried out extensive quantum mechanics/molecular mechanics simulations to calculate stepwise heme-to-heme electron transfer rates in the recently crystallized outer membrane deca-heme cytochrome MtrF. (pnas.org)
  • In this study, to elucidate the capability and the relevant metabolic processes of S. oneidensis MR-1 involved in an electron transferring environment, we employed genome-scale modelling to model the necessary metabolic states and flux adjustments for electricity generation in the cytochrome c-based direct electron transfer (DET) mode, the NADH-linked mediated electron transfer (MET) mode and a presumable mixed mode comprising DET and flavin secretion. (biomedcentral.com)
  • Compared with the DET mode, which relied on cytochrome c oxidase (EC: 1.1.1.2) to mediate the electron transfer, the MET mode was mainly dependent on two routes, catalysed by isocitrate dehydrogenase (NAD) (EC: 1.1.1.4) and NAD transhydrogenase, for the computed high current density value. (biomedcentral.com)
  • The genes were shown to be expressed, suggesting direct electron transfer as an additional possible mode to shuttle electrons from ANME-1 to the bacterial sulfate-reducing partner. (nih.gov)
  • heme
  • To help in the elucidation of this function the crystal structure of cytochrome c6A from Arabidopsis thaliana has been determined in the two redox states of the heme group, at resolutions of 1.2 A (ferric) and 1.4 A (ferrous). (epfl.ch)
  • These two structures were virtually identical, leading to the functionally important conclusion that the heme and disulfide groups do not communicate by conformational change. (epfl.ch)
  • reduction
  • The redox potentials of cyt c c adsorbed on SAMs of 3, 4, and 6 are significantly shifted from the formal potential, and a reduction peak at about 0.5 Vmore negative than the formal potential (that is, a value corresponding to amore difficult reduction) was observedinall three cases.These observations suggest that cyt c changes its conformationsignificantly on adsorption on these surfaces. (mendeley.com)
  • The septic group presented a general reduction in the content of cytochromes. (mendeley.com)
  • redox
  • Redox properties of cytochrome c adsorbed. (mendeley.com)
  • The redox behavior of cytochrome c (cyt c ) adsorbed to gold electrodes modified with self-assembled monolayers (SAMs) depends on the SAM. (mendeley.com)
  • This possibility is heavily used by dissimilatory metal reducing bacteria (DMRB), which are capable of using extracellular solid metal oxides as terminal respiratory electron sinks, a process that has been suggested to proceed via direct cell-mineral contact ( 1 ), extracellular redox shuttles ( 2 ), and/or pilus-like appendages ( 3 , 4 ). (pnas.org)
  • however
  • However, Vietnamese entomologists have recognized that mosquitoes belonging to the Leucosphyrus group in northern Vietnam exhibit morphological characteristics similar to those of Anopheles takasagoensis , which has been reported only from Taiwan. (biomedcentral.com)
  • molecular
  • In agreement with the mutagenesis study, the molecular docking simulation suggested that Thr309 played a significant role in stabilization of AFB 1 binding in the active center through a hydrogen bond. (mdpi.com)
  • role
  • In the mixed mode, whereas the cytochrome c-based DET accounted for most of the computed maximum current output value, the two flavins combined, riboflavin and FMN, played a much less important role in the probed current value. (biomedcentral.com)
  • essential
  • It is suggested that DipZ is essential for maintaining cytochrome c apoproteins in the correct conformations for the covalent attachment of haem groups to the appropriate pairs of cysteine residues. (nih.gov)
  • liver
  • Combining all, results suggest that AEPD protects murine liver against CCl 4 -induced oxidative impairments probably via its antioxidative property. (hindawi.com)
  • addition
  • In addition, the bulk phenyl group of Phe304 potentially imposed steric hindrance on the binding of AFB 1 . (mdpi.com)
  • study
  • This study suggests that electrochemical measurement can be a useful probe for the conformation and orientation of protein adsorbed on surfaces. (mendeley.com)
  • general
  • In general, the most biologically active compounds are dihydroxylated gibberellins, which possess hydroxyl groups on both carbon 3 and carbon 13. (wikipedia.org)
  • strong
  • Strong population genetic structuring in an annual fish, Nothobranchius furzeri, suggests multiple savannah refugia in southern Mozambique. (nih.gov)
  • Genetic markers consistently demonstrated strong population structuring and suggested two main genetic groups associated with river basins. (nih.gov)