Results 121 to 130 of about 117,075 (151)

Enhancement/evolution of biodesulfurization 4S pathway by genetic engineering and bioinformatic approaches

2019
Biodesulfurization could be a beneficial method in the industry for lowering the sulfur content of crude oil and could improve the efficiency of currently and costly used method, i.e., hydrodesulfurization. But, to achieve this goal, it is critical to enhancing the BDS rate using genetics and other omics approaches.
Borhani, Matia Sadat, Etemadifar, Zahra
openaire   +1 more source

Contribution of the Kodama and 4S pathways to the dibenzothiophene biodegradation in different coastal wetlands under different C/N ratios

Journal of Environmental Sciences, 2019
Dibenzothiophene (DBT) degradation mechanisms and the transformation of pathways during the incubation of three types of coastal sediments with C/N ratios ranging from 1 to 9 were investigated. The DBT degradation efficiencies were clearly improved with increasing C/N ratio in reed wetland sediments, tidal wetlands sediments and estuary wetland ...
Lei Wang, Guodong Ji, Siqiao Huang
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Study of a newly isolated thermophilic bacterium capable of Kuhemond heavy crude oil and dibenzothiophene biodesulfurization following 4S pathway at 60 °C

Journal of Chemical Technology & Biotechnology, 2008
AbstractBACKGROUND: To meet stringent emission standards stipulated by regulatory agencies, the oil industry is required to bring down the sulfur content in fuels. As some compounds cannot be desulfurized by existing desulfurizing processes (such as hydrodesulfurization, HDS) biodesulfurization has become an interesting topic for researchers.
Sarah Torkamani, Jalal Shayegan, Soheila Yaghmaei, Iran Alemzadeh   +3 more
openaire   +1 more source

Isoprenoid Biosynthesis via the MEP Pathway: In Vivo Mössbauer Spectroscopy Identifies a [4Fe-4S] ²⁺ Center with Unusual Coordination Sphere in the LytB Protein

Journal of the American Chemical Society, 2009
The MEP pathway for the biosynthesis of isoprene units is present in most pathogenic bacteria, in the parasite responsible for malaria, and in plant plastids. This pathway is absent in animals and is accordingly a target for the development of antimicrobial drugs. LytB, also called IspH, the last enzyme of this pathway catalyzes the conversion of (E)-4-
Myriam, Seemann, Karnjapan, Janthawornpong, Julia, Schweizer, Lars H, Böttger, Adam, Janoschka, Anne, Ahrens-Botzong, Erasmienne Ngouamegne, Tambou, Olaf, Rotthaus, Alfred X, Trautwein, Michel, Rohmer   +9 more
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Isoprenoid biosynthesis in chloroplasts via the methylerythritol phosphate pathway: the (E)-4-hydroxy-3-methylbut-2-enyl diphosphate synthase (GcpE) from Arabidopsis thaliana is a [4Fe?4S] protein

JBIC Journal of Biological Inorganic Chemistry, 2005
The mevalonate-independent methylerythritol phosphate pathway is widespread in bacteria. It is also present in the chloroplasts of all phototrophic organisms. Whereas the first steps, are rather well known, GcpE and LytB, the enzymes catalyzing the last two steps have been much less investigated.
Seemann, M., Wegner, P., Shunemann, V., Bui B. Tse, Sum, Wolff, M., Marquet, A., X. Trautwein, A., Rohmer, M.   +7 more
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(3R,4S)-3,4,5-Trihydroxy-4-methylpentylphosphonic acid, an isosteric phosphonate analogue of 2-C-methyl-d-erythritol 4-phosphate, a key intermediate in the new pathway for isoprenoid biosynthesis

Tetrahedron Letters, 2004
Abstract 2- C -Methyl- d -erythritol 4-phosphate (MEP) is the first intermediate in the mevalonate-independent pathway for isoprenoid biosynthesis presenting the branched C 5 isoprene skeleton. Enantiopure (3 R ,4 S )-3,4,5-trihydroxy-4-methylpentylphosphonic acid (MEP N ), an isosteric phosphonate analogue of MEP was synthesized from 1,2- O ...
Guillaume Hirsch, Catherine Grosdemange-Billiard, Denis Tritsch, Michel Rohmer   +3 more
openaire   +1 more source

Isoprenoid biosynthesis via the MEP pathway. Synthesis of (3R,4S)-3,4-dihydroxy-5-oxohexylphosphonic acid, an isosteric analogue of 1-deoxy-d-xylulose 5-phosphate, the substrate of the 1-deoxy-d-xylulose 5-phosphate reducto-isomerase

Organic & Biomolecular Chemistry, 2003
(3,4)-3,4-Dihydroxy-5-oxohexylphosphonic acid, an isosteric analogue of 1-deoxy-D-xylulose 5-phosphate (DXP), was obtained in enantiomerically pure form from (+)-2,3--benzylidene--threitol by a seven-step sequence. This phosphonate did not affect the growth of.
Odile, Meyer, Catherine, Grosdemange-Billiard, Denis, Tritsch, Michel, Rohmer   +3 more
openaire   +2 more sources

Characterization of ferredoxins involved in electron transfer pathways for nitrogen fixation implicates differences in electronic structure in tuning 2[4Fe 4S] Fd activity

Journal of Inorganic Biochemistry
Ferredoxins (Fds) are small proteins which shuttle electrons to pathways like biological nitrogen fixation. Physical properties tune the reactivity of Fds with different pathways, but knowledge on how these properties can be manipulated to engineer new electron transfer pathways is lacking. Recently, we showed that an evolved strain of Rhodopseudomonas
Nathan M, Lewis, Effie C, Kisgeropoulos, Carolyn E, Lubner, Kathryn R, Fixen   +3 more
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QM/MM study of the [4Fe-4S]-dependent (R)-2-hydroxyisocaproyl-CoA dehydratase: Dehydration via a redox pathway with an α-carbonyl radical intermediate

Journal of Catalysis, 2023
Wen-Jie Wei, Rong-Zhen Liao
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Kinetic Co‐assembly Pathway Induced Chirality Inversion Along with Morphology Transition

Angewandte Chemie - International Edition, 2022
Chuanliang Feng
exaly