Results 61 to 70 of about 3,804 (189)

Cuantificación, aislamiento e identificaciónde comunidades anaerobias amilolíticas de un manantial termomineral de Paipa, Boyacá

Revista Colombiana de Biotecnología, 2004
Se cuantif icaron microorganismos anaerobios termofílicos amilolíticos de un manantial termomineral en la región andina (5° 45' 69’’ N, 73° 6' 61’’ W, 2500 msnm) a través del Número Más Probable (NMP). Los recuentos microbianos de las poblaciones
Posada Yully, Agudelo Alejandra, Álvarez Elsa, Díaz Carolina, Joulian Catherine, Ollivier Bernard, Baena Sandra   +6 more
doaj   +2 more sources

Simultaneous expression of an endogenous spermidine synthase and a butanol dehydrogenase from Thermoanaerobacter pseudethanolicus in Clostridium thermocellum results in increased resistance to acetic acid and furans, increased ethanol production and an increase in thermotolerance

Biotechnology for Biofuels and Bioproducts, 2023
Background Sensitivity to inhibitors derived from the pretreatment of plant biomass is a barrier to the consolidated bioprocessing of these complex substrates to fuels and chemicals by microbes.
Sun-Ki Kim, Yannick J. Bomble, Janet Westpheling   +2 more
doaj   +1 more source

Photobiocatalytic Linear Deracemization of β‐Hydroxynitriles

ChemSusChem, Volume 19, Issue 19, 14 October 2026.
Photosensitizers were screened for the oxidation of β‐hydroxynitriles under blue light irradiation, finding tetra‐n‐butyl decatungstate as the most suitable catalyst for accessing ketonitriles. Subsequently, bioreductions were carried out, leading to the identification of stereocomplementary alcohol dehydrogenases for the development of a linear ...
Sara Filgueira, Fernando López‐Gallego, Vicente Gotor‐Fernández   +2 more
wiley   +1 more source

Ethanol production by the hyperthermophilic archaeon Pyrococcus furiosus by expression of bacterial bifunctional alcohol dehydrogenases

Microbial Biotechnology, 2017
Summary Ethanol is an important target for the renewable production of liquid transportation fuels. It can be produced biologically from pyruvate, via pyruvate decarboxylase, or from acetyl‐CoA, by alcohol dehydrogenase E (AdhE).
Matthew W. Keller, Gina L. Lipscomb, Diep M. Nguyen, Alexander T. Crowley, Gerrit J. Schut, Israel Scott, Robert M. Kelly, Michael W. W. Adams   +7 more
doaj   +1 more source

The Thermoanaerobacter glycobiome reveals mechanisms of pentose and hexose co-utilization in bacteria. [PDF]

PLoS Genetics, 2011
Thermoanaerobic bacteria are of interest in cellulosic-biofuel production, due to their simultaneous pentose and hexose utilization (co-utilization) and thermophilic nature. In this study, we experimentally reconstructed the structure and dynamics of the
Lu Lin, Houhui Song, Qichao Tu, Yujia Qin, Aifen Zhou, Wenbin Liu, Zhili He, Jizhong Zhou, Jian Xu   +8 more
doaj   +1 more source

Understanding the Catalytic Determinant role of Diaphorase‐Like Subunit in Formate Dehydrogenases via Redox Couples

Advanced Science, Volume 13, Issue 46, 17 August 2026.
A unique mechanism of catalytic bias regulated by diaphorase‐like subunit in formate dehydrogenase from Rhodobacter aestuarii is revealed. The diaphorase‐like subunit functions act as a biological “voltage rheostat” that controls the slow release of NADH to regulate redox balance, biasing the enzyme's catalytic preference toward CO2 reduction over ...
Kuncheng Zhang, Weisong Liu, Hao Su, Huijuan Cui, Yuanming Wang, Zhiguang Zhu, Chun You, Lingling Zhang   +7 more
wiley   +1 more source

Structure of HsdS subunit from Thermoanaerobacter tengcongensis sheds lights on mechanism of dynamic opening and closing of type I methyltransferase. [PDF]

PLoS ONE, 2011
Type I DNA methyltransferases contain one specificity subunit (HsdS) and two modification subunits (HsdM). The electron microscopy model of M.EcoKI-M₂S₁ methyltransferase shows a reasonable closed state of this clamp-like enzyme, but the structure of the
Pu Gao, Qun Tang, XiaoMin An, XiaoXue Yan, DongCai Liang   +4 more
doaj   +1 more source

Construction of a Bacterial Cellulase Cocktail for Saccharification of Regenerated Cellulose and Pretreated Corn Stover

BioResources, 2015
To apply bacterial cellulases for efficient saccharification of biomass, three Clostridium thermocellum cellulases and a Thermoanaerobacter brockii β-1,4-glucosidase were synthesized in Escherichia coli, and the proportions among them were optimized ...
Alei Geng, Jian Wu, Rongrong Xie, Xia Li, Fuxiang Chang, Jianzhong Sun   +5 more
doaj   +1 more source

S‐Adenosyl‐d‐Methionine as a Non‐Physiological Substrate for a Wide Range of SAM‐Dependent Enzymes

ChemBioChem, Volume 27, Issue 14, 29 July 2026.
From methylation and cyclisation to radical chemistry, diverse enzyme classes utilise the non‐canonical cofactor d‐SAM. These findings reveal an unexpected tolerance of SAM‐dependent catalysis towards inversion of the methionine Cα stereocentre. The ability of SAM‐dependent enzymes to accept S‐adenosyl‐d‐methionine [d‐SAM, (SS,RCα)‐SAM] instead of the ...
Philipp Germer, Lukas Gericke, Lars‐Hendrik Koeppl, Ziruo Zou, Emely Jockmann, Marco Kuge, Katrin Zoller, Hannah Herrmann, Ronja Fuderer, Michael K. F. Mohr, Agnes Bartels, Göksu Oral, Peer Lukat, Gunhild Layer, Michael Müller, Wulf Blankenfeldt, Lena Barra, Jennifer N. Andexer   +17 more
wiley   +1 more source

Residue-Specific Incorporation of the Non-Canonical Amino Acid Norleucine Improves Lipase Activity on Synthetic Polyesters

Frontiers in Bioengineering and Biotechnology, 2022
Environmentally friendly functionalization and recycling processes for synthetic polymers have recently gained momentum, and enzymes play a central role in these procedures.
Karolina Haernvall, Patrik Fladischer, Patrik Fladischer, Heidemarie Schoeffmann, Sabine Zitzenbacher, Tea Pavkov-Keller, Tea Pavkov-Keller, Tea Pavkov-Keller, Tea Pavkov-Keller, Karl Gruber, Karl Gruber, Karl Gruber, Michael Schick, Motonori Yamamoto, Andreas Kuenkel, Doris Ribitsch, Doris Ribitsch, Georg M. Guebitz, Georg M. Guebitz, Birgit Wiltschi, Birgit Wiltschi, Birgit Wiltschi   +21 more
doaj   +1 more source